Used Air Compressors for Sale — Florida & Nationwide

Horsepower is shorthand that hides the real question. What you need is CFM at your required pressure. Add up every air-using device at its duty cycle, add a realistic allowance for leakage — in an older plant that's frequently a large share of total demand — and add headroom for growth. Then set the lowest pressure that satisfies your highest-pressure device, because every extra 2 psi of system pressure costs roughly 1% more energy for as long as you own the machine.

The classic mistake is buying big to be safe. An oversized fixed-speed compressor short-cycles, burns energy running unloaded, and wears itself out faster than a properly matched unit. If your demand swings through the day, a variable-speed drive machine is worth paying more for and usually pays the difference back in energy. Send us your CFM, pressure, and duty cycle and we'll size it properly.

Air leaving a compressor is fully saturated, and in Florida humidity, undried compressed air destroys tools, valves, cylinders, and paint finishes fast. A refrigerated dryer is the minimum for general industrial service; desiccant dryers are required where you need a low dew point or run lines outdoors. Add proper filtration and condensate management and the system lasts.

You also need a receiver tank sized for your demand swings — check the ASME plate and the inspection date on any used tank. Buying the compressor, dryer, tank, and filtration as one package from the same source is nearly always cheaper and always simpler than assembling it from four sellers, and it's how most of our compressor-room equipment comes out of a decommissioning anyway.