EMAX ES07V080V1 7.5 HP Silent Air | 31 CFM | 230V 1Ph | 80 Gal

31 CFM at 100 PSI | 175 PSI maximum | 230V single-phase | Pressure-lubricated two-stage pump

The EMAX ES07V080V1 E350 Silent Air combines substantial air delivery with a durable two-stage cast-iron compressor pump, an 80-gallon vertical tank and patented intake noise suppression. It is designed for serious automotive shops, fabrication operations, maintenance departments and other workshops that need more airflow than a typical 5 HP unit can supply.

Its pressure-lubricated pump is a key distinction from entry-level splash-lubricated compressors. Paired with a low-speed industrial motor and accessible belt drive, this is a straightforward, serviceable compressor for shop owners who value mechanical durability.

Key Features and Benefits

• 31 CFM at 100 PSI: Airflow for multiple pneumatic demands when the combined tool load is within the compressor’s available output.
• 175 PSI maximum pressure: Supports higher-pressure shop air requirements, subject to downstream regulation and equipment ratings.
• Pressure-lubricated cast-iron two-stage pump: Directs lubricant to critical moving pump components.
• Patented Silent Air™ intake: Helps limit compressor intake noise without obstructing pump access.
• 80-gallon vertical ASME receiver: Stores compressed air in a practical upright footprint.
• 230V single-phase motor: Commercial-scale compressor performance without requiring three-phase power.
• Magnetic starter: Factory-listed equipment for appropriate motor starting and protection.
• Dual V-belt drive and manual tank drain: Accessible mechanical components and straightforward upkeep.

How to Know Whether 31 CFM Is Enough

The right compressor is sized for the air your equipment actually consumes, not just its horsepower. Start with the CFM and PSI of your highest-demand tools, add the demand of tools that may run simultaneously, and consider how much of the workday air is required. A large receiver helps buffer intermittent peaks but cannot compensate for a pump that is undersized for sustained production.

For example, intermittent impact-wrench and tire-inflation work may have very different requirements from continuous sanding, blasting or CNC equipment. We can help evaluate your tool list and operating pattern before ordering.

Pressure Lubrication vs. Splash Lubrication

The E350 series uses a pressure-lubricated pump rather than depending only on the oil splash produced by moving crankcase components. This more deliberate oil-delivery approach helps lubricate critical surfaces in the pump. It remains important to keep the oil level correct and follow scheduled oil and filter changes.

Silent Air™ Noise Suppression

EMAX’s patented Silent Air™ design uses intake baffles and high-capacity filter media to reduce noise from one of the loudest areas of a piston compressor. EMAX advertises up to 50% noise reduction for the technology; actual results vary with operating conditions. The open compressor layout maintains easy service access, unlike many full-cabinet systems.

Watch the EMAX Silent Air demonstration and Silent Air technology overview.

Should You Step Up to the E450?

Choose this E350 when you want 31 CFM, pressure lubrication and Silent Air without paying for additional automated features. The comparable E450 Silent Air adds an automatic timed tank drain, belt tensioner and continuous-run control. Both series are rated at 31 CFM at 100 PSI in EMAX’s catalog, so the E450 upgrade is about operation and convenience rather than extra airflow.

A Closer Look at the Pressure-Lubricated Pump

The pressure-lubricated EMAX pump uses a gear-driven oil pump to deliver oil to internal wear points through passages drilled into the crankshaft and connecting rods. An automotive-style spin-on oil filter helps remove contaminants, and the liquid-filled oil pressure gauge lets operators monitor lubrication. This is a meaningful engineering difference from splash-lubricated compressors, although regular oil and filter maintenance remains essential.

EMAX describes cast-iron crankcases, cylinders, cylinder heads, crankshafts, connecting rods and high-pressure pistons in its pressure-lubricated pump family. Two-stage models use aluminum low-pressure pistons to reduce reciprocating weight. Four-ring piston construction helps minimize blow-by and oil carryover.

