The technical features of Roots vacuum pumps mainly include the following aspects:
High vacuum and oil-free operation: Roots vacuum pumps can achieve a high ultimate vacuum, which is suitable for applications that require high vacuum, such as semiconductor manufacturing and optical film preparation. Since a certain gap is maintained between its rotor and the pump chamber, no lubricating oil is required, so oil-free operation can be achieved, which is suitable for industries with high gas purity requirements, such as food and medicine.
Compact structure and small footprint: The rotor of the Roots vacuum pump does not require lubrication, and there is no oil in the pump chamber, so the structure is relatively compact and the footprint is small, which is suitable for occasions with limited space, such as laboratories and small production lines.
Fast start-up and low maintenance cost: Roots vacuum pumps have the characteristics of low noise and low vibration, fast start-up, and low operation and maintenance costs. Its rotor has good dynamic balance conditions, low drive power, and low mechanical friction loss, thereby reducing operating costs.
Wide range of pressure and pumping speed: Roots vacuum pump has a large pumping speed in a wide pressure range (1000Pa to 1Pa), which can quickly remove suddenly released gas, and is suitable for occasions that require rapid pumping, such as vacuum drying and vacuum distillation processes.
Good dynamic balance performance and stability: The rotor of Roots vacuum pump has a symmetrical shape, good dynamic balance performance, and stable operation. Even at high speed, it can maintain a low vibration and noise level, which improves the reliability and service life of the equipment.
No internal compression and external compression: The working space volume of Roots vacuum pump remains unchanged during the pumping process, achieving no internal compression. When the top of the rotor passes the edge of the exhaust port, the high-pressure gas backwash causes the gas pressure in the space to rise rapidly to the exhaust pressure, completing the external compression process. This design makes the Roots vacuum pump efficient and stable when removing gas.
