EMAX 7.5 HP 29 CFM Single-Phase Rotary Screw Air Compressor with 30 CFM Refrigerated Dryer — 120-Gallon Horizontal Tank, Swing Arm (ERVK070001)

The EMAX 7.5 HP single-phase rotary screw air compressor (ERVK070001) is a complete shop-air package: a rotary screw compressor, a 30 CFM refrigerated air dryer, and a 120-gallon horizontal receiver tank assembled and plumbed together on one mounting frame. It delivers 29 CFM at up to 145 PSI on standard 230V single-phase power, so a small shop can run air tools, lifts, and equipment from one continuous-duty source without stepping up to three-phase service.

Unlike a piston compressor that cycles hard against its duty limit, the oil-injected rotary screw air end is engineered for up to 100% duty cycle and can run through a full work day. The matched refrigerated dryer pulls moisture out of the compressed air before it reaches your lines, protecting air tools, finishes, and downstream equipment from water damage.

This package ships as a complete freight unit on a pallet. Contact MGS at sales@mygaragesupplies.com or 307-381-1810 to schedule delivery.

• Oil-injected rotary screw air end — single-stage design rated for up to 100% duty cycle, with an estimated pump life of 100,000 hours.
• 30 CFM refrigerated air dryer — removes moisture from the compressed air to protect tools, air lines, and finishes; cooled by an on-board condenser fan.
• Swing-arm dryer mount — the dryer hinges away from the compressor cabinet to open up room for service.
• 120-gallon horizontal receiver tank — a large air reserve in a low, horizontal footprint on welded steel feet.
• Automatic tank drain — a dual-timer electric drain expels condensate on an adjustable 1-to-45-minute cycle and includes an air muffler for quiet discharge.
• Two-belt V-belt drive — belt-driven power transmission from the ODP electric motor.
• On-board digital control panel — cabinet-mounted display with an emergency-stop button.
• Hydraulic interconnect hoses included — the compressor, dryer, and tank arrive plumbed together.

• EMAX 7.5 HP single-phase rotary screw air compressor
• 30 CFM refrigerated air dryer with swing-arm mount
• 120-gallon horizontal receiver tank with welded mounting feet
• Dual-timer automatic electric tank drain with muffler
• Hydraulic interconnect hoses
• Factory break-in oil and filters (change to EMAX SMART OIL and filters at 600 hours)

EMAX Compressor backs the rotary screw compressor with a 1-year standard warranty from the date of delivery, covering the rotary screw pump, electric motor, and all components against defects in materials and workmanship, plus one year of warranty labor from an authorized technician. The refrigerated dryer carries its own 1-year standard warranty on materials, workmanship, and parts, with one year of warranty labor.

Both warranties can be extended. The compressor warranty extends to 10 years on the rotary screw pump and 5 years on the single-phase motor (plus 5 years on other components) when you enroll in EMAX's extended plan and follow the SMART OIL maintenance schedule; enrolling in the SMART OIL auto-ship program upgrades the pump to a limited lifetime warranty. The dryer warranty extends to 3 years with annual filter-kit replacement and registration.

Extended and lifetime coverage require using EMAX SMART OIL and filters: the factory break-in oil and filters must be changed to SMART OIL at 600 hours, then at the scheduled interval thereafter. Full terms, conditions, and exclusions are in the warranty documents below.

What electrical service does it need?

The compressor runs on 230V single-phase power and draws 28.8 full-load amps (at a 1.15 service factor). EMAX lists a 30-amp recommended breaker; have a licensed electrician confirm the circuit and wiring for your shop.

Can it run all day, or does it need to cool down between cycles?

The oil-injected rotary screw air end is engineered for up to 100% duty cycle, so it is built to run continuously through a full work shift rather than cycling on and off the way a piston compressor does.

Does it come with an air dryer and an automatic drain?

Yes. The package includes a matched 30 CFM refrigerated air dryer on a swing-arm mount and a dual-timer automatic electric tank drain with an adjustable 1-to-45-minute cycle.

What oil does it use, and how often?

Units ship with factory break-in oil and filters. To keep extended or lifetime warranty coverage, change to EMAX SMART OIL and new filters at 600 hours, then on the scheduled maintenance interval. Oil capacity is 1.33 gallons.

Where should it be installed?

Install the unit in a well-ventilated area where the ambient temperature stays below 100°F, and keep it out of dusty environments such as granite, marble, or concrete shops unless it has its own dedicated, dust-free ventilated space. Operating in fine dust or excessive heat voids the warranty.

• Rotary Screw Air Compressor User Manual (PDF)
• Refrigerated Air Dryer Instructions Manual (PDF)
• Rotary Screw Compressor Warranty (PDF)
• Refrigerated Air Dryer Warranty (PDF)