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A closer look into the efficiency of dry screw vacuum pumps

Blog Dry screw pumps 2024

Dry screw vacuum pumps offer a breakthrough solution for numerous industries seeking efficiency, reliability, and eco-friendliness in their processes. The core of the Dry Screw vacuum pump lies in its twin screws, crafted with a variable pitch and tapered design. These screws, operating in parallel with minimal clearance, facilitate the axial flow of gases from the inlet port to the exhaust port. The ingenious spiraling motion of the screws propels pumped gases towards the exhaust port, ensuring a seamless, oil-free operation.

Dry screw vacuum pumps working principle

These pumps employ a mechanism that's non-contacting and entirely oil-free. Unlike oil-injected screw pump elements, the dry screw vacuum pump's design achieves a remarkable compression ratio. This enables a smooth, gradual compression process, resulting in an exceptional vacuum level of <0.01 mmHg. One of the examples is the Atlas Copco DWS series, renowned for its innovative rotor design that offers impeccable thermal control and optimized pumping across varying inlet pressures.

Dry screw vacuum pumps have redefined efficiency, reliability, and sustainability in industrial processes. Their oil-free, non-contacting mechanism, coupled with cutting-edge features, caters to diverse industries, making them an indispensable asset for those seeking optimal performance without compromising on environmental consciousness. 

The Atlas Copco DWS VSD+ series takes this innovation further with its specially designed inverter duty motor and built-in VFD inverter. This dynamic combination adapts the pump's speed according to the process demand, ensuring flexibility and efficiency. Moreover, the inverter duty motor's capability to operate at minimal speeds without overheating expands the operational horizons of these pumps, making them versatile across a wide range of applications.

The versatility of Dry Screw vacuum pumps extends to various industries, including metallurgy, LED manufacturing, lithium battery production, solar, heat treatment, coating processes, and even the production of items like toothpaste and gel.