Fan Assembly fit Atlas Copco GA90 Screw Air Compressor
Premium Fan Assembly for Atlas Copco GA90 Screw Air Compressor, engineered for superior cooling efficiency, low noise, and long service life. Built from reinforced aluminum alloy with precision-balanced blades, it ensures stable thermal performance for heavy-duty compressor systems.
| Application |
Screw Air Compressor |
|---|---|
| Material |
Aluminum ,Metal ,Plastic ,Stainless Steel |
The Fan Assembly for Atlas Copco GA90 is a precision-engineered cooling unit designed to handle the intense thermal output of large industrial screw air compressors. In the GA90 system, this fan plays a crucial role in maintaining oil temperature stability and ensuring optimal compressor performance during continuous, high-demand operation.
Unlike smaller GA-series units, the GA90’s fan assembly operates under higher load and airflow requirements. This version is built with a reinforced impeller structure, high-torque motor coupling, and optimized ventilation path that supports consistent cooling in demanding environments such as manufacturing plants, mining operations, and heavy-duty workshops.
Material and Structural Design
To withstand the high rotational speed and continuous operation of the GA90 system, the fan assembly is manufactured from precision-balanced aluminum alloy or glass-fiber-reinforced composite. These materials deliver superior rigidity while keeping rotational inertia low, ensuring stable operation even at high RPM.
The hub and support flange are machined from hardened steel using CNC precision equipment to guarantee perfect concentric alignment with the compressor shaft. The surface receives multi-layer powder coating and anti-corrosion treatment, which provides exceptional protection against moisture, oil vapor, and temperature fluctuations within the compressor enclosure.
Key design features include:
- Reinforced hub connection with vibration-damping rubber coupling
- Wide-pitch aerodynamic blades for higher static pressure and airflow
- Anti-fatigue blade root geometry tested for over 20,000 start/stop cycles
- Enhanced thermal balance to minimize shaft stress and bearing load
Cooling Performance and Efficiency
The GA90 Fan Assembly is designed to meet high-volume cooling requirements for oil-cooled screw compressors.
- Temperature Stability: Maintains consistent oil and motor temperatures even under 100% duty cycles.
- Energy Efficiency: Reduced aerodynamic drag results in lower power consumption, supporting compressor energy-saving targets.
- Reduced Noise Level: Advanced fan geometry and balanced rotation minimize noise while maintaining steady cooling output.
The result is a cooling solution capable of extending the lifespan of bearings, rotors, and seals by maintaining precise thermal equilibrium during prolonged operation.
Testing and Quality Assurance
Every GA90 fan assembly undergoes strict multi-stage inspection before shipment:
- Dynamic Balance Testing: Verified under operating RPM to ensure vibration grade ≤ G2.5.
- Thermal Simulation Testing: Fan subjected to hot-air flow environments up to 120°C.
- Noise Measurement: Acoustic testing conducted at full load to meet industrial dB standards.
- Endurance Verification: Continuous 1,000-hour durability run to assess material fatigue resistance.
These tests guarantee reliability and mechanical stability equal to or exceeding Atlas Copco’s OEM standards.
OEM Reference and Applications
- Applicable Model: Atlas Copco GA90
- Part Type: Fan Assembly (Cooling System Component)
- Function: Air Circulation & Heat Dissipation
- OEM Standard: Direct Replacement for Atlas Copco Original Design
This unit is suitable for industrial air systems, continuous production lines, and heavy-duty compressor installations where reliability and thermal control are mission-critical.
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 1613948902 | 1613853201 | 1622010402 | 1622070622 | 1622010302 | 1622348602 | 1625883902 | 1613849101 |
| 1092317700 | 1622393761 | ||||||
Installation and Compatibility
This Fan Assembly is a direct replacement for the original Atlas Copco GA90 unit. It is designed for both standard and VSD (Variable Speed Drive) configurations, supporting exact fitment to the cooling frame and motor shaft without modification.
Installation Tips:
- Always ensure correct rotational direction to maintain airflow efficiency.
- Inspect couplings and fasteners for proper alignment before startup.
- Avoid contact with the shroud or guard to prevent imbalance during operation.
MAECENAS IACULIS
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