Rotary Screw Air Compressors

A1 Compressor Warehouse stocks rotary screw air compressors built for the one thing reciprocating compressors can't deliver: continuous, all-day duty. From compact 5 HP units for a busy shop to 250+ HP variable-speed systems running a production floor, we carry the brands industrial buyers specify by name — Atlas Copco, Schulz, and EL-AV.

Rotary screw technology is the workhorse of industrial compressed air. Two intermeshing rotors compress air smoothly and continuously, with none of the heat buildup, vibration, or duty-cycle limits of piston compressors. The result is consistent pressure, lower noise, and a machine engineered to run 24/7 for years. For any operation where the compressor can't stop, this is the design that earns its keep.

Choosing between fixed-speed and variable-speed (VSD) comes down to how your air demand behaves. Fixed-speed units are the value pick for steady, predictable loads. VSD models match motor speed to real-time demand and can cut energy costs dramatically in facilities where air usage rises and falls through the day — often paying back the difference within a couple of years.

Every compressor we sell is genuine OEM equipment through an authorized distributor: full manufacturer warranty, factory parts, no gray-market risk. Not sure on CFM, pressure, or phase? Use our sizing tool or talk to a specialist for a free, no-obligation consult — with same-day quotes on in-stock equipment shipped nationwide.