EMAX 5 HP 80-Gallon Two-Stage Air Compressor ESP05V080I1

The EMAX Silent Air Industrial Plus ESP05V080I1 is a 5 HP two-stage vertical air compressor built for shops that need steady compressed air throughout the workday. It delivers 19 CFM at 100 PSI and 17 CFM at 175 PSI maximum pressure from an 80-gallon ASME-certified tank, running on 230V single-phase power with a 26.45-amp full-load draw. Designed for continuous-run applications, this compressor combines a pressure-lubricated cast-iron pump, Silent Air™ intake silencer, and ETL, ASME, and CRN certifications in a package suited for demanding shop environments.

The Silent Air™ system reduces intake noise — the loudest source of piston compressor sound — bringing operation to at or below conversational volume while providing up to 1000% more filtration than standard intake setups. Unlike enclosed cabinet compressors, the external silencer design keeps the pump accessible for service. Inside, the 100% cast-iron APP2I0524TP pump uses a gear-driven oil pump, rifle-drilled crankshaft and connecting rods, and a spin-on oil filter to deliver clean lubrication directly to critical wear points. Combined with CNC-machined cylinders, disc valves, rebuildable connecting rods, and an estimated 70,000-hour pump life, it is designed for long-term high-duty-cycle operation.

A practical fit for automotive repair shops, fabrication facilities, professional garages, and businesses running pneumatic tools daily, the ESP05V080I1 provides reliable airflow for impact guns, sanders, spray equipment, grinders, and other compressed-air applications. The dual B-style belt drive, cast-iron flywheel, pump riser cooling system, and automatic electric tank drain help reduce vibration, manage heat, and simplify routine maintenance during continuous shop use.

Features

Silent Air™ Noise Suppression
Patented Silent Air™ technology reduces intake noise — the primary source of compressor sound — using noise-reducing baffle plates and high-capacity filtration media with up to 1000% more filtration than standard intake systems. Provides quieter operation while keeping the pump accessible for service.

Pressure-Lubricated Cast-Iron Pump
A gear-driven oil pump delivers continuous pressurized lubrication to bearings and high-friction components. Rifle-drilled crankshaft and connecting rods provide direct oil flow, while the spin-on oil filter, adjustable regulator, and liquid-filled pressure gauge simplify maintenance and monitoring.

100% Cast-Iron Cylinders
Built with cast-iron crankcase, cylinders, cylinder heads, connecting rods, crankshaft, and high-pressure piston for durability under demanding applications. CNC-machined and precision-honed cylinders improve tolerances, reduce oil carryover, and extend ring life.

Cast-Iron Cylinder Heads & Disc Valves
Solid cast-iron heads provide strong gasket retention and long-term durability. CNC-machined disc valves deliver reliable sealing, extended service life, and easier maintenance compared with traditional reed-style valves.

Rebuildable Pistons & Connecting Rods
Cast-iron high-pressure pistons and CNC-machined connecting rods with replaceable bearing inserts provide long service life and rebuildability. Four-ring piston design improves sealing, reduces blow-by, and minimizes oil carryover.

Heavy Cast-Iron Flywheel
The cast-iron flywheel stores kinetic energy to reduce amp draw and improve efficiency. Dual B-style belts and integrated cooling fins enhance belt life, airflow, and overall pump performance.

Dual-Bolt Belt Tensioner & V-Belt Drive
Provides precise belt adjustment and alignment while reducing vibration and wear. The multi-belt V-drive offers increased grip, lower belt tension, and extended component life.

Pump Riser Cooling
Raises the pump for improved 360-degree airflow around the flywheel and oil reservoir, helping maximize cooling performance.

Electric Auto Drain
Automatically removes moisture and condensate from the tank with adjustable drain intervals from 1–45 minutes and customizable valve open duration. Includes an air muffler for quieter operation.

Specifications

Warranty

The ESP05V080I1 includes a 1-year standard warranty covering defects in materials, workmanship, and parts from the date of delivery, including 1 year of warranty labor from an authorized technician. EMAX also covers ground freight for warranty parts during the first six months.

Coverage can be extended up to 5 years, along with a Limited Lifetime warranty on the pressure-lubricated pump, by registering the compressor and enrolling in the EMAX SMART OIL™ auto-ship maintenance program using the EFKIT008AWBS service kit. The Limited Lifetime pump warranty is non-prorated with no hour limit.

Extended coverage requires following the recommended maintenance schedule: replace the factory break-in oil within the first 70 hours of operation, then service the unit with EMAX SMART OIL™ every 6 months or 1,000 hours, whichever comes first.

FAQ

What electrical service does it need?

The compressor operates on 230V single-phase power and draws 26.45 full-load amps. EMAX recommends a dedicated 40A breaker. Peak starting (locked-rotor) current is 135 amps.

How loud is it?

The patented Silent Air™ intake silencer reduces compressor noise at the source, bringing operation to or below conversational volume and providing up to 50% quieter performance. The external silencer design keeps components accessible for service compared with enclosed cabinet systems.

Can it run continuously?

Yes. The unit is rated for a 60% duty cycle and supports continuous-run operation. The valve train is designed to accept an automatic head-unloader system for high-duty-cycle applications, reducing motor load while the pump is unloaded.

Documents

• Piston Compressor Manual (PDF)
• Warranty Statement (PDF)