20 HP Air Compressors for Sale

A 20 HP air compressor is an industrial power tier for sustained, high-volume air demand across production floors and larger facilities. This category serves plant and shop buyers matching motor power to multi-tool or heavier workloads, while still confirming delivered CFM, working PSI, tank size, and electrical service so the compressor keeps pace.

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What 20 HP Means For Compressor Buyers

A 20 HP air compressor sits in the industrial power class, built to supply steady, heavier air demand rather than intermittent shop work. Horsepower describes the motor's power class, not the compressor's usable air output, so the figures that decide fit are delivered CFM at your working PSI, tank size, and duty cycle. Compare CFM at the pressure your tools actually use rather than sizing by motor power alone, since designs at this power class differ in airflow.

Matching 20 HP To Shop Demand

This power class often suits production shops, fabrication floors, and facilities running multiple continuous-demand tools or several users at once. A plant feeding many stations through the working day, or supplying a sustained process load, is a reasonable scenario for this size. Machines at this tier are generally three phase and represent a significant electrical and installation commitment, so the workload should clearly justify it over a smaller unit.

Power And Air Delivery Checks Before Buying

Delivered CFM at the working PSI your tools require, not the motor size alone
The PSI your tools or process actually need
Tank size for reserve air, cycling, and runtime pattern
Duty cycle and continuous-use needs across all tools and users. Two stage piston units have a max duty cycle of 60 - 75%.
Voltage and phase requirements, which are typically stricter at this power class
Available space and installation requirements for a unit this size

Compare Nearby Horsepower Options

If your demand is below this level, a 15 HP air compressor may cover it at lower electrical and installation cost. If total demand keeps climbing higher, compare the 25 HP and 30 HP air compressors for added capacity. Match the level to your measured airflow demand rather than moving up on horsepower alone.

Frequently Asked Questions

What can a 20 HP air compressor run?
It commonly supports multiple continuous-demand tools or a sustained process load at once, though exact compatibility depends on combined CFM demand at your working pressure. Total your airflow needs and compare against delivered CFM before ordering.

Does a 20 HP air compressor need three phase power?
Machines at this power class are generally three phase with stricter electrical requirements, so confirm voltage and phase against your service before ordering. See three phase air compressors and consult a licensed electrician about your installation.

Should I choose 20 HP or step up to 25 HP?
Check your total air demand and decide which fits your needs.

Shop 20 HP Air Compressors At CompressorPros

CompressorPros carries 20 HP air compressors for sustained, high-volume industrial air demand. Browse Shop by HP to compare power tiers and match motor power to your workload. All orders ship free, direct from manufacturer partners.

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20 HP

Industrial Gold R203ENC6-CDR 20 HP 460 Three Phase Rotary Screw Air Compressor with Dryer

Schulz 20120HWV80X-3 20 HP 460 Volt Two Stage 120 Gallon Air Compressor

Amico AE-SCR-20-463-FS 20 HP Enclosed Oil Free Scroll Air Compressor

AMICO IE-RSL-20-463-FS 20 HP 3 Phase Base Mount Rotary Screw Air Compressor

Elgi EN15-125 20 HP 208/230/460 Volt Three Phase Rotary Screw Air Compressor Base Mount - 125 psi

Elgi EN15-125-120T-A2 20 HP 208/230/460 Volt Three Phase Rotary Screw Air Compressor 120 Gallon Horizontal Tank Mount - 125 psi

Elgi EN15-125-120T-G2 20 HP 208/230/460 Volt Three Phase Rotary Screw Air Compressor 120 Gallon Horizontal Tank Mount with Dryer- 125 psi

Elgi EN15-150-120T-A2 20 HP 208/230/460 Volt Three Phase Rotary Screw Air Compressor Compressor 120 Gallon Horizontal Tank Mount - 150 psi

Elgi EN15-150-120T-G2 20 HP 208/230/460 Volt Three Phase Rotary Screw Air Compressor 120 Gallon Horizontal Tank Mount with Dryer- 150 psi

Elgi GP35FP Honda Engine Driven 35 CFM Portable Rotary Screw Air Compressor

EMAX ERI0200003 20 HP 208/230/460 Volt Three Phase Economy Base Mount Rotary Screw Air Compressor

EMAX ERIK020003-460 20 HP 460 Volt Three Phase Rotary Screw Air Compressor with Dryer