Component Composition and Types
Depending on the model, the cooler kit usually includes:
Cooler core:
Oil cooler: Used to cool the lubricating oil of the compressor. It is mostly in tubular or plate structure, and the material is copper, aluminum or stainless steel (corrosion-resistant models).
Air cooler: Used to cool the high-temperature air after compression. Commonly found in oil-free machines or secondary compression models.
Sealing and connection components:
Gasket, O-ring (oil-resistant, high-temperature-resistant material), ensuring the sealing of the cooler and the machine body.
Connectors, bolts, etc. for the inlet and outlet oil / air interfaces.
Auxiliary components:
Cooler end cover (for some models), dust filter (for air-cooled models).
Tools for installing the sealing ring or locating pins (to ensure installation accuracy).
Compatible models and core functions
Compatibility range: Covers GA series (such as GA11-GA550), GX/G series and other mainstream screw air compressors. The size and heat dissipation area of the cooler vary for different power models (for example, small machines mostly use air cooling, while large machines can choose water cooling).
Core functions:
Control the lubricating oil temperature within 80-95℃ (to avoid oil deterioration or emulsification).
Reduce the temperature of compressed air (air-cooled models usually lower the exhaust temperature to the ambient temperature + 10-15℃).
Ensure that the main unit, motor and other components operate within a reasonable temperature range, extending the equipment lifespan.
Advantages of original factory parts
Precise matching: Designed according to specific models, the cooling area, flow channel structure and heat load of the air compressor are fully compatible, ensuring the thermal efficiency meets the standard.
Material guarantee:
Cooling tubes use high thermal conductivity materials (such as purple copper, high-efficiency aluminum alloy), and the spacing of the heat sinks is optimized to enhance heat transfer efficiency.
Sealing parts use oil-resistant and high-temperature-resistant rubber (such as fluororubber), suitable for long-term high-temperature and high-pressure environments.
High durability: Tested for pressure resistance (usually ≥ 1.5 times the working pressure) and corrosion resistance, with a lifespan of up to 8000-15000 hours (depending on the working conditions).
High safety: Complies with Atlas Copco's safety standards, avoiding oil loss or system contamination due to cooler leakage.
Replacement timing and maintenance suggestions
Replacement signals:
Continuous high oil temperature / exhaust temperature (more than the normal range by 5℃ or more), and no improvement after cleaning.
Leakage of the cooler core (oil / water mixture, compressed air with oil or water leakage).
Severe blockage, deformation or corrosion of the heat sink (for air-cooled models), unable to restore performance through cleaning.
Equipment operation exceeds 10 years or the cooling efficiency drops by more than 30% (confirmed through professional testing).
