EMAX ESP07V080V1 7.5 HP Silent Air | 31 CFM | 230V 1Ph | 80 Gal

31 CFM at 100 PSI | 175 PSI maximum | 230V Single Phase | 80-Gallon Vertical Tank

The EMAX ESP07V080V1 E450 Silent Air combines a robust two-stage pressure-lubricated piston pump with smart service features that make a difference in a working shop. This 7.5 HP compressor supplies 31 CFM at 100 PSI and adds a factory automatic receiver drain, belt tensioner, and patented Silent Air™ intake silencer.

It is a strong fit for automotive repair, fabrication, equipment maintenance and general production environments with appropriately sized intermittent air demand. The real advantage over a basic compressor is the combination of pump construction, maintainability, and thoughtful system design.

Key Features & Benefits

• 7.5 HP, 31 CFM at 100 PSI: High-volume air delivery for demanding shop equipment.
• 175 PSI maximum pressure: Supports regulated higher-pressure tool systems.
• Pressure-lubricated cast-iron two-stage pump: Oil is routed directly to important internal wear points.
• Patented Silent Air™ intake: Reduces noise from the intake while leaving service components accessible.
• Automatic tank drain: Removes accumulated receiver condensate on a timed cycle.
• Adjustable belt tensioner: Makes maintaining belt tension and alignment simpler.
• 80-gallon vertical receiver: Provides air storage without the long footprint of a horizontal tank.
• 230V single-phase: Commercial airflow for shops without three-phase utility service.

What Makes Pressure Lubrication Better Than Splash Lubrication?

The E450's pressure-lubricated pump uses a gear-driven oil pump to maintain lubrication at critical bearings. Rifle-drilled oil passages in the crankshaft and connecting rods route oil to high-wear areas, while an automotive-style spin-on oil filter removes contaminants. An oil-pressure gauge allows the operator to monitor lubrication. Unlike a conventional splash-lubricated design, this system is engineered to deliver oil where it is needed under load.

Cast-Iron Construction That Can Be Serviced

EMAX describes cast-iron cylinders, cylinder heads, crankshaft, connecting rods and high-pressure pistons in its pressure-lubricated pump family. Its two-stage low-pressure piston uses aluminum to reduce reciprocating mass. Four piston rings help maintain compression and limit oil carryover. Precision-machined concentric disc valves, replaceable bearing inserts, and wrist pins support repairability over the life of the pump.

Silent Air™ Noise Reduction & Intake Filtration

EMAX's patented Silent Air™ system uses sound-reducing baffles and high-capacity filter media at the compressor intake. EMAX advertises up to 50% noise reduction for the technology; actual results depend on the compressor installation and environment. This silencer approach keeps the pump and motor more accessible than a fully enclosed cabinet.

Watch the Silent Air™ demonstration and see how the filtration system works.

Automatic Drain, Belt Drive & Maintenance

The dual-timer automatic tank drain can be programmed for 1–45 minute intervals with an adjustable valve-open duration. The dual-bolt belt tensioner simplifies accurate drive-belt adjustment without prying against the motor. EMAX's pressure-lubricated pump family uses heavy-duty cast-iron flywheels, deep cooling fins and multi-belt drive arrangements for durable power transfer and pump cooling.

E350 vs. E450: Which 7.5 HP Compressor Should You Choose?

Both models are rated at 31 CFM at 100 PSI and use pressure-lubricated pumps. The E350 is a practical choice for customers who prefer the simpler manual-drain configuration. Choose the E450 if an automatic drain and belt tensioner are worthwhile additions to your maintenance routine. If you need more air, choose a higher-CFM compressor rather than assuming these features add output.

What the E450 Premium Equipment Adds

Automatic timed tank drain: EMAX specifies a dual-timer electric drain with adjustable intervals from 1 to 45 minutes and adjustable valve-open time. It removes condensate without relying solely on manual draining and includes a muffler for quieter discharge.

Dual-bolt belt tensioner: This factory-installed adjustment system makes it easier to maintain correct belt alignment and tension without prying against the motor.

Pump riser: Unlike the comparable E350 configuration, the ESP07V080V1 has a pump mounting riser that allows airflow beneath the crankcase to improve cooling.

Magnetic starter: Included with this 7.5 HP model. A qualified electrician should size installation wiring and protective devices based on the motor nameplate and local code.

Heavy-Duty Pump and Drive Construction

The manufacturer describes a 20-inch cast-iron flywheel with nine large cooling fins and two B-style belt grooves for its 7.5 HP pressure-lubricated pump family. The dual V-belt drive distributes load across two belts, while cooling fins help move air across the pump.

The crankcase, cylinder heads, cylinders, crankshaft, connecting rods and high-pressure piston are cast iron. Low-pressure pistons on the two-stage pump use aluminum for reduced reciprocating mass. Four-ring pistons, replaceable bearing inserts, and concentric disc valves help maintain sealing and support serviceable construction.

Technical Specifications

Recommended Applications & Sizing Advice

• Automotive repair, tire and general vehicle service
• Industrial maintenance and mechanical workshops
• Fabrication and machine shops with intermittent compressed air needs
• Commercial users with 230V single-phase electrical service

Compare the compressor's published CFM with the total demand of tools operating at the same time, plus required working pressure and run time. Air storage helps with intermittent peaks but does not replace adequate compressor capacity for long periods of use.

Complete the Air System

For moisture-sensitive work, choose a correctly sized compressed air dryer and in-line filtration. See compressor maintenance supplies for service items. Confirm the appropriate warranty service kit and coverage conditions with EMAX.

Frequently Asked Questions

How much air does this 7.5 HP compressor produce?

The EMAX ESP07V080V1 is rated at 31 CFM at 100 PSI and has a maximum pressure rating of 175 PSI.

Can it run on single-phase power?

Yes, this model is configured for 230V single-phase power. Have a qualified electrician verify the installation and electrical protection.

How does the E450 compare with the E350?

The comparable E350 and E450 both provide 31 CFM at 100 PSI. The E450 adds an automatic tank drain and belt tensioner for easier routine maintenance.

Does it have Silent Air™ installed?

Yes. The patented Silent Air intake noise suppression system is included.

Is the pump splash lubricated?

No. It uses a pressure-lubricated cast-iron pump with a gear-driven lubrication system.

Is the tank drain automatic?

Yes. EMAX specifies an automatic drain on this E450 model.

Does the unit include an air dryer?

No. Select a compatible air dryer and filtration based on your process and air-quality requirements.

Is it suitable for continuous industrial air demand?

Sizing depends on the duty cycle and demand profile. Continuous-run capability should not be confused with a 100% duty-cycle rating; verify the exact head-unloader configuration if that feature is required.

What maintenance should I plan?

Follow EMAX oil and filter changes, check the Silent Air intake filters and belt tension, and service the automatic drain. Warranty requirements depend on EMAX's applicable terms.

Need help choosing the correct compressed-air system? Call 877-247-2381 for help matching compressor output, electrical power, and downstream equipment to your application.