Permanent magnet double frequency two-stage compression screw air compressor
Two-Stage Compression, Up to 15% Higher Energy Efficiency vs Single-Stage Models
Two-stage compression achieves a smaller compression ratio, less air leakage and lower bearing load, which greatly extends bearing service life.
Unique curtain-type intermediate coolant injection design lowers air temperature and cuts power consumption for compression.
Adopts the design concept of large rotors, oversized bearings and low rotational speed to reduce noise and vibration, improving the service life and stability of the airend.
Rotor profiles are precision ground to deliver ultra-high rotor accuracy.
Innovative 5:6 asymmetric rotor profile, fully inspected by high-precision 3-coordinate measuring machines, boosting air delivery by 5%–10%.
Fitted with imported brand bearings.
Special Motor for Air Compressors
High starting torque.
PM VFD Screw Air Compressor motor equipped with imported brand bearings.
IE3 high-efficiency motor to cut your operating costs.
Designed with a service factor of 1.2.
IP54 protection class, F-class insulation.
Permanent Magnet Synchronous Motor
IP54 protection rating, more stable and reliable than IP23 under harsh working conditions.
Oil cooling design stabilizes motor operating temperature for a longer service life; no axial cooling fan eliminates fan power loss.
Coaxial layout with the airend male rotor removes power loss from couplings and gearboxes.
Ceramic coated bearings eliminate damage caused by bearing current.
Built with 38UH magnetic steel, capable of withstanding temperatures up to 180°C.
Custom Vector Inverter
Professionally customized for compressor applications.
Monitors all motor parameters including motor temperature to mitigate risks of motor overheating.
Independent air duct design delivers strong environmental adaptability.
Ultra-fast response with response time below 50ms.
High low-frequency torque, capable of outputting 180% rated torque.
Low-Noise Centrifugal Fan
Centrifugal fan design offers higher efficiency and greater energy savings.
Compared with axial fans, centrifugal fans deliver higher wind pressure, lower noise and better energy efficiency.
DHVZ models adopt variable-frequency fan control to maintain constant oil temperature and extend lubricant service life.
High wind pressure prevents clogging of coolers and filter screens.
Three Core Filter Elements
Air Filter: Filtration area reaches 150% of standard demand, featuring low intake pressure drop and excellent energy efficiency.
Oil Filter: Oversized filter element made of imported glass fiber media; rated handling capacity ≥1.3 times circulating oil volume, with high filtration precision and superior durability.
Oil Separator: Imported glass fiber separator core delivers outstanding oil removal performance with low pressure drop.
Special Valves for Air Compressors
Intake Valve: Optimized via low-flow velocity testing with minimal pressure drop to reduce energy consumption.
Minimum Pressure Check Valve: Low pressure drop and fast re-seating performance.
Thermostatic Valve (Partial Models): Units fitted with mixed-flow thermostatic valves enable easy startup in low-temperature environments. It stabilizes unit performance by regulating oil supply temperature of the airend.
