Screw air compressors have played a transformative role in the industrial world, offering a powerful solution for delivering consistent, reliable, and efficient compressed air. From their conceptual beginnings in the 19th century to their wide-scale commercial applications today, rotary screw air compressors have evolved through decades of technological innovation, meeting the growing demands of industries that require high performance and energy efficiency.

In modern air technology, maintaining air quality is critical—especially in industries where oil contamination can ruin products, compromise safety, or fail to meet strict quality standards. That’s where oil-free screw air compressors come in. But many ask: Why can oil-free screw air compressors work "without oil"? Let’s dive into the technology and applications that make it possible.

A screw air compressor is a type of rotary compressor that uses two helical screws—also known as rotors—to compress air. Unlike piston compressors, screw compressors provide a continuous flow of compressed air, which makes them ideal for industrial applications where uninterrupted operation is critical.