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How Much Does a Rotary-Screw Compressor Cost?
Used stationary rotary-screw compressors typically cost $2,000 to $4,500 for 30-50 hp units, with larger horsepower costing more.
Rotary-screw compressors are the standard for shops and plants that need steady air all day. For a stationary electric unit, horsepower and duty rating set the price far more than appearance. The ranges below reflect inspected used machines from Ingersoll Rand, Atlas Copco, Kaeser, Sullair, and CompAir.
Price by type
| Type | Typical price | Notes |
|---|---|---|
| 30 hp stationary screw | $2,000–$3,200 | Entry-level continuous-duty air for a small shop. |
| 40 hp stationary screw | $2,600–$3,800 | A common mid-size workhorse for fabrication and service bays. |
| 50 hp stationary screw | $3,200–$4,500 | Higher output for busy plants and multi-station tool use. |
| Variable-speed or low-hour units | $4,000–$4,500+ | VSD drives and low hours add a premium; larger hp quoted individually. |
What affects the price
Horsepower
The dominant price driver. Each step from 30 to 40 to 50 hp raises both output and cost.
Fixed vs variable speed
Variable-speed-drive units cost more but can cut energy use sharply where air demand swings.
Operating hours and maintenance
Documented filter, separator, and oil service protects the air-end and supports a higher price.
Tank-mount vs base-mount
Some units arrive with an integral receiver tank and dryer, which adds value versus a bare base-mount screw.
Voltage and phase
Three-phase requirements and voltage must match your shop; the right electrical fit affects practical value.
Bottom line
Most shops land a solid 40 hp used screw in the $2,600 to $3,800 range, which covers continuous-duty air for a busy service floor. Confirm your voltage, phase, and peak cfm demand first, then weigh fixed versus variable speed against your run hours. We can quote current units with hours and included accessories.
Shop stationary compressorsCost FAQs
How long do rotary-screw compressors last?
The air-end on an industrial screw is commonly rated for 40,000 hours or more with proper maintenance, so a well-kept used unit has plenty of service life remaining.
Do I need a variable-speed drive?
A VSD pays off when your air demand varies through the day, since the motor slows during light use. For steady, near-constant demand a fixed-speed unit is often the better value.
Does a rotary-screw compressor include a tank?
Some do and some do not. Base-mount units supply air to a separate receiver, while tank-mount packages include the receiver. We note the configuration on each listing.
Prices shown are item prices from PowerHouse Equipment; freight delivery is quoted to your ZIP at checkout.