The EMAX ESP10V120V3PK-208 Industrial Plus is a complete 10 HP compressed air system combining a two-stage Silent Air compressor, 58 CFM refrigerated dryer, and 120-gallon vertical receiver tank. Designed for 208V three-phase power, it delivers 38 CFM (34 CFM at 175 PSI maximum pressure) through a pressure-lubricated V4 pump with a TEFC motor and magnetic starter. Its patented Silent Air system reduces intake noise by up to 50% while maintaining open access for maintenance, avoiding the service limitations of enclosed compressor cabinets.
The pressure-lubricated cast iron pump is built for demanding continuous-duty applications, using a gear-driven oil system to deliver lubrication directly to bearings, wrist pins, and other high-friction components. The pump features 100% cast iron major components, CNC-machined cylinders, cast iron high-pressure pistons, and a four-ring piston design to improve sealing and reduce oil carryover. The included 58 CFM refrigerated air dryer removes moisture before compressed air reaches your tools, while the automatic drain system clears tank condensate on adjustable cycles from 1 to 45 minutes.
Built for professional automotive shops, repair facilities, and industrial operations, this compressor package is designed for users who need reliable airflow during long work periods. The continuous-run head unloader, cast iron flywheel with dual B-style belts, dual-bolt belt tensioner, and pump riser help improve cooling, reduce component stress, and simplify maintenance for dependable daily performance.
Features
Pressure-Lubricated Pump
A rear-mounted, gear-driven oil pump creates positive oil pressure and continuously supplies lubrication to all bearing points. The crankshaft and connecting rods are rifle-drilled to deliver oil directly to bearings, wrist pins, and other high-friction components.
The system includes an automotive-style spin-on oil filter to keep oil clean and simplify maintenance, while a liquid-filled gauge provides accurate oil-pressure readings. A bleeder valve allows quick priming, and an adjustable regulator maintains proper oil pressure across different RPM ranges. EMAX estimates the pump service life at 70,000 hours.
100% Cast Iron Pump
The APP4V1043TP pump is built with cast iron throughout all major components, including the crankcase, cylinder heads, cylinders, connecting rods, crankshaft, and high-pressure piston.
Unlike aluminum-sleeved pump designs, the cast iron cylinders are CNC-machined with deep cooling fins, deep-bored threaded head-bolt holes, and precision-honed bores. These features improve durability, enhance cooling, reduce oil carryover, and help extend ring life.
Pistons and Connecting Rods
The high-pressure pistons are made from cast iron to handle heavy loads and resist cylinder scoring. The low-pressure pistons in the two-stage design are aluminum by design, providing improved balance while operating under lower stress.
CNC-machined solid cast iron connecting rods feature replaceable bearing inserts and wrist pins, allowing the rod assembly to be fully rebuilt instead of replaced. The four-ring piston design uses two oil-control rings and two compression rings to reduce blow-by, limit oil carryover, and extend operating life. Non-oil-absorbent gaskets help maintain reliable sealing between service intervals.
Cast Iron Cylinder Heads with Disc Valves
The cast iron cylinder heads use CNC-machined, precision surface-ground concentric-ring disc valves instead of traditional reed valves. These valves provide reliable sealing, long service life, and quick servicing by simply removing the retainer and lifting the valve for inspection.
The head design maintains a secure gasket seal without requiring frequent retorquing. All valves are compatible with the automatic head unloader system included on fully packaged electric units.
Heavy-Duty Flywheel and Belt Drive
The 10 HP pump uses a 20-inch cast iron flywheel with two B-style groove belts and nine large cooling fins. The flywheel’s added mass stores kinetic energy to help reduce amp draw, while the multi-belt B-width drive provides greater contact area and improved grip compared with narrow single-belt systems.
The wider belt design operates with lower tension, reducing stress on motor and pump bearings while lowering noise and extending belt life. Cooling fins help move additional air across the pump for improved temperature control.
Dual-Bolt Belt Tensioner
The dual-bolt tensioner maintains proper belt alignment and allows precise tension adjustment without the need for pry bars. This helps reduce belt wear, improve reliability, and simplify routine maintenance.
Pump Riser
The pump mounting plate riser elevates the pump to improve airflow around the system. This allows 360-degree airflow from the flywheel across the oil reservoir and underneath the pump, maximizing cooling performance during operation.
