NF Group Oil-free Scroll Electric Bus Air Compressor
Product Description
The liquid-cooled oil-free scroll air compressor system is an oil-free, quiet, liquid-cooled, and long-life on-board air supply system specifically designed for new energy commercial vehicles and passenger cars. Its core component is a liquid-cooled oil-free scroll air compressor, which is deeply integrated with the vehicle's thermal management, electronic control, and air circuit systems. The oil-free scroll air compressor represents a significant technological innovation in on-board systems, filling a technological gap in China. It overcomes the shortcomings of piston and screw air compressors, saving OEMs substantial costs.
Product Parameter
| Item | Power
KW |
Pressure
MPa |
Motor type | Connection method | Exhaust port size |
| DS-CZ1.5A-8 | 1.5 | 0.85 | Permanent magnet synchronous motor | direct connection | Internal threadM22X1.5 |
| DS-CZ2.2A-10 | 2.2 | 1.0 | Permanent magnet synchronous motor | direct connection | |
| DS-CZ3.7B-12 | 4.5 | 0.85-1.2 | Permanent magnet synchronous motor | direct connection | |
| DS-CP3.7A-10 | 3.7 | 0.85-1.0 | AC asynchronous | belt | |
| DS-CZ3.7E-10 | 3.7 | 1.0 | AC asynchronous/DC brushless | direct connection | |
| DS-CZ3.7D-10 | 3.7 | 0.85-1.0 | AC asynchronous/DC brushless | direct connection |
Product Features
1. Oil-Free Operation, Class 0 Air Purity
Fully oil-free scroll design ensures zero oil contamination in the air stream — certified to ISO 8573-1:2010 Class 0, the highest global standard for air purity.
2. High Efficiency, Low Operating Cost
Volumetric efficiency >95% — superior to reciprocating and rotary screw compressors in both full-load and part-load performance, reducing lifetime energy costs.
3. Quiet & Vibration-Free Operation
Balanced orbital motion eliminates valve, piston, and gear noise. Precision balancing and resilient mounting deliver ≤62 dB(A) at 1 m — no external vibration isolation needed.
4. Minimal Maintenance, Long Life
No oil changes, oil filters, or oil–air separators required. 10,000-hour service intervals. IP55 brushless DC motor + sealed-for-life bearings support >50,000 hours of rated-life operation.
Application
Vehicle-mounted oil-free scroll air compressors are mainly used in electric buses, electric logistics vehicles, electric school buses, air brakes, air suspension, pneumatic doors, and other vehicles.
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