Why are oil-free screw compressors important?

Oil-free screw compressors are vital for industries needing clean, contamination-free air. This guide explains their importance, working principles, cooling techniques, and benefits, ensuring optimal performance in applications with stringent air purity requirements. Contact us!

Which rotary screw compressor is best for oil-free air?

Atlas Copco is renowned for designing and manufacturing some of the most durable oil-free screw compressors. The ZR high-end rotary screw compressor comes out of this strong tradition. Ideal for industries where high-quality oil-free air is key, the ZR offers the highest reliability and safety in combination with low energy costs.

What is an oil free screw compressor?

Oil-Free Screw Compressors: Uses what is called synchronised timing gears, the gears ensure that the screws rotate without making direct contact with each other, removing the need for oil lubrication. This helps keep the compressed air clean and reduces maintenance complexity.

How do oil-free screw compressors work?

The solution is multi-stage compression. Instead of compressing the air in a single step, oil-free screw compressors use multiple compression stages. The air is cooled between each stage, preventing excessive temperature buildup and ensuring efficient operation.

What is a ZR rotary screw compressor?

The ZR high-end rotary screw compressor comes out of this strong tradition. Ideal for industries where high-quality oil-free air is key, the ZR offers the highest reliability and safety in combination with low energy costs. Clean, dry, high-quality air (Class 0) is essential, produced with optimal energy eficiency.

Do screw compressors need oil?

A key challenge for oil-free screw compressors is managing the heat generated during compression. In oil-injected compressors, oil acts as both a lubricant and coolant, but this option isn't available in oil-free designs. Without oil for cooling, temperatures can rise quickly.