Atlas Copco GA37 / GA11 / GA30 / GA45 Screw Air Compressors Fan Assembly
High-performance Fan Assembly for Atlas Copco GA37, GA11, GA30, and GA45 Screw Air Compressors, built with aerodynamic aluminum blades and precision-balanced rotor. Provides efficient cooling, low noise, and long service life — a reliable OEM replacement for GA-series compressors.
| Application |
Screw Air Compressor |
|---|---|
| Material |
Aluminum ,Metal ,Plastic ,Stainless Steel |
This Fan Assembly is designed specifically for Atlas Copco GA series screw air compressors, including models GA37, GA11, GA30, and GA45. As a critical part of the cooling system, it ensures stable air circulation across the compressor’s motor and air end, maintaining an optimal operating temperature and preventing performance loss caused by overheating.
Unlike conventional fan units, this assembly is engineered with high-efficiency aerodynamic blades and a balanced rotor system, providing consistent airflow while minimizing vibration and noise. Its structural precision and dynamic stability ensure long-term reliability even under high ambient temperatures or continuous-duty operation.
Material and Construction
The fan impeller is constructed from reinforced aluminum alloy or high-strength composite material, combining lightweight properties with excellent mechanical strength and corrosion resistance. The hub and motor mount are CNC-machined from durable steel for superior concentricity and load-bearing capability.
Each component undergoes multi-axis balancing and dynamic testing to achieve ISO vibration grade G2.5 or better. The surface is treated with anti-oxidation coating and electrophoretic finish, providing long-lasting protection against heat, oil mist, and humidity inside compressor enclosures.
Installation and Compatibility
This Fan Assembly is a plug-and-play replacement for Atlas Copco GA-series compressors, fitting seamlessly with the motor and radiator structure of GA37, GA11, GA30, and GA45 models. No rewiring or bracket adjustment is required. It can be used for both fixed-speed and variable-speed (VSD) configurations.
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 1613948902 | 1613853201 | 1622010402 | 1622070622 | 1622010302 | 1622348602 | 1625883902 | 1613849101 |
| 1092317700 | 1622393761 | ||||||
Performance and Functionality
- Low Noise Design: The blade pitch angle and shroud structure reduce air turbulence, achieving lower noise levels without compromising airflow.
- Thermal Efficiency: Enhanced heat dissipation keeps the compressor oil and motor temperature stable, extending the lifespan of seals, bearings, and electrical components.
- Precision Fit: Each assembly matches OEM specifications for shaft alignment, motor coupling interface, and mounting dimensions, ensuring direct replacement with no modification required.
Quality Control and Testing
Every Fan Assembly is tested under simulated load conditions equivalent to the GA-series compressor environment. Tests include:
- Airflow and pressure calibration in a wind tunnel setup
- Noise and vibration measurement under variable RPM operation
- Thermal endurance tests up to 120°C ambient conditions
- Dynamic balance testing with electronic precision correction
These strict quality controls guarantee performance consistency and compatibility equal to or exceeding the original Atlas Copco standards.
Maintenance Tips
To maintain cooling efficiency and prevent premature motor wear:
- Regularly inspect the fan blades for dust buildup or imbalance.
- Check bearing lubrication or motor coupling alignment during scheduled service.
- Replace damaged or warped blades immediately to prevent vibration damage.
- Ensure the cooling duct and heat exchanger remain free from obstruction.
Following these guidelines will extend both the fan’s and the compressor’s service life.
MAECENAS IACULIS
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