Auto Drain
The dual-timer electric auto drain automatically removes moisture and condensate from the receiver tank. Drain intervals can be adjusted from 1 to 45 minutes, and the open duration of each drain cycle can also be customized to match operating conditions.
Specifications
| EMAX ESP10V120V3PK-208 Specifications |
| Model |
ESP10V120V3PK-208 |
| Horsepower |
10 HP |
| Pump |
APP4V1043TP, V4 two-stage, pressure-lubricated |
| CFM |
38 |
| CFM at max PSI |
34 |
| Max PSI |
175 |
| Tank |
120 gallon, vertical |
| Tank drain |
Automatic, dual-timer electric |
| Voltage (±10%) |
230V |
| Phase |
3 |
| Motor |
TEFC, 1740 RPM |
| Magnetic starter |
Included |
| FLA (with 1.15 service factor) |
27.9 A |
| Peak starting / locked rotor amps |
171 A |
| Recommended breaker |
50 A |
| Start type |
Fixed |
| Duty cycle |
60%, continuous-run capable |
| Pump RPM |
730 |
| Belt count |
2 |
| Belt tensioner |
Included |
| Pump riser |
Included |
| Air outlet |
1" |
| Oil capacity |
2 quarts |
| Estimated pump life |
70,000 hours |
| Air dryer |
58 CFM refrigerated, with built-in prefilters |
| Certifications |
ETL, ASME, CRN |
| Service kit |
EFKIT008AWBS |
| Crated dimensions (L x W x H) |
48" x 46" x 87" |
| Model designation is 208V three-phase; the supplier spec sheet lists supply voltage as 230V ±10%. |
Warranty
The compressor includes a 1-year standard warranty covering defects in materials, workmanship, and parts, along with one year of warranty labor performed by an authorized technician.
By registering the unit at emaxwarranty.com and following EMAX’s required maintenance schedule using EMAX SMART OIL, coverage can be extended to a 5-year extended warranty. The compressor ships with factory break-in oil, which must be replaced within the first 70 hours of operation. After the initial oil change, maintenance is required every 6 months or 1,000 hours, whichever comes first.
The refrigerated dryer includes its own 1-year standard warranty covering materials, workmanship, and parts. Dryer coverage can be extended to 3 years by registering the unit, purchasing one Airbase dryer filter replacement kit each year, and completing the required routine maintenance.
The EMAX 5-Year Extended Warranty Kit (EFKIT008AWBS), sold separately, is designed for 5–10 HP Silent Air electric models and includes the necessary components and lubricants for initial setup and scheduled maintenance required to maintain extended warranty eligibility.
FAQ
What electrical service does it need?
The compressor requires three-phase power with a recommended 50-amp breaker. It draws 27.9 full-load amps with a 1.15 service factor, and the peak starting (locked-rotor) current is 171 amps. A magnetic starter is included.
The model is designated as 208V, while supplier specifications list the required supply voltage as 230V ±10%.
Is the air dryer included?
Yes. The package ships as a complete compressed-air system and includes a 58 CFM refrigerated air dryer with a built-in 0.001-micron prefilter and 0.005-micron coalescing prefilter to help remove moisture and contaminants before air reaches downstream equipment.
Can it run continuously?
Yes. The unit is rated for a 60% duty cycle and supports continuous-run operation. For applications above a 40% duty cycle, the ball valve on the pilot valve can be opened so the head unloader holds the intake valves open at preset pressure. This allows the motor to continue running unloaded instead of repeatedly cycling on and off.
How quiet is it?
The EMAX Silent Air system is designed for up to 50% quieter operation, with noise levels targeted at or below conversational volume. Since every 10 dBA reduction is perceived as approximately half as loud by the human ear, the system helps create a quieter working environment.
What maintenance does it need?
The compressor’s break-in oil should be changed within the first 70 hours of operation, followed by oil changes every 6 months or 1,000 hours, whichever comes first. The oil capacity is 2 quarts.
Using EMAX SMART OIL and following the recommended maintenance schedule helps maintain eligibility for extended warranty coverage. The spin-on oil filter can be replaced similarly to an automotive filter, and the EFKIT008AWBS service kit includes the scheduled-maintenance components required for this model.
Documents
Authorized Dealer - Full Warranty Included
