EMAX 7.5 HP 80-Gallon Two-Stage Air Compressor ESP07V080V3PK-208

The EMAX Industrial Plus ESP07V080V1PK combines a 7.5 HP two-stage air compressor with a 30 CFM refrigerated air dryer to deliver a complete source of clean, dry compressed air for demanding shop environments. The compressor produces 31 CFM (26 CFM at 175 PSI) on 230V single-phase power, making it a practical choice for shops without three-phase service. Built around a pressure-lubricated 100% cast iron pump with an estimated 70,000-hour service life, this system is designed for daily use with impact tools, sanders, paint equipment, and other high-air-demand applications.

The patented Silent Air™ noise suppression system reduces intake noise — the loudest source of compressor sound — using noise-reducing baffle plates and high-capacity filter media that provide up to 1000% more filtration than standard intake systems. It delivers operation up to 50% quieter while keeping the pump accessible for service, unlike enclosed cabinet compressors. The pressure-lubricated pump uses a gear-driven oil system, rifle-drilled crankshaft and connecting rod passages, and an automotive-style spin-on oil filter to deliver clean oil directly to critical components, reducing wear during continuous-duty operation.

The included 30 CFM refrigerated air dryer removes moisture and contaminants before compressed air reaches your tools, air lines, or paint work. With features like cast iron cylinders, rebuildable connecting rods, four-ring pistons, CNC-machined disc valves, automatic tank drainage, and continuous-run head unloader capability, this package is built for reliability. It is an excellent fit for automotive repair shops, fabrication facilities, maintenance departments, and professional garages that need steady airflow with cleaner, quieter operation.

Features

Pressure-Lubricated Pump

A gear-driven oil pump mounted at the rear of the crankshaft creates positive oil pressure, providing a continuous flow of lubrication to every bearing point instead of relying on splash lubrication. The crankshaft and connecting rods are rifle-drilled to direct oil precisely to critical wear areas, including bearings, wrist pins, and the upper connecting-rod assembly, helping reduce heat, minimize wear, and extend pump service life.

The lubrication system features an automotive-style spin-on oil filter to remove contaminants, an adjustable regulator for precise oil pressure control across the RPM range, a bleeder valve for quick pump priming, and a liquid-filled oil pressure gauge that allows operators to monitor oil pressure during operation.

100% Cast Iron Pump

Every major pump component is constructed from cast iron, including the crankcase, cylinder heads, cylinders, connecting rods, crankshaft, and high-pressure piston. Unlike compressors that rely on aluminum components or cast iron over aluminum sleeves, this design uses full cast iron construction to withstand high-duty-cycle compression while providing greater rigidity and durability under sustained heat.

Cast Iron Cylinders

The cast iron cylinders are CNC-machined for precise flatness and bore tolerances, ensuring consistent performance and reduced oil carryover. Deep cooling fins maximize surface area for improved heat dissipation during extended operation, while precision-honed cylinder surfaces allow easier break-in, longer piston-ring life, and improved sealing.

Deep-bored threaded holes allow proper head torque retention, helping maintain gasket durability over long periods of heavy use.

Solid Cast Iron Cylinder Heads

The cylinder heads are made from solid cast iron rather than aluminum, helping prevent head-gasket failures associated with aluminum heads under high temperatures and continuous operation. The disc-valve design provides reliable sealing, while cast iron threaded holes maintain torque more effectively without frequent retightening.

Cast Iron Pistons and Rebuildable Connecting Rods

The high-pressure pistons are constructed from cast iron to handle heavy loads and resist cylinder scoring, improving durability in demanding applications. The connecting rods are CNC-machined from solid cast iron for maximum strength and rigidity, with replaceable bearing inserts and wrist pins that make the assembly fully rebuildable instead of disposable.

A four-ring piston design, featuring two oil-control rings and two overlapping compression rings, improves sealing efficiency while reducing compression loss and oil carryover. In this two-stage pump design, the low-pressure pistons are aluminum to reduce weight and operate efficiently under lower stress conditions of approximately 45 PSI.

Cast Iron Flywheel and Belt Drive

The 7.5 HP pump is equipped with a 20-inch cast iron flywheel, two B-style V-belts, and nine large cooling fins. The flywheel’s increased mass stores kinetic energy to help reduce amp draw, while the multi-belt drive distributes the load across a larger contact area for improved belt durability and longer service life.

