AirComParts EC15H12 15 HP Two-Stage Air Compressor - 120 Gallon Horizontal, 175 PSI, 47 CFM, 3-Cylinder Pump

The AirComParts EC15H12 is a 15 HP two-stage reciprocating air compressor on a 120 gallon horizontal ASME tank, driven by a three-cylinder cast iron pump rated 47 CFM at 175 PSI. This is production-duty air: the size you specify when the compressor runs most of the day rather than cycling between jobs.

The pump is the ACS MSW60MAX, a three-cylinder two-stage cast iron design running at 1,065 RPM and matched to a 254T frame motor. Two-stage compression with an intercooler between the low-pressure and high-pressure stages is what lets it hold a full 175 PSI continuously instead of shedding the pressure as heat.

Key specifications

• Horsepower: 15 HP
• Pump: MSW60MAX, two-stage, three-cylinder, cast iron, 1,065 RPM
• Delivery: 47 CFM at 175 PSI
• Maximum pressure: 175 PSI
• Tank: 120 gallon horizontal, ASME coded, made in the USA, supplied with safety valve and drain valve
• Weight: 1,362 lb. Add approximately 100 lb for crated shipping weight
• Available power: 208V, 230V or 460V three phase
• Motor frame: the MSW60MAX pump is matched to a 254T frame motor
• Belt guard: all metal

Three phase only

The EC15H12 is built in three phase only, at 208V, 230V or 460V. There is no single-phase 15 HP version, and that is deliberate rather than an omission: a 15 HP single-phase motor draws starting current most shop services cannot support. If you do not have three-phase service, the 10 HP EC10H12 is the largest unit in this line available on single phase.

Choosing your configuration

• Basic Unit includes the pump, belt guard, ASME tank and electric motor. It does not include the motor starter, which an industrial motor requires for proper cycling.
• With Starter Unit adds a motor starter, mounted and wired ready for use.
• Package Unit adds the mounted motor starter plus a beltguard-mounted aftercooler and an automatic tank drain.

At 47 CFM the Package Unit is the configuration worth paying for. A compressor moving this much air carries a correspondingly large volume of water vapour into the system, and the beltguard-mounted aftercooler removes roughly 75 percent of it before the air reaches the tank. The automatic tank drain discharges the condensate that does form, which protects the tank and keeps the full 120 gallons working as air storage.

Why the three-phase Basic Unit covers two voltages

The 230V and 460V Basic Units share one part number, E1016, because the motor is dual-voltage 230/460V and the starter, which is the component that fixes the supply voltage, is not part of a Basic Unit. The 208V Basic Unit, E10168, is a separate part number. On the With Starter and Package configurations every voltage has its own part number because the starter is matched to the supply.

Typical applications

Production shops and small plants, multi-station fabrication and welding, plasma and laser cutting, blast rooms and blast cabinets, paint lines, CNC machining cells, truck and fleet service, and any plant air system where 175 PSI has to be there all day for several operators at once.

Options we can add

Beltguard-mounted aftercoolers, special electrical enclosures, TEFC or explosion-proof motors, special voltages and starter configurations, a low-range 30 to 40 PSI pressure switch, and dryers, filters, regulators or coalescers. These units are built to order, so talk to us before you buy if you need the package configured a particular way.

The AirComParts EC15H12 pairs a 15 HP motor with a 175 PSI three-cylinder two-stage pump and a 120 gallon horizontal ASME tank, in Basic, With Starter and full Package configurations at 208V, 230V and 460V three phase. Tell us your supply and the tools you are running and the Warthog Air Compressor Store team will size it with you.