EMAX Silent Air Industrial Plus 7.5 HP 120-Gallon Two-Stage Air Compressor Package with 58 CFM Refrigerated Dryer, 208V 3-Phase, ESP07V120V3PK-208

The EMAX ESP07V120V3PK-208 pairs a 7.5 HP, 120-gallon two-stage Silent Air compressor with a matched 58 CFM refrigerated air dryer, so the air that reaches your tools is already cooled, dried, and filtered the moment you plumb it in. It is built for the shop that runs air all day — tire machines, impact tools, sandblasting, paint, plasma — where a contractor-grade compressor would be cycling past its limits by mid-morning.

The cast-iron pump moves 31 CFM and holds 26 CFM at 175 PSI, with a 60% duty cycle and continuous-run capability for sustained demand. EMAX's patented Silent Air silencer lets it run up to 50% quieter — at or below normal conversational volume — without the enclosed cabinet that makes most quiet compressors hard to service.

Because the 58 CFM dryer is rated well above the compressor's 31 CFM output, it handles the full airflow with margin to spare, pulling moisture and oil out of the line before it can reach your tools, fittings, or paint work.

100% cast iron, pressure-lubricated pump

Every major component of the Eaton pump is cast iron — crankcase, cylinder heads, cylinders, connecting rods, crankshaft, and high-pressure piston — chosen for rigidity and high-duty-cycle heat handling rather than the aluminum used in lighter-duty pumps. The pump carries an estimated 70,000-hour service life.

A gear-driven oil pump mounted to the rear of the crankshaft generates positive oil pressure and feeds every bearing point continuously. Each crankshaft and connecting rod is rifle-drilled so oil travels straight to the wear points, a spin-on automotive-style filter keeps that oil clean, and a liquid-filled gauge lets you read oil pressure at a glance.

Cast iron cylinders and cylinder heads

The CNC-machined cast iron cylinders are precision-honed and deep-finned for cooling, with deep-bored, threaded holes for solid head retention under torque. The solid cast iron heads use a concentric-ring disc valve design that seals without retorquing and inspects in minutes — pull the retainer, lift the valve, reinstall.

Four-ring pistons and rebuildable connecting rods

The high-pressure pistons are cast iron and run a four-ring design — two oil-control rings and two overlapping compression rings — to minimize blow-by and oil carryover. The CNC-machined cast iron connecting rods use replaceable bearing inserts and wrist pins, so the rod assembly is fully rebuildable rather than throw-away. Low-pressure pistons in the two-stage pump are aluminum, where they run under roughly 45 PSI.

Cast iron flywheel and dual-belt V-drive

The 7.5 HP pump turns a 20-inch cast iron flywheel driving dual B-style V-belts, with nine cooling fins cast into the wheel to pull air across the pump. The heavier flywheel mass stores kinetic energy that lowers amp draw, and the dual-belt drive spreads load to reduce belt and bearing wear.

Built for continuous-duty service

• Dual-bolt belt tensioner — set and hold precise belt tension by hand; no pry bars required.
• Pump-mount riser — raises the pump for 360-degree airflow from the flywheel across the oil reservoir.
• Dual-timer electric auto drain — expels tank moisture on a 1-to-45-minute adjustable cycle, with an air muffler for quiet discharge.
• TEFC motor with magnetic starter — totally-enclosed fan-cooled motor and a factory-fitted magnetic starter for three-phase power.
• Head-unloader ready — the valves support an automatic head unloader, recommended for electric units running 40% or higher duty cycle.

The included refrigerated dryer cools compressed air to condense out water before it travels downstream, then a built-in coalescing filter strips oil and solid particulate into a drain trap. A digital controller shows dryer status and runs an automatic drain. It is rated for 58 CFM and pressures to 230 PSI, with a 122°F maximum ambient temperature and a 140°F maximum inlet temperature, and it runs on standard 115V single-phase power — separate from the compressor's three-phase circuit.

• EMAX 7.5 HP 120-gallon two-stage Silent Air compressor (ESP07V120V3-208), 208/230V three-phase
• EMAX 58 CFM refrigerated air dryer with built-in coalescing filter and auto drain (EDRCF1150058), 115V single-phase
• Compressor and refrigerated dryer owner's manuals

Both units carry a 1-year standard warranty from date of delivery covering defects in material, workmanship, and parts, with one year of warranty labor from an authorized technician. Standard warranty requires no maintenance enrollment.

The compressor warranty extends to a full 5 years when you register and follow the EMAX maintenance schedule using EMAX SMART OIL — change the break-in oil within the first 70 hours, then every 6 months or 1,000 hours thereafter. The refrigerated dryer warranty extends to 3 years when you register and purchase one dryer filter replacement kit per year. The compressor service kit is EFKIT008AWBS; the dryer service kit is FKIT012A.

What electrical service do I need?

Two separate circuits. The compressor runs on 208/230V three-phase power and calls for a 40 A breaker (20.47 A full-load, 132 A locked-rotor). The refrigerated dryer runs on standard 115V single-phase power on its own 10 A breaker. Confirm you have three-phase service in the shop before ordering this model.

Is 31 CFM enough for my tools?

The pump displaces 31 CFM and delivers 26 CFM at 175 PSI into a 120-gallon tank, with a 60% duty cycle and continuous-run capability. That covers continuous-draw work such as sanders, tire machines, and media blasting for most one- and two-bay shops; size against the combined CFM of the tools you expect to run at once.

How loud is it?

The patented Silent Air silencer is engineered to cut sound up to 50% versus a comparable open compressor, bringing it to about conversational volume. Unlike an enclosed-cabinet design, the silencer leaves the pump fully accessible for service.

Why is a refrigerated dryer included?

A 120-gallon two-stage compressor pushes warm, moisture-laden air. The refrigerated dryer condenses that water out and the built-in coalescing filter removes oil and particulate, protecting air tools, fittings, and paint and powder-coat finishes. At 58 CFM the dryer is sized above the compressor's output so it dries the full airflow.

What certifications does it carry?

The compressor is ETL, ASME, and CRN rated; the ASME and CRN listings apply to the pressure vessel. The refrigerated dryer is UL/CSE listed.

How does it ship?

Both units ship freight on pallets — the compressor crated at 48" × 46" × 87" and the dryer at 36" × 36" × 44" (167 lb). A liftgate or forklift is recommended for unloading. To schedule freight delivery, contact sales@mygaragesupplies.com or call 307-381-1810.

• Compressor Owner's Manual (PDF)
• Refrigerated Dryer Manual (PDF)
• Compressor Warranty Statement (PDF)
• Refrigerated Dryer Warranty Statement (PDF)