NF Group High Pressure Oil-Free Air Compressor 4KW Oil-Free Air Brake Compressor

Hebei Nanfeng – Scroll Water-Cooled High Pressure Oil-Free Air Compressor for Commercial EVs

Founded in 1993, Hebei Nanfeng Automobile Equipment (Group) Co., Ltd. is a prominent Chinese group with six manufacturing plants. As a designated supplier for Chinese military vehicles and a leading supplier of new energy vehicle (NEV) components, Nanfeng delivers high‑reliability solutions for the evolving mobility market. Our portfolio includes high‑voltage coolant heaters, electronic water pumps, BTMS, electric air compressors, EPS, EHPS, electric air conditioning compressors, three‑way valves, parking heaters, parking air conditioners, plate heat exchangers, and more.

Among our flagship products is the Oil‑Free Scroll Water‑Cooled Air Compressor – designed specifically for new energy buses and trucks to provide clean, quiet, and dependable compressed air for braking, suspension, and other pneumatic systems. This compressor combines the inherent advantages of scroll technology with an active water‑cooling system, addressing the key challenges of oil contamination, noise, and thermal management in heavy‑duty EV applications.

Why oil‑free compressors?

Traditional compressors rely on oil for lubrication and sealing, which risks oil carryover into the compressed air. Nanfeng’s 100% oil‑free design eliminates this risk, delivering absolutely pure air without any oil content. It also prevents oil leakage hazards and removes the need for oil purchase, storage, and disposal – simplifying maintenance and enhancing safety.

Scroll technology for quiet and reliable operation.

At the heart of the compressor is a moving scroll that orbits eccentrically against a fixed scroll, creating a series of crescent‑shaped chambers that progressively shrink to compress air gently. This results in exceptionally low noise and vibration, a simple and robust structure, high reliability even at elevated speeds, and excellent volumetric efficiency especially under high‑pressure conditions.

Active water cooling for stability and long life.

In oil‑free designs, heat generation is a major concern. Nanfeng’s dedicated water‑cooled channels in both the moving and fixed scrolls keep the maximum operating temperature precisely controlled below 120°C, preventing thermal deformation and ensuring long‑term durability.

Designed for modern electric vehicle platforms.

Nanfeng’s oil‑free scroll water‑cooled air compressor is available for 380V AC and 580V AC three‑phase power architectures. It operates at a rated frequency of 50 Hz and is designed to be controlled by the vehicle’s own integrated multi‑function control system (the on‑board “all‑in‑one” controller), simplifying integration and reducing additional components.

With Nanfeng, you gain a proven partner dedicated to clean, efficient, and robust air compression for tomorrow’s commercial electric vehicles.