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Piston vs Rotary Compressor - Which is Better?

Discover the key differences of piston vs rotary screw air compressors in our informative blog. Explore their pros and cons, performance characteristics, and suitable applications. Make an informed decision for your industrial air compression needs.

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a rotary screw compressor? How are they different and when one option is better than the other?

The main criteria always shall be the

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a rotary screw compressor? How are they different and when one option is better than the other?

The main criteria always shall be the

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a rotary screw compressor? How are they different and when one option is better than the other?

The main criteria always shall be the

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a rotary screw compressor? How are they different and when one option is better than the other?

The main criteria always shall be the

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a rotary screw compressor? How are they different and when one option is better than the other?

The main criteria always shall be the

If you are in the market, looking for an air compressor then you know that they come in many different variants, basis on the capacity, pressure requirement, different technologies, sizes, and varieties. It is just like we find many options in the market when we look for cars. But most of us do not know, how do we decide which air compressor is the right choice for our given requirement? 

So while going for it, one should essentially know certain things like, where you will be using the compressed air? What is the application? How much compressed air capacity do you actually need? What is the quality of the air you need for your process? And what kind of installation of the compressor you would be looking for?

Should you go for a reciprocating piston compressor or a rotary screw compressor? How are they different and when one option is better than the other?

The main criteria always shall be the total life cycle cost which consists of energy cost, investment and maintenance.

How an air compressor works

Broadly speaking there are two

Broadly speaking there are two

Broadly speaking there are two

Broadly speaking there are two type of compression system designs from which all commercially available air compressors are derived. They are

Broadly speaking there are two

Broadly speaking there are two

Broadly speaking there are two type of compression system designs from which all commercially available air compressors are derived. They are

Broadly speaking there are two type of compression system designs from which all commercially available air compressors are derived. They are

Broadly speaking there are two

Broadly speaking there are two type of compression system designs from which all commercially available air compressors are derived. They are

Broadly speaking there are two type of compression system designs from which all commercially available air compressors are derived. They are dynamic compression and positive pisplacement compression. In positive displacement compressors type, there are two air compressor designs: the reciprocating piston technology and the rotary screw technology.

The very basic premise of an air compressor is that it draws in large volumes of air to the machine. The air is then compressed inside the machine so it can be later released at elevated pressure and compressed volume.

The pressure is how hard the air comes out of the machine. The volume is the amount of air that comes out of the machine.  

Let's take a closer look at these two types.

What is a piston compressor?

piston compressor which is also known as the

piston compressor which is also known as the

piston compressor which is also known as the

piston compressor which is also known as the

piston compressor which is also known as the reciprocating compressors, has many moving parts involved in order to bring-in the compressed air out. The piston compressor has major parts like:

  • Crankshaft
  • Connecting rod
  • Piston
  • Cylinder
  • Channel Valves
  • Valve springs
  • Bearings
  • Packing etc.
  • V belts
  • Belt- pulleys
reciprocating-compressor
The crankshaft is driven by prime-mover that is either an electric motor or a fuel-driven engine. The machine will come with an option to have an air tank to hold the amount of compressed air. The crankshaft operates and forces the piston to move up and down inside the machine. There is a valve at each end of the cylinder. When the piston moves one-way air enters the cylinder. Then, when it moves the other way the air inside the cylinder is compressed. As the volume decreases, pressure increases. The full compression cycle is the process by which the air comes into the cylinder and then gets compressed to the required pressure. Depending on the pressure requirement, the number of stages is decided by the manufacturer. In a single-stage piston compressor, the piston will compress the air in one stroke. One stroke means the piston has a full-motion with one rotation of the crankshaft. In layman's terms, a single-stage piston will travel forward & backward directions with one rotation of the crankshaft. A single-stage unit can operate with lower RPMs and noise levels. A two-stage unit uses two pistons. One crank uses one piston to bring the air into a cylinder. It's then transferred and a second piston for the further air compression and in turn for pressure elevation. In the case of an oil-lubricated piston compressor, the piston and crankshaft need lubrication to operate effectively. When the piston moves in the cylinder the lubrication oil gets mixed with compressed air. This means that the compressed air coming out of the compressor will have some oil in it. In the case of an oil-free piston compressor, the crankshaft needs lubrication to operate effectively whereas the piston won’t be lubricated with oil. This means that the compressed air coming out of the compressor will not have any oil in it. However, it is very essential to understand that, in piston-type compressor the compressed air output shall be pulsation type (not constant) and unbalanced vertical forces cause cylinder ovality, acting along with the piston weight and also an unbalanced couple necessitating heavy foundation. They are also very bulky in size and weight.

