The EMAX Silent Air Industrial ESPR10V120V3-460 is a 10 HP, 120-gallon two-stage piston air compressor built for continuous shop and light-industrial duty. Its belt-driven, pressure-lubricated pump delivers 38 CFM and tops out at 175 PSI, running on 460V three-phase power through a 25-amp circuit.
Air is compressed in two stages by a pressure-lubricated pump fed through a spin-on oil filter, which keeps clean oil moving to the bearings and extends service life. EMAX rates the pump for an estimated 70,000 hours of operation. A TEFC (totally enclosed, fan-cooled) motor stands up to the dust and humidity common in working shops.
A built-in radiator aftercooler cools the compressed air leaving the pump so moisture condenses and drops out before it reaches the tank, helping protect the tank, air lines, and tools from rust and water carryover. An automatic timed tank drain vents that condensate on a schedule you set, taking daily manual draining off your list.
Radiator aftercooler with braided stainless air lines.
The pump, aftercooler, and intake sit inside the EMAX Silent Air enclosure to keep operating noise down on the shop floor. Rated for a 60% duty cycle, the unit also includes EMAX's Continuous Run function: for high-demand jobs the pump can free-spin instead of stopping and restarting, which shortens recovery time between cycles and reduces wear from repeated motor starts. That suits it to media blasting, painting, and prolonged grinding or resurfacing.
The 120-gallon vertical tank is ETL, ASME, and CRN certified, and the unit ships with a mounted magnetic motor starter, belt tensioner, and anti-vibration isolator pads. It weighs 913 lb uncrated and ships by freight — contact MGS at 307-381-1810 or sales@mygaragesupplies.com to schedule delivery.
Features
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Two-stage pressure-lubricated pump with spin-on oil filter; EMAX-rated 70,000-hour estimated pump life
Radiator aftercooler condenses and removes moisture before air enters the tank
Automatic timed tank drain vents condensate on a set schedule
Continuous Run function for high-demand, low-loss airflow jobs
Silent Air enclosure houses the pump, aftercooler, and intake to reduce noise
TEFC electric motor rated for dusty, humid shop environments
Belt tensioner for quick, accurate belt and pulley alignment
Mounted magnetic motor starter and anti-vibration isolator pads
ETL, ASME, and CRN certified 120-gallon vertical tank
Specifications
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EMAX Silent Air Industrial ESPR10V120V3-460 Specifications
Horsepower
10 HP
Tank size
120 gallons
Tank orientation
Vertical
Pump type
Two-stage piston, pressure-lubricated
Pump model
APP4V1043TP
Air delivery
38 CFM
Air delivery at max pressure
34 CFM at 175 PSI
Maximum pressure
175 PSI
Motor
10 HP TEFC electric
Voltage
460V (±10%)
Phase
3-phase
Duty cycle
60%
Recommended breaker
25 A
Full-load amps (1.15 service factor)
14.1 A
Peak / locked-rotor amps
85.4 A
Motor speed
1,740 RPM
Pump speed
730 RPM
Belts
2
Drive
Belt drive
Tank outlet
1"
Tank drain
Automatic (timed)
Estimated pump life
70,000 hours
Certifications
ETL, ASME, CRN
Weight (uncrated)
913 lb
Maintenance service kit: EFKIT008AWBS. Requires a dedicated 460V three-phase circuit installed by a licensed electrician per NEC and local codes.
Warranty
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The ESPR10V120V3-460 carries EMAX's 1-year standard warranty covering defects in material, workmanship, and parts from the date of delivery, including one year of warranty labor from an authorized technician. For warranty repairs, EMAX covers ground freight on warranty parts for the first six months.
The warranty extends to a full 5 years when you register the unit and follow EMAX's extended-warranty maintenance plan using EMAX SMART OIL. To keep coverage active, change the factory break-in oil within the first 70 hours of operation, then change the oil every 6 months or 1,000 hours (whichever comes first) and keep the pump at the correct oil level.
FAQ
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What are the electrical requirements?
The unit runs on 460V three-phase power. It draws 14.1 full-load amps (at a 1.15 service factor), needs a 25-amp breaker, and must be installed on its own dedicated circuit. Have a licensed electrician complete the wiring to NEC and local codes.
Does it include an air dryer?
No — this is the standalone compressor. The radiator aftercooler removes a large share of moisture on its own; for moisture-critical work such as painting or plasma cutting, add a refrigerated air dryer downstream.
How is it installed?
The compressor must be anchored to a flat, level concrete floor and set on rubber anti-vibration pads (1/4-inch maximum thickness). EMAX specifies 3/8-inch wedge anchors 3.5 inches long, and at least 15 inches of clearance around the unit for airflow and service access. Keep the installation area between 35°F and 110°F.
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