Atlas Copco ATSL-140 ATSL-165E Oil-Free Scroll Air Compressor Airend
High-performance replacement scroll airend for Atlas Copco oil-free compressors, models ATSL-140 and ATSL-165E. Engineered with precision-machined scroll elements and high-tolerance bearings, this airend ensures continuous oil-free operation, ultra-low noise levels, and stable air output for clean industries.
| Application |
Oil-Free Scroll Air Compressor |
|---|---|
| Material |
Stainless Steel |
The ATSL-140 / ATSL-165E scroll compressor airend is the essential compression module within Atlas Copco’s oil-free scroll air systems. Designed to deliver pure, oil-free air, it operates with high precision and minimal mechanical contact between moving parts—ensuring long-term stability, minimal maintenance, and reliable performance even under continuous operation.
This airend is a direct replacement for the original Atlas Copco components used in ATSL-series scroll compressors. Its design prioritizes quiet operation, low vibration, and zero oil contamination, making it an ideal choice for industries that require clean, high-quality compressed air.
Design and Working Principle
Unlike rotary screw compressors, which rely on intermeshing helical rotors, the scroll airend uses a pair of spiral-shaped scrolls—one fixed and one orbiting—to compress air in a series of crescent-shaped chambers.
- As the orbiting scroll moves, air is drawn into the outer chamber.
- The air pockets are gradually pushed toward the center, reducing their volume and increasing pressure.
- Compressed air is discharged smoothly from the central port without pulsation.
This continuous, contact-free compression process eliminates oil use entirely while maintaining low noise and high energy efficiency. The mechanical simplicity of the scroll structure minimizes wear and reduces the number of moving parts, ensuring long service intervals and consistent air quality.
Material and Construction Features
The scroll elements are manufactured from high-strength aluminum alloy or cast steel, depending on configuration, with surface hard anodizing or special anti-friction coating to resist wear and corrosion. The compression chamber surfaces are precisely machined to micron-level tolerances to prevent leakage and maintain high compression ratios.
The bearing system adopts heavy-duty angular contact bearings that provide excellent axial load resistance and extend the airend’s operating life. The housing is designed for efficient air cooling, allowing stable performance even under extended duty cycles.
For enhanced reliability, sealing components are made from fluororubber (FKM) and PTFE composites, ensuring durability against heat and moisture without contaminating the air path.
Performance Advantages
- 100% Oil-Free Compression: Ensures Class 0 air purity, suitable for clean and critical applications.
- Low Noise & Vibration: Smooth compression without metal contact results in whisper-quiet operation, typically below 55 dB.
- Compact & Lightweight: Scroll technology allows a smaller footprint and easier installation than traditional screw types.
- High Efficiency: Continuous, pulsation-free airflow reduces energy waste and improves process stability.
- Extended Lifespan: Optimized bearing and coating systems ensure durability even under 24/7 workloads.
Precision Manufacturing & Quality Assurance
Every ATSL-series replacement airend undergoes rigorous CNC precision machining, balancing, and dynamic performance testing. Dimensional tolerances are controlled within microns to ensure perfect scroll alignment. Before delivery, each unit is tested under simulated working conditions for air leakage, thermal balance, and flow stability.
All airends are produced under ISO 9001-certified quality systems, with traceable serial numbers and inspection records to guarantee reliability and interchangeability with original Atlas Copco parts.
Compatibility & Installation
This replacement unit is compatible with the following Atlas Copco models and part numbers:
- ATSL-140
- ATSL-165E
It directly replaces the OEM scroll airend without any design modification. The mounting interfaces, air inlet/outlet connections, and drive couplings are dimensionally consistent with the original components. Installation is straightforward and requires only standard tools and procedures.
| Airend/Rotor/Head PN | |||||||
|---|---|---|---|---|---|---|---|
| 1616578982 | 1616578992 | 1616671280 | 1616671290 | 1616740881 | 1616740891 | 1616740980 | 1616740990 |
| 1616714692 | 1616714682 | 1616714683 | 1616714693 | 1616714680 | 1616714690 | 1616725781 | 1616725791 |
| 1616651280 | 1616651283 | 1616725681 | 1616725691 | 1616528850 1616528880 | 1616635681 | 1616635682 | 1616590481 |
| 1616590482 | 1616590483 | 1616734580 | 1616734581 | 1616734591 | 1616734582 | 1616734592 | 1616740881 |
| 1616626081 | 1616738280 | 1616630581 | 1616630582 | 1616692580 | 2236050200 | 2236050100 | 1616710380 1616710390 |
| 1616657583 | 1616657580 | 1616580381 | 1616580382 | 1616646680 | 2989015800 | 1616761280 | 1616761290 |
| 1616646680 | 2989015800 | 1616757580 | 1616757590 | 1616754080 | 1616754090 | 1616585181 | 1616747281 |
If you’re unsure about the model match, contact KINTON for confirmation using your compressor’s serial number or nameplate details.
Typical Applications
The ATSL-140 / ATSL-165E airends are widely used in industries and facilities where clean, quiet, and oil-free compressed air is essential:
- Medical and dental air systems
- Laboratory and analytical equipment
- Electronics manufacturing and semiconductor facilities
- Food and beverage processing lines
- Cleanroom environments and packaging lines
The oil-free scroll design ensures absolute purity, protecting downstream instruments and end products from contamination.
Maintenance Recommendations
Although scroll airends are designed for minimal service needs, proper maintenance ensures continued performance:
- Keep the air intake filter clean to prevent dust accumulation.
- Regularly inspect bearings and seals for wear or noise changes.
- Maintain proper ambient ventilation to support effective air cooling.
- Replace sealing components at recommended intervals to prevent pressure loss.
Following these practices can extend the airend’s operating life and reduce long-term maintenance costs.
Conclusion
The Atlas Copco ATSL-140 / ATSL-165E Oil-Free Scroll Airend represents a blend of precision engineering and reliable clean-air performance. Its advanced scroll design, robust materials, and quiet operation make it ideal for modern oil-free systems that demand both efficiency and purity. Whether used for replacement or system overhaul, this airend delivers the same performance and reliability as the original Atlas Copco component.
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