The cooling fins direct airflow across the pump to improve temperature control, and the dual-bolt belt tensioner allows precise adjustment and alignment without the need for prying against the motor.

CNC-Machined Disc Valves

The pump uses CNC-machined concentric-ring disc valves that are surface-ground for accurate sealing and long-term durability. Compared with traditional feather or reed-style valves, the disc valve design provides improved service life and simplified maintenance. Inspection requires only removing the retainer, lifting the valve for inspection, and reinstalling it.

Continuous-Run Head Unloader

This unit is designed for continuous-run operation. The head unloader works with the pilot valve to hold the intake valve open once preset pressure is reached, allowing the motor to continue running without repeated loaded starts.

This reduces motor and starter wear, lowers amp draw while unloaded, and allows cooler air circulation through the cylinders — an ideal configuration for applications with duty cycles of 40% or higher.

Pump Riser and Isolator Pads

The pump mounting riser elevates the pump to improve airflow around the entire assembly. This allows 360-degree cooling from the flywheel across the oil reservoir while also improving airflow beneath the pump for better heat management.

Vibration-isolator pads are included to help stabilize the unit and reduce vibration when installed on the floor.

Electric Auto Drain

A dual-timer electric automatic drain removes accumulated condensate from the air tank according to a customizable schedule. Drain intervals can be adjusted from 1 to 45 minutes, with adjustable open times to match operating requirements. An included muffler helps reduce discharge noise during automatic draining.

Specifications

Warranty

The compressor includes a 1-year standard warranty covering defects in materials, workmanship, and parts, along with one year of labor performed by an authorized technician. Registering for the EMAX Extended Warranty Program and following the required EMAX SMART OIL™ maintenance schedule extends coverage to a full 5 years. Enrolling in the SMART OIL™ auto-ship program further extends protection with a Limited Lifetime warranty on the pressure-lubricated pump, which is non-prorated and has no hour limitations, while all other non-wear components remain covered for up to 5 years.

The included refrigerated air dryer carries a separate 1-year standard warranty, which can be extended to 3 years by registering the dryer and purchasing one Airbase dryer filter replacement kit each year. Warranty registration is completed at emaxwarranty.com. The compressor ships with factory break-in oil, which must be replaced within the first 70 hours of operation to maintain warranty coverage.

FAQ

Is the air dryer included, or is it sold separately?
The air dryer is included. This package is a complete air system, combining the 7.5 HP compressor and 30 CFM refrigerated dryer in one matched setup. The dryer removes moisture from the compressed air before it reaches your tools and air lines.

What electrical service does it require?
The unit requires 208–230V three-phase power. The motor has a full-load current draw of 20.47 amps with a 1.15 service factor and a locked-rotor current of 132 amps. EMAX recommends a 40-amp breaker, and a magnetic starter is included.

Can it run continuously?
Yes. The compressor is configured for continuous-run operation with a head unloader system. Once preset pressure is reached, the unloader holds the intake valve open, allowing the motor to continue running without repeatedly starting under load. This design is ideal for applications requiring duty cycles of 40% or higher.

How long is the pump expected to last?
EMAX rates the pressure-lubricated cast iron pump for an estimated 70,000 hours of service. The pressure lubrication system, combined with the rifle-drilled crankshaft and connecting rods, maintains continuous oil flow to critical bearing surfaces during demanding operation, helping achieve this extended service life.

What certifications does it have?
The unit is ETL listed, features an ASME-coded air tank, and includes a CRN (Canadian Registration Number) certification for the pressure vessel.

What maintenance is required to maintain warranty coverage?
The factory break-in oil must be replaced within the first 70 hours of operation. After that, oil changes are required every 6 months or 1,000 hours of runtime, whichever occurs first. The 5-year warranty and Limited Lifetime pump coverage require registration and continued use of EMAX SMART OIL™ through the auto-ship program. The EFKIT008AWBS service kit includes the required oil and filters for the maintenance schedule.

This complete air system ships by freight on a durable solid oak pallet.

To arrange delivery or ask about your shop's power and placement before ordering, email support@carliftsupply.com or call 877-600-5227.

Documents

• Piston Compressor Owner's Manual
• Refrigerated Air Dryer Manual
• Compressor & Pump Warranty
• Air Dryer Warranty