Machine parameters Pressure range:0.3~0.8mpa Product advantages:22~55kw 1.Patented double-screw technology: double-screw technology eliminates star wheel wear defects and is more efficient. 2.Absolutely oil-free: There’s no oil and nogrease inside the air-end to ensure the cleanliness of the air. 3.Cooling system: External suction top exhaust centrifugal cooling system, with pre-filter, cleaning is more convenient. 4.Safer: Independent water pump, builds up water pressure before starting, protects bearings and rotors. 5.Low noise: The whole machine runs smoothly, with water-cooled motor, compact structure and low noise. 6.More practical: permanent magnet frequency conversion drive, wider frequency conversion range, constant temperature and constant voltage output. 7.More intelligent: multiple protections, constant temperature and constant pressure output, intelligent display and control + remote monitoring + Internet of Things, built-in intelligent flowmeter and electricity meter, and clearly display the operating conditions.