Xiamen Greenair Precision Machinery Co., Ltd., now operating under Greekn Heavy Industry Group (China) Limited, has invested significantly in expanding the manufacturing capacity for its comprehensive range of compressed air treatment and storage products. This strategic move reinforces Greenair’s ability to supply a complete, factory-engineered Compressed Air System—from the compressor itself to the Compressed Air Dryer, Air Receiver Tank, Oil Separate Tank, and Screw Vacuum Pump. By consolidating the production of these key components in its Xiamen facility, Greenair ensures seamless compatibility and consistent quality across the entire compressed air circuit.
The dryer production department is split into two main lines. One line assembles Refrigerant Air Dryer units, featuring brazed plate heat exchangers and energy-saving hot gas bypass valves. Each completed refrigerant dryer is charged with eco-friendly refrigerant and tested to confirm a stable pressure dew point of +3 degrees Celsius. The second line produces Adsorption Air Dryer models, where desiccant-filled aluminum towers are assembled, valving is fitted, and the regeneration logic is programmed and verified. Both dryer types are vital Air Purification Equipment that protect downstream equipment from moisture and corrosion.
In the pressure vessel manufacturing section, certified welders fabricate vertical and horizontal Air Receiver Tank units from carbon steel plates using automated welding processes. Every tank receives a hydrostatic pressure test, an internal inspection, and a surface treatment before painting. The same stringent protocols apply to the fabrication of the Oil Separate Tank used in oil injected compressor systems. These tanks incorporate advanced mechanical separation media to reduce oil carryover and are leak-tested under high pressure.
The newest addition to the factory floor is the vacuum pump production cell, where Greenair builds its Screw Vacuum Pump series. The dry screw vacuum pump modules are assembled from precisely machined components, synchronized with timing gears, and integrated with a direct-drive IE3 motor and a control panel. Each pump is run on a test bench that measures ultimate vacuum level, pumping speed, and power consumption. The pumps can be used standalone or integrated with Air Receiver Tank buffer vessels and filtration systems for complete vacuum solutions.
By bringing the full scope of air treatment, storage, and vacuum production in-house, Greenair can offer matched sets of equipment that are optimized to work together. The company’s manufacturing execution system tracks each item with a unique serial number, and the entire batch can be inspected and shipped as a unified solution. This vertically integrated approach is a direct result of Greenair’s “Customer First” philosophy, ensuring that every component from a single Oil Injected Rotary Screw Air Compressor to a complete Compressed Air System with dryers, tanks, and vacuum pumps meets the highest standards of reliability and efficiency.
