Oil Free Scroll Compressor PM Air End 2.2KW-5.5KW
OEM permanent magnet oil-free scroll air end, 2.2-5.5 kW, 8-10 bar, TUV Rheinland Class 0, silent and low-vibration, long maintenance interval.
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The PM oil free scroll compressor air end is the compression core used by compressor brands and equipment builders. Covering 2.2 kW, 3.7 kW and 5.5 kW at 8-10 bar, it delivers 100% oil-free air with TUV Rheinland Class 0 certification and is supplied as an OEM module – with or without motor, fan and enclosure – so you can integrate it into your own machine.
Key features
- TUV Rheinland Class 0 certified. Oil carry-over is verified to ISO 8573-1 Class 0, the strictest class for compressed air quality.
- Wide power range. 2.2 kW, 3.7 kW and 5.5 kW models at 8 bar, with a 10 bar high-pressure option.
- Silent and low vibration. Orbiting scroll geometry gives continuous, pulse-free compression with very low noise.
- Long maintenance interval. Only a few wearing parts, and no oil or oil filter to change.
- OEM supply. Air end only, or air end plus PM motor and drive – matched to your enclosure, control logic and nameplate.
- Proven scroll profile. Machined on dedicated scroll line equipment with 0.008 mm tolerance control.
Technical specifications
This model is supplied as an air-end module. Model-by-model flow and pressure data is shown in the data sheet images below; send us your required flow and pressure and we will confirm the exact model.
Applications
- Compressor OEMs building oil-free scroll machines
- Medical, laboratory and dental air systems
- Food and beverage plants requiring Class 0 air
- Oxygen concentrators and nitrogen generators
- Replacement air end for existing oil-free scroll compressors
Why buy from Hejun
- 100% oil-free, Class 0 air. Scroll compression with no oil in the air path, verified to ISO 8573-1 Class 0 by TÜV Rheinland.
- Manufacturer, not a trader. 80+ patents, 30+ engineers and an in-house test centre in Zhejiang, China.
- OEM / ODM ready. Custom voltage, pressure, colour, logo, packaging and nameplate for distributors and equipment builders.
- Every unit tested three times before shipment: pre-run, teardown inspection and performance test.
- Fast response. Quotation within 24 hours, English-speaking export team, worldwide shipping.
Product detail images
Frequently asked questions
Can I buy only the air end without the motor?
Yes. The PM air end can be supplied as a bare compression module, or complete with the permanent magnet motor, inverter and cooling fan.
Is the air end compatible with my existing enclosure?
In most cases yes, but mounting points, shaft interface and cooling air path must be checked. Send us a drawing and we will confirm.
What is the lead time for OEM orders?
Samples are typically ready in 2-3 weeks; production quantities depend on configuration and are confirmed with the quotation.
