First generation

    First generation representative model: H-8

    Structure: horizontal, double cylinder

    The structure of the former Soviet Union in the 1970s occupies a large area.

    Due to poor balance, poor transmission efficiency, slow speed, high power, 18.5kW

Second generation

       Second generation representative model: H-150

       Structure: horizontal, single cylinder

       In the 1990s, referring to the American structure, the occupied space was more compact than the H-8, the pump body and the fuel tank were optimized, the balance was improved, and the power was reduced, requiring only a 15kW motor.

Third Generation

The third generation model: hl-150

Structure: vertical, single cylinder, double cylinder

In the 21st century, on the basis of h-150, the horizontal layout of the motor is designed as a right layout, which reduces the floor area, optimizes the transmission parts, and reduces the vibration and energy consumption.

At the same time, the convenience of maintenance is improved, and the power is reduced, which only needs 11kw.

Combining the advantages of H-8 and hl-150, it is a national invention patent product designed for high pollution industry. Under the power of 11kw, it has the functions of oil gas separation, oil mist purification, solid-liquid separation, automatic decontamination, oil filtration and water removal.

Fourth Generation

     In the 21st century, combined with American technology, the fourth-generation single-stage spool valve vacuum pump was developed. This type uses a three-cylinder series structure, which greatly optimizes the balance, so the vibration is very small, and it is made of wear-resistant materials, which reduces the size and saves energy. .

     This type uses a modular design. Such as oil mist purifier, oil-water separator, dust filter, oil purifier, etc. can be directly connected with the vacuum pump to increase the service life of the vacuum pump and optimize the use environment.