Oil-free Scroll Electric Air Compressor For BUS or Trcuk

Short Description:

NF specializes in the production of oil-free scroll air compressors, replacing piston and screw air compressors.

It converts the rotational power of the motor into compressed air. The entire process does not require the participation of lubricating oil, thus providing pure and oil-free compressed air.

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Product Detail

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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. Zero-Oil Operation with Ultra-High Air Purity
The compressor employs a fully oil-free scroll design, eliminating lubricating oil from the entire compression process. This ensures complete separation of oil from the compressed air stream, delivering Class 0 certified oil-free air (per ISO 8573-1:2010) — the highest international standard for air purity.

2. High Volumetric Efficiency and Energy Efficiency
The inherent continuous meshing action of the orbital scroll mechanism achieves a volumetric efficiency exceeding 95%, significantly outperforming conventional reciprocating and rotary screw compressors in both isentropic efficiency and part-load energy performance — resulting in lower lifecycle operating costs.

3. Low Noise Emission and Minimal Mechanical Vibration
The inherently balanced, circumferential compression motion eliminates valve impact, piston slap, and gear meshing noise. Combined with precision dynamic balancing and integrated resilient mounting, the unit operates at ≤62 dB(A) at 1 meter and requires no external vibration isolation.

4. Simplified Maintenance Regimen and Extended Service Life
With no oil changes, oil filters, or oil–air separators required, maintenance intervals are extended to 10,000 operating hours. The robust, low-wear scroll architecture — coupled with IP55-rated brushless DC motor and sealed-for-life bearings — ensures a design service life exceeding 50,000 hours under rated duty cycles.

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.