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Oil-free Scroll Air Compressor For EV
The oil-free scroll air compressor is an advanced air compression device that is oil-free, clean, efficient, and low-noise. It compresses air by meshing and rotating dynamic and static scrolls, requiring no lubrication throughout the process. It can output Class 0 oil-free clean air, making it suitable for scenarios with extremely high air quality requirements.
Description
If you're looking for the oil-free scroll air compressor for ev, welcome to wholesale the product from our factory. As one of the leading manufacturers and suppliers in China, we will offer you the best service and fast delivery. Now, check the quotation with our seller.
Oil-Free Scroll Air Compressor For EV
Products Description
The oil-free scroll air compressor is a positive displacement compressor that uses oil-free meshing and non-contact scroll compression. Its core advantage is that it outputs Class 0 oil-free clean air. It also features low noise, low vibration, high reliability, and easy maintenance. It is widely used in medical, food, electronic,s and other scenarios with strict requirements for air purity.
technical Parameters
| The compression medium | Air | |
| Working pressure | Suction pressure | Atmospheric pressure |
| Discharge pressure | 0~12.5Mpa | |
| Power to flow ratio | ≤12(including motor and controller) | |
| Temperature | Temperature | -40℃~+65℃ |
| Suction temperature | -40℃~+65℃ | |
| Discharge temperature | ≤90℃+Ambient temperature(Water cooling) | |
Basic parameter
| Compressor style | Oil-free scroll air compressor |
| The compression medium | Air |
| Normal speed | 1800-3200rpm |
| Power supply voltage | 380VAC Three-phase |
| Compressor cooling method | Forced water cooling |
| Weight | 44kg(including motor and controller) |
| Shell | Electroplating on aluminum parts |
| Installation method | Bolt connection |
| Installation size | Drawing 4 - M10 mounting position and motor metal waterproof connector |
| Outline dimension | 334*300*354 |
| Suction pipe inner size | Outer diameter Φ25 |
| Exhaust pipe inner size | Φ25 M22*1.5 Compression fitting |
| Hydraulic pressure of coolant | ＜1bar |
| External coolant flow rate | ≥10L/min |
| Coolant inlet temperature | ≤65℃ |
Compressor Performance Curve
Core working principle
Two involute scrolls, a stationary scroll, and a moving scroll, mesh with staggered teeth. The moving scroll, driven eccentrically, performs planar rotational motion (without self-rotation), maintaining a micrometer-level gap between the two without contact throughout the process. Air enters the intake port on the outer periphery of the scrolls through an intake filter and is sealed into multiple crescent-shaped closed compression chambers as the moving scrolls move. These compression chambers move towards the center of the scrolls, gradually decreasing in volume, continuously compressing the air. Finally, the high-pressure air is discharged from the exhaust port at the center of the stationary scroll, completing a continuous unidirectional process of "intake – compression – exhaust".
The key to the oil-free design is that no lubricating oil is involved in the compression chambers. Precision machining ensures a tight seal, and self-compensating end-face seals and wear-resistant coatings achieve frictionless and oil-free operation.
Products Details
Core advantages
Oil-Free Scroll Air Compressor: Core Advantages
Ultimate Cleanliness: The compression process is oil-free, and the output air meets the ISO 8573-1 Class 0 oil-free standard, eliminating the need for post-treatment oil removal and reducing downstream filtration costs.
Low Noise and Vibration: Smooth rotary motion without reciprocating impact; overall noise level is 53–65 dB(A), suitable for indoor and medical environments.
High Efficiency and Reliability: Fewer moving parts, no contact wear; only seals are vulnerable, resulting in long maintenance cycles and low costs; volumetric efficiency under partial load is superior to reciprocating and screw compressors.
Flexible Control: Adaptable to variable frequency drive (VFD), with a wide flow adjustment range; outstanding energy efficiency under partial load, resulting in significant energy savings.
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Selection and Considerations
1. Pressure and Flow Rate: Mainstream operating pressure 7–10 bar, flow rate range 1.9–7.6 m³/min (mainly small units), match operating conditions as needed.
2. Cooling Method: Air cooling for light indoor loads; water cooling for continuous high loads or high-temperature environments.
3. Variable Frequency Configuration: Variable frequency models are recommended for frequent load changes to reduce energy consumption and start-stop impact.
4. Installation and Maintenance: Ventilation space is provided; regular replacement of the intake filter and seals is required; no complex oil circuit maintenance is needed.
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