Rotary Screw Air Compressors

A1 Compressor Warehouse supplies rotary screw air compressors built for the one thing reciprocating compressors can't deliver: continuous, all-day duty. From 7.5 HP units for a busy shop to 250 HP machines running a production floor, we carry the brands industrial buyers specify by name: Schulz and EL-AV stationary units, Atlas Copco portables, and stationary Atlas Copco units quoted on request.

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 equipment and parts requests received before 3 PM ET. We ship nationwide.