60 HP air compressors: 250 to 320 CFM from a single machine

60 HP is the top of what this store sells as a standard stocked rotary screw; above it the Chicago Pneumatic CPI and CPV lines at 75 to 120 HP are built to order. A 60 HP screw delivers 248 to 321 CFM at 100 to 175 PSI, which is plant air for a large manufacturing operation: an automotive supplier stamping and welding line, a corrugated box plant, a large aggregate or ready mix operation, a shipyard blast and paint shop, or a food plant with pneumatic conveying. Every machine here is three phase 460 volt and most ship base mounted for a compressor room.

What is on this page

Fixed speed rotary screw: Chicago Pneumatic CPCg 60 gear drive at 263 CFM in 100, 125, 150 and 175 PSI builds, offered with or without the factory integrated refrigerated dryer. Variable speed: Chicago Pneumatic CPV 60 VS PM permanent magnet motor at 321 CFM and 125 PSI, Chicago Pneumatic CPVSM 60 at 263 CFM, and Quincy QGSV-60 at 248 CFM and 125 PSI, base mounted with or without a dryer. Duplex piston: Champion Duplex R-Series 60 HP (two 30 HP pumps) at 175 PSI for plants that require piston redundancy. Oil free scroll: Chicago Pneumatic COAIRE CSOF-S 60, a multi scroll cabinet for oil free air at this volume.

Permanent magnet variable speed

The CPV VS PM is the standout at 60 HP. A permanent magnet motor coupled directly to the airend removes the gearbox and the induction motor losses, so it delivers the highest CFM per horsepower on this page (321 CFM from 60 HP at 125 PSI) and holds its efficiency when turned down. For a plant whose demand moves through the day it will usually show the lowest total cost over ten years. The CPCg fixed speed unit is the right choice as a base load machine running near full output, and it costs less to buy. The CPVSM sits between the two on both price and efficiency.

Power, receiver, dryer and installation

Expect 77 amps at 460 volt three phase (154 amps at 230 volt, which is rarely specified at this size). Use a 660 gallon or larger receiver, or two 400 gallon tanks as wet and dry receivers. Size the refrigerated air dryer at 300 to 350 CFM unless the CPCg dryer package is chosen, fit an aftercooler ahead of any standalone dryer, and plan for roughly 200,000 BTU per hour of heat to duct out of the compressor room. Water cooled versions are available to order where ventilation is limited.

Related pages

• 50 HP air compressors
• 50 HP and up rotary screw air compressors
• Over 30 HP air compressors
• 250 CFM air compressors and 375 CFM air compressors
• Variable speed rotary screw air compressors
• Shop by HP, Shop by CFM and Shop by PSI