Screw Vacuum Pump Working Principle

Screw Vacuum Pump.jpg

Recently, Tianjin Shuangjin Pump Machinery Co., LTD., a high-tech enterprise in Tianjin, has clearly interpreted the core Screw Vacuum Pump Working Principle for the industry with its profound technical accumulation in the field of fluid machinery, demonstrating the company’s strong strength in the research and development and manufacturing of high-end pump products.

I

Core Working Principle of Screw Vacuum Pump: Driven by volumetric vacuum technology

As an efficient vacuum acquisition device, the screw vacuum pump operates on the principle of volumetric vacuum technology. The device is equipped with two intermeshing screw rotors inside. Driven by a motor, the two rotors rotate at high speed in opposite directions.

When the rotor rotates, a periodically changing closed working volume is formed inside the pump cavity. The entire pumping process is divided into three key stages:

✓ Suction stage

As the rotor tooth grooves connect with the suction port, the working volume gradually increases, creating a local vacuum. Under the action of pressure difference, the gas to be extracted is sucked into the tooth grooves.

✓ Compression stage

The rotor continues to rotate, and the inhaled gas is carried into the compression area in the middle of the pump chamber. At this time, the working volume keeps decreasing, the gas is compressed, and the pressure gradually increases.

✓ Exhaust stage

When the tooth grooves are connected to the exhaust port, the compressed gas is discharged outside the pump under pressure, completing one exhaust cycle. By operating continuously in this way, a stable vacuum extraction effect can be achieved.

II

Technological Empowerment: Innovation and Advantages of Tianjin Shuangjin Pumps

It is worth noting that Tianjin Shuangjin Pump Machinery Co., Ltd. has integrated a number of independent innovation technologies in the research and development of products such as Screw Vacuum Pump Working Principle. Relying on a professional engineering and technical team and combining the achievements developed in cooperation with universities, the company has applied advanced rotor profile design, high-precision processing technology and intelligent control technology to its products, effectively enhancing the operational stability, pumping efficiency and service life of screw vacuum pumps.

The relevant person in charge of the company stated that screw vacuum pumps, with their advantages such as a wide range of pumping speeds, high ultimate vacuum degree, and low operating noise, have been widely applied in high-end fields like electronic semiconductors, biomedicine, and new energy.

III

Corporate Mission: To support the development of the industry with high-quality products and services

As an enterprise with multiple national patents, Tianjin Shuangjin Pumps has always adhered to the principle of “Quality First, Customer Supreme”. The enterprise can not only provide users with high-precision and high-reliability screw vacuum pump products, but also customize and optimize fluid solutions according to their needs. At the same time, it undertakes the maintenance and drawing tasks of high-end foreign products, providing high-quality services for the national economic development and the international market, and contributing to the high-quality development of the industry.


Post time: Oct-27-2025