A screw vacuum pump is a dry, positive-displacement vacuum pump that uses a pair of counter-rotating, non-contacting screw rotors which continuously mesh, seal, convey, and discharge gas inside the pump chamber. By continuously removing gas from an enclosed space, it reduces the pressure below atmospheric—down to near-zero levels. Owing to its dry operation, wide operating pressure range, high efficiency, and low maintenance requirements, the screw vacuum pump has become the preferred alternative to traditional oil-sealed and water-ring technologies in pharmaceutical and chemical processing, food freeze-drying, lithium-battery and other new-energy manufacturing, semiconductor and photovoltaic production, and environmental-protection applications.

A pipeline filter is installed in compressed-air or liquid transport lines and is widely used in compressor-station after-treatment, process-fluid, steam, and industrial water-supply or drainage systems. By efficiently removing particles and oil mist with minimal pressure drop, it provides a clean, stable medium to downstream equipment, markedly improving equipment reliability, product quality, and energy efficiency. Consequently, pipeline filters are indispensable safety and quality-assurance components in compressed-air and fluid piping systems.

An air receiver tank is a pressure vessel in a compressed-air system that temporarily stores compressed air, providing energy buffering, pressure and flow stabilization, preliminary condensate separation, residual-heat cooling, and safety redundancy.

Absorption Desiccant Air Dryer is a compressed-air after-treatment device available in ratings from 5 to 600 HP. Using regenerable desiccants—such as activated alumina or molecular sieves—it adsorbs moisture from the air, lowering the pressure-dew-point to −20 °C, −40 °C, or even −70 °C. This provides a reliable supply of ultra-dry compressed air for applications that require extremely low humidity.

Refrigerated air dryer in the 7.5 – 400 HP range is a compressed-air after-treatment device whose primary job is to remove moisture from compressed air and lower its pressure dew point to about +2 °C to +10 °C. By doing so, it prevents corrosion, icing, pipeline water accumulation, product defects, and instrumentation failures caused by water vapour.

Air booster rated for 30–40 bar，30HP-120HP，does not generate compressed air on its own; instead, it takes existing low-pressure air (typically 6–8 bar) and further compresses it to 20 bar, 30 bar, 40 bar, or even higher. Compared with purchasing a high-pressure compressor of the same flow rate, deploying a booster is more economical, more efficient, and more reliable.