Stationary Air Compressors

About Stationary Air Compressors

Stationary air compressors are the backbone of any serious shop or garage. Unlike portable units, these floor-standing machines are sized for sustained, high-demand work: running sanders, spray guns, impact wrenches, and air-hungry production tools without the recovery delays that small portables impose. The models on this page range from a 20-gallon single-stage unit at $1,406.24 up to a 7.5 HP two-stage industrial compressor at $3,499.99, covering the span from a dedicated hobby shop to a light industrial facility. The dominant brands here are Ingersoll Rand and DEWALT, both long-trusted names in stationary compressed air. Ingersoll Rand's lineup runs from the compact P1.5IU-A9 (20-gallon, 115V, Corded Electric, 90.7 kg) through the SS3L3 (3 HP, 60-gallon, single-stage, 230V single-phase) and up to the heavy-duty 2475N7.5 (7.5 HP, two-stage). DEWALT fields two large-tank options: a 60-gallon 5 HP oil-lubricated vertical and an 80-gallon two-stage vertical. The AZOB2K OB2-WHITE 200PSI unit anchors the budget end at $359.99 for lighter-duty applications. Choosing the right stationary compressor comes down to four things: tank size, motor horsepower, compressor stage count, and voltage requirements. A 20-gallon single-stage fits a small finishing shop or a standard 115V garage; a 60 to 80-gallon two-stage handles sustained production work or multiple tool drops simultaneously. Single-stage compressors are simpler and cost less; two-stage models compress air in two successive steps for higher CFM efficiency and sustained pressure under heavy cycling. Check your shop's circuit capacity early: the 230V single-phase models require a dedicated outlet, while the 115V Ingersoll P1.5IU-A9 can run on a standard 20-amp circuit.