Oil-free screw air compressors are screw air compressors without oil in the lubrication chamber. They use oil-free technology to produce pollution-free compressed air and are suitable for industries such as food and pharmaceuticals. They are designed to be energy-efficient and have the characteristics of low operating noise, low maintenance costs, long life, and stable and reliable. Oil-free screw air compressors can meet the needs of various industrial applications for high-quality, pure compressed air. Olymtech offers a comprehensive range of oil-free screw air compressors with both fixed speed and variable frequency drive.
 

Olymtech's oil free screw air compressor

Oil free variable speed screw air compressor: uses the screw compression principle and is equipped with a variable speed drive (usually a frequency converter) to adjust the compressor speed. Unlike traditional oil-lubricated screw compressors, oil-free screw air compressors do not require any lubricating oil to reduce friction, avoid oil contamination in the air, and provide pure air.

Oil free fixed-speed screw air compressor: An air compressor using oil-free screw technology, whose drive motor runs at a fixed speed and does not adjust according to the air volume demand. It does not use lubricating oil to ensure that the compressed air is not contaminated and is used in places where clean, oil-free air is required.

Features of Oil Free Screw Air Compressor

1. Quality Control:
Raw material inspection at the source to eliminate potential risks.
100% operator self-inspection during assembly, including quality process sampling.
100% shipment inspection before packaging, with daily spot checks by quality engineers and bi-weekly team product reviews.

2. Zero Pollution Risk:
TÜV Oil-Free Certification ensures a sealed, lubricated, and cooled air-end using pure water, eliminating lubrication pollution risks.
Compressed air-ends and air pipelines are made of stainless steel, eliminating corrosion pollution risks.

3. High Efficiency:
Low consumption design with excellent water cooling capacity, achieving an isothermal compression process.
Approximately 10% more air produced by recovering compression heat waste.
The expansion coefficient of cryogenic compressed air reduces component pressure, extending service life.

4. Low Maintenance Cost:
Water filter: 1000-hour replacement cycle.
Air filter: 2000-hour replacement cycle.
Motor grease: 2000-hour replacement cycle.
Water waste: approximately 40L every 50 hours (37kW).
Overhaul cost is approximately 10% of the whole compressor value (for star wheel and bearing replacement).

5. Low Noise:
Operates with lower noise compared to other oil-free technologies, no vibration, and no need for an installation base.
Other oil-free technologies can be noisy and have high vibration values, and some may require an installation base.

6. Stability:
Uniform air-end force extends the air-end service life.
Air-end speed does not exceed 3600 RPM/min.
Low operating temperature ≤60°C.
Easy to install, no need for exhaust ducts, and no additional oil removal equipment required.

7. High-Quality Spare Parts:
Controller & Inverter: Support remote start and stop/operation signal/fault signal/warning signal, with real-time power consumption and cumulative power consumption measurement. Timing start and stop function selection, timing pressure function selection. 2pcs RS485 communication port, can control any inverter supporting MODBUS RTU protocol, offering a more flexible choice.
Motor protection function: phase loss, overload, unbalance, overvoltage, and undervoltage. Highly integrated, highly reliable, and cost-effective.
Motor: Fixed speed motor (IE2 efficiency level, IP54 protection level) or Permanent Magnet VSD motor (IE3 efficiency level, IP55 protection level).
Electrical Components: Schneider or Siemens electrical components, standardized design, safe and reliable.
Danfoss Solenoid Valve: More sensitive, safe, and reliable.
Donaldson Filter Element: A leader in the filtration industry, with a filtration efficiency of 99.9%.

8. Pre-Sale Consultation and After-Sales Service:
Comprehensive support before and after purchase, ensuring a seamless experience for customers throughout the entire process.