What is a rotary screw compressor?

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the class 0 standard in accordance with 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the class 0 standard in accordance with 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the class 0 standard in accordance with 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the class 0 standard in accordance with 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the class 0 standard in accordance with 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the class 0 standard in accordance with 

The rotary screw compressor is also the technology that falls under the positive displacement compression method. Here, the air gets trapped between the two rotors namely male & female rotors & then move forward under pressure condition.

There are further two types of screw compression. Oil injected or lubricated screw compressor & second is an oil-free screw compressor. Let’s talk about both these types.

Oil injected screw compressor, compresses the air between the two rotors wherein the oil is been splashed over the rotors to act as coolant, sealant & lubricant. Here, the oil forms a thin layer over the rotors however, gets mixed with the air which is compressed in the compression chamber. With the technological limitations, one cannot have compressed air 100% free from the oil when it comes out of the compressor. Although one can provide the filters to remove the oil content from the air, however, you will still have some amount of oil carried-over along with the air in the process.

Air compression in oil-free screw compressor technology is also very similar to that of oil-injected screw compressor however, here the lube oil is not being used for cooling, sealing & lubrication purposes. Both the screw rotors are coated with anti-rust material which as well acts as a lubricant. The specially designed cooling jackets are provided in order to maintain the temp. inside the screw chamber. The quality of the air you get out of this compressor is 100% meet the class 0 standard in accordance with ISO8573-1:2010 requirements.

rotary-compressor
In the case of oil-free screw compressors, as both the screw rotors (male & female) are not touching to each other, the wear & tear of these elements is very minimal & also the noise emission is limited to the standards. There won’t be any oil carryover in this type of compressor which increases the overall uptime of the system. The coolers designed for these compressors are much efficient although, they are compact in size. The compressed air delivered by the screw compressor is continuous without having any pulsations. One has to select the type of screw compressor based on the application & the quality of air required for the given process.

Comparison: Piston vs Rotary Screw Air Compressor

Now you know how piston and rotary screw technologies work, you will read further about the direct comparison between the two. How do you decide which air compressor is right for your given application?

Wear and tear and maintenance

Piston compressors have more moving parts as compare to screw compressors. Since there are more parts that are moving, there is more wear and tear on those parts which end up requiring more & frequent maintenance. But because the piston compressor is simple is design, one should find it easier to maintain than that of a rotary screw. The frequency of carrying-out the maintenance in case of a screw compressor is less than that of the piston compressor.

Temperature, noise and vibration

A piston compressor is running much hotter than that of a rotary screw compressor. The rotors used in the screw compressor are not touching each other directly. With the piston compressor, the piston rings are always in contact with the cylinder walls. Because of the contact, there is more friction and this ultimately results in higher temperatures from the machine.

For the same reason, the piston compressors have more vibrations and run with louder noise. One mostly needs to provide a foundation for the piston compressor in order to minimize the vibrations which also attracts the additional cost of construction. The rotary screw compressors are much quieter as they are provided with anti-vibration pads. Screw compressor doesn’t require the foundation & can be placed on the finished leveled floor. 

Space and energy efficiency

As you know, the piston compressors occupy lots of space in order to achieve the desired compressed air flow & the pressure. It is also very necessary to have a bigger & stronger foundation to take care of the bulkiness & size of the piston compressor.

The screw compressors require much lesser space for a similar capacity machine than that of the piston. The design of the screw compressor is very compact & therefore requires less space. Moreover, no foundation is required for these compressors.

Oil issues

As already explained, the oil-injected piston compressor will have more oil carry-over in the compressed air than an oil-injected rotary screw compressor does. However, the piston compressor will release some oil in the compressed air, more than a rotary screw compressor does. 

Piston compressors will have more moving parts and more frictional losses as compared to screw. But if your application doesn’t need the clean (oil-free) air, then one can look for the option of piston compressor as they are more cost-effective & the initial cost of investment would be lesser. 

Conclusion

Each compression technology have it’s own best operating range and for piston compressors they are best fit for high pressure compression for pressures above 14bar , while screw compressors are the most common reliable efficient solution for medium pressure application.

Also having both technologies mixed to generate medium pressure and high pressure by having screw compressor to generate medium pressure coupled with piston booster is the best way to get advantage of the low SER for screw compression for pressure below 14bar and low SER for piston compressors up to 40 Bar.

Piston vs Rotary Compressor - Which is Better?

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