NF Group High Pressure Oil-Free Air Compressor 3.0 kW Electric Oil Free Air Compressor 4.0 kW Electric Air Brake Compressor
Electric Oil free Air Compressor Description
In the rapidly evolving landscape of new energy vehicles, the scroll air‑cooled air compressor has emerged as a transformative force.
As a rotary positive‑displacement machine, it harnesses two precision‑machined spiral elements – a fixed scroll and an orbiting scroll driven by an eccentric motor motion. This ingenious design forms crescent‑shaped chambers that progressively shrink in volume, delivering a continuous, pulsation‑free high‑pressure air stream – making it an ideal candidate for critical roles such as an electric air brake compressor and an oil‑free air brake compressor in commercial fleets.
What truly distinguishes this technology is its air‑cooled architecture, which relies on forced convection via a built‑in fan or an external radiator – a simple, robust, and maintenance‑friendly cooling solution. Yet the real game‑changer is its oil‑free operation. As an electric oil free air compressor (or oil free electric air compressor), it guarantees 100% purity, meeting ISO 8573‑1 Class 0 standards and eliminating any risk of oil contamination in sensitive pneumatic systems.
The performance advantages are striking. With no suction valves or clearance volume, volumetric efficiency is outstanding, achieving energy savings of over 30% compared to traditional piston compressors. The smooth rotary motion eliminates reciprocating shocks, reducing noise levels to as low as 67 dB(A) – a critical benefit for electric vehicles where cabin quietness is paramount. Fewer moving parts translate into minimal vibration, exceptional reliability, and an extended service life, while the compact, lightweight construction (some models weigh only 44 kg) facilitates seamless chassis integration.
This versatility makes it the preferred choice across diverse applications. It serves reliably as an electric air compressor for truck, an electric air compressor for service truck, and an electric bus air compressor, providing oil‑free compressed air for pneumatic braking, air suspension, and air‑operated doors. Beyond the automotive arena, it proves indispensable in medical ventilators, oxygen concentrators, and emerging fields such as rail transit, data centre cooling, and energy storage thermal management.
At the forefront of this innovation stands Hebei Nanfeng Automobile Equipment (Group) Co., Ltd. – a key supplier in China’s NEV component industry and a designated supplier for Chinese military vehicles. Nanfeng’s oil‑free scroll compressors are powered by permanent‑magnet synchronous motors with efficiency ≥91%, supporting variable‑frequency control for on‑demand air supply. Offering a comprehensive range of voltage and power configurations, Nanfeng’s solutions are already widely adopted in electric vehicle thermal management and braking systems, propelling the industry toward a cleaner, more efficient future.
Electric Oil free Air Compressor Technical Parameter
| Product Name | Oil-free air pump | Product Model | NFMX3.7 |
| Displacement | 380L/min | Air pump starting pressure | 8 bar |
| Rated speed | 2800rpm | Air pump shutdown pressure | 10 bar |
| Rated power | 3.7 KW(7bar时） | Safe room takeoff pressure | 12 bar |
| Noise (at a distance of 1m) | ≤75 dB | Volumetric efficiency | ≥90% |
| Host cooling method | Forced cooling by fan | Operating ambient temperature | -40℃ 60℃ |
| Main motor power | 4 KW | Motor cooling methods | Natural cooling |
| Main motor frequency constant torque | 12.2 N·m | Motor type | Permanent magnet motor (synchronous or brushless DC) |
| Main motor peak speed | 3000rpm | Number of poles of main motor | 12 |
| Main motor peak power | 8.0KW (duration 2min) | Motor rated voltage | AC380V |
| Main motor peak torque | 30.5Nm | Insulation class | H-class |
| D-axis inductance (mH) | 5.56±10% | Q-axis inductance (mH) | 6.54±10% |
| Back electromotive force (V/Krpm) | 125V | Phase resistance (Ω) | 0.86±10% |
| Rated current | 7.3A | Motor protection level | IP67 |
| Work system | S2(30min) | Service coefficient | 1.2 |
| External dimensions | L528mmxH352mmxW358mm | Total mass (kg) | 35 |
Electric Oil free Air Compressor Package And Delivery
Why Choose Our Electric Oil free Air Compressor
Hebei Nanfeng Automobile Equipment (Group) Co., Ltd., founded in 1993, is a leading Chinese manufacturer of vehicle thermal management systems. The group comprises six specialized factories and one international trading company, and is recognized as the largest domestic supplier of heating and cooling solutions for vehicles.
As an officially designated supplier for Chinese military vehicles, Nanfeng leverages strong R&D and manufacturing capabilities to deliver a comprehensive product portfolio, including:
High-voltage coolant heaters
Electronic water pumps
Plate heat exchangers
Parking heaters & air conditioning systems
We support global OEMs with reliable, high-performance components tailored for commercial and specialty vehicles.
Our factory's production units are equipped with high tech machineries,strict quality control testing devices and a team of professional technicians and engineers endorsing the quality and authenticity of our products.
In 2006,our company has passed ISO/TS 16949:2002 quality management system certification.We also bagged the CE certificate and E-mark certificate making us among the only few companies in the world acquiring such high level certifications.Currently being the largest stakeholders in China,we hold a domestic market share of 40% and then we export them around the globe particularly in Asia,Europe and Americas.
Meeting the standards and demands of our customers have always been our top priority.It always encourages our experts to continuously brain storm,innovate,design and manufacture new products,impeccably suitable for the Chinese market and our customers from every nook of the world.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 100% in advance.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q4. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit.
A lot of customer feedback says it works well.
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