Serviceable Valves, Bearings and Belt Drive

Precision-machined concentric disc valves can be removed for inspection and maintenance. Rebuildable connecting rods with replaceable bearing inserts and wrist pins support long-term service rather than a disposable pump design. For the 7.5 HP pump family, EMAX describes a 20-inch cast-iron flywheel with nine cooling fins and two B-section belt grooves.

The heavy flywheel helps move air over the pump for cooling while driving the compressor through dual V-belts. For this ES07V080V1 model, EMAX confirms neither a pump riser nor a belt tensioner is included.

Head Unloaders and Duty Cycle

EMAX describes head-unloader configurations for high-use applications. A head unloader can reduce the compressor's pumping load when system pressure reaches a preset limit while allowing the motor to continue turning. Whether a head-unloader system is installed on this specific ES07V080V1 configuration must be confirmed; do not assume it is included or that the compressor has a 100% duty-cycle rating.

Model-Specific Features and Installation Details

The ES07V080V1 is equipped with a magnetic starter, manual tank drain, and two-belt drive. EMAX specifies no belt tensioner, no pump riser, and no radiator aftercooler on this particular configuration. These omissions matter when comparing it with higher-feature E450 models.

The APP4V1043TP pump operates at 590 RPM, driven by a 1,740 RPM ODP motor. The manufacturer recommends a 50-amp breaker, with a listed 38.90 A full-load figure including its 1.15 service factor. EMAX separately lists 210 A peak starting current and 135 A locked-rotor current; electrical sizing should be confirmed by a qualified electrician rather than treating those two figures as interchangeable.

The 80-gallon vertical model measures 39 × 25 × 75 inches uncrated and weighs approximately 712 lb. The pump holds 2 quarts of oil and uses the EFKIT008AWBS service kit. Allow appropriate clearances and plan for equipment handling on delivery.

Technical Specifications

Installation and Maintenance Considerations

• Confirm the 230V single-phase supply and starting-current requirements with a licensed electrician.
• Provide ventilation and maintenance clearance around the motor, pump and intake system.
• Follow EMAX maintenance schedules for pressure-lubricated pump oil and intake filters.
• Drain receiver condensate regularly. Add automatic drainage if appropriate for your installation.
• Select piping, regulators, dryers and filters based on actual system flow and pressure.

Complete the Air System

For moisture-sensitive tools, finishing equipment and manufacturing processes, consider a correctly sized compressed air dryer and in-line filtration. Shop our compressor maintenance supplies for service items. Optional extended warranty coverage is subject to EMAX registration and maintenance requirements.

Frequently Asked Questions

How much air will this compressor deliver?

31 CFM at 100 PSI, with a maximum rated pressure of 175 PSI. Compare the CFM demand of all tools that may operate at the same time.

Does the ES07V080V1 require three-phase power?

No. This model is 230V single-phase. Have an electrician verify your branch circuit, starting load and disconnect requirements.

What's different about the E350 versus a basic splash-lubricated compressor?

The E350 uses a pressure-lubricated two-stage cast-iron pump that delivers oil to critical pump components. That is a meaningful mechanical upgrade over EMAX's splash-lubricated E250 designs.

Does this compressor have the Silent Air system?

Yes. The factory-installed intake silencer uses internal baffles and filtration to lower intake noise. Actual reduction depends on the installation.

Is the tank drain automatic?

No. The ES07V080V1 has a manual tank drain. For an automatic drain and added controls, consider an appropriately equipped E450.

Can it operate continuous-duty?

It is not specified as a 100% continuous-duty compressor. Review daily run time and sustained airflow demand before purchasing.

Is a refrigerated air dryer included?

No. An air dryer and downstream filtration are separate equipment that should be sized to the application.

What oil and filters does it need?

Use the maintenance products and service intervals specified by EMAX for the pressure-lubricated pump and Silent Air intake assembly. The manufacturer identifies EFKIT008AWBS as a service-kit reference.

Need help selecting the correct air system? Call Compressed Air Advisors Online at 877-247-2381 for application-specific guidance on compressor sizing, electrical service and air treatment.