Air Compressor Atlas Copco Spare Part Cooling Fan Motor YWF(K)166-4D90
The Atlas Copco Fan Motor YWF(K)166-4D90 / MK165-6DK is a precision-built cooling motor designed specifically for Atlas Copco screw air compressors. Engineered for continuous-duty environments, it ensures reliable airflow, optimal heat dissipation, and consistent compressor efficiency even under demanding operating conditions. Each motor is tested for vibration balance, insulation performance, and airflow stability, ensuring dependable operation and long service life.
| Application |
Screw Air Compressor |
|---|---|
| Material |
Aluminum ,Metal ,Plastic ,Stainless Steel |
In air compressors, maintaining a stable operating temperature is critical to extending the lifespan of the air end, lubricating oil, and other internal components. The YWF(K)166-4D90 and MK165-6DK fan motors are high-efficiency axial and centrifugal types respectively, built to drive the cooling fans responsible for heat exchange across the oil cooler and aftercooler.
Their compact design, low noise level, and energy-efficient performance make them ideal for OEM replacement or system upgrades within the Atlas Copco GA, GX, and GR series compressors.
Technical Highlights
- Model YWF(K)166-4D90:
Features a 4-pole asynchronous motor design with stable rotation speed and high static pressure capability, suitable for axial-flow fan assemblies. Compact size ensures easy integration within confined compressor housings. - Model MK165-6DK:
Equipped with a 6-pole configuration for lower noise and smoother rotation, making it ideal for cooling systems requiring prolonged operation and balanced airflow performance. - Voltage & Frequency:
Typically available in 220V–240V / 50–60Hz or 380V three-phase configurations (customizable upon request). - Insulation Class: F or higher, designed for high-temperature environments.
- Protection Grade: IP54–IP55, providing resistance to dust and oil mist exposure commonly found in compressor chambers.
- Cooling Direction: Forward airflow (can be customized to reverse upon installation).
Application & Compatibility
The YWF(K)166-4D90 and MK165-6DK fan motors are widely compatible with multiple Atlas Copco screw compressor series, including:
- GA30 / GA37 / GA45 / GA55 / GA75
- GX11 / GX15 / GX18
- GR110–GR160 industrial units
They are also suitable for equivalent cooling systems in other OEM compressor assemblies that share identical installation dimensions and airflow requirements.
| Motor PN | |||||||
|---|---|---|---|---|---|---|---|
| 1092090180 | 1080425323 | 1092091622 | 1092090481 | 1092125100 | 1092091622 | 1092091605 | 1092091605 |
| YWF(K)166-4D90 MK165-6DK.24.U |
YWF(K)137-6D75 | YWF(K)137-4D75 | VT66336-01A | MK165-6DK.18.N YWF(K)166-6D90-E03 |
YWF(K)137-4D75 MK137.4DK.10.U |
MK137-4DK.10.N | |
Structural & Material Advantages
- Precision Bearing System:
High-grade ball bearings ensure quiet operation, low friction, and extended lifespan even under continuous high-speed use. - Aluminum Alloy Housing:
Offers strong corrosion resistance and excellent thermal conductivity, maintaining optimal performance even at elevated temperatures. - Dynamic Balancing:
Each rotor and impeller assembly is dynamically balanced before final testing to minimize vibration and noise. - Thermal Protection:
Integrated overload and thermal protection prevents overheating and extends operational reliability.
Quality Control & Testing Process
Each fan motor undergoes rigorous factory inspection, including:
- Electrical insulation resistance testing
- Vibration and noise level analysis
- Dynamic balance calibration
- Continuous thermal load testing
- Final performance verification for airflow rate and current draw
All products comply with IEC standards and Atlas Copco replacement requirements, ensuring reliable integration with existing compressor systems.
Maintenance & Operation Tips
- Check air passages and fan blades regularly to prevent dust accumulation.
- Ensure proper rotation direction when wiring and installing to maintain correct airflow.
- Avoid voltage fluctuations exceeding ±10% to prevent winding damage.
- Inspect bearings and insulation periodically during scheduled compressor maintenance.
MAECENAS IACULIS
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