Quincy Air Compressor 473D80VCB20M QT Max 7.5 HP 80 Gallon Two Stage 208V 3 Phase

The Quincy QT MAX 7.5 HP delivers 22.6 CFM at 175 PSI from a two-stage cast-iron pump running at 1,725 RPM, with a vertical 80-gallon receiver built for shops where moisture control matters. Its standout advantage is the combination of an air-cooled aftercooler and automatic tank drain, which addresses condensate before it becomes a problem throughout the air system. The 208V three-phase configuration suits commercial facilities with that electrical service. Note: the unit measures approximately 37" × 24" × 74" and weighs 720 lbs, so verify ceiling clearance, floor capacity, and electrical requirements before installation.

The aftercooler forces hot compressed air to cool immediately after leaving the pump, allowing moisture to condense at the compressor instead of farther downstream in your piping. That gives the automatic drain a chance to remove accumulated condensate from the receiver without relying on someone to open a manual valve. The pump also uses a high-efficiency finned intercooler between compression stages, aluminum cylinder heads, two-piece connecting rods, splash lubrication with low-oil protection, and an oversized oil reserve. A magnetic starter provides controlled starting and thermal overload protection for the motor.

This compressor is a strong fit for body shops, paint operations, automotive repair facilities, and commercial shops where consistent compressed-air performance and moisture management are important. It is particularly useful in buildings with long air runs or a history of condensate problems, and for businesses that want automatic tank drainage as part of their everyday operation. The 80-gallon vertical receiver saves floor space compared with a horizontal layout, while the 208V three-phase motor makes this configuration well suited to commercial electrical systems that already provide three-phase service.

Why the Aftercooler Matters

Compressed air leaves the pump hot and moisture-laden. The air-cooled aftercooler drops the temperature before air enters the receiver, helping condensate separate where it can be drained instead of collecting throughout your piping.

It is not a substitute for a dryer on moisture-critical applications, but it removes much of the moisture load before downstream equipment has to handle it.

Automatic Tank Drain

Receivers collect condensate, and a manual drain depends on someone remembering to use it. The automatic tank drain removes that step and helps prevent water from standing inside the receiver, reducing internal corrosion over time.

Slow-Speed, Two-Stage Pump

The pump runs at 1,725 RPM and delivers 22.6 CFM at 175 PSI. Its slow-speed design helps manage heat, vibration, and component wear during extended operation.

The splash-lubricated pump includes low-oil protection and an oversized oil reservoir. The protection system shuts the compressor down if oil levels become unsafe, while the larger reservoir provides additional oil capacity for sustained operation.

Cooling, Starting & Serviceability

A high-efficiency finned intercooler cools air between compression stages, while aluminum heads help dissipate pump heat.

The pump uses two-piece connecting rods, and the motor includes a factory-mounted magnetic starter with thermal overload protection.

Will It Fit?

The vertical 80-gallon receiver measures approximately 37" × 24" × 74" and weighs 720 lb. Check ceiling height, overhead service clearance, floor capacity, and access to the drain and outlet before delivery.

The compressor requires 208V, 3-phase power. Breaker and conductor sizing depend on the installation, so have a qualified electrician verify the circuit requirements from the motor data and local code. Confirm the voltage at your panel before ordering.

Perfect For

• Body shops and paint applications
• Commercial shops with 208V 3-phase power
• Long piping runs where moisture control matters
• Operations that benefit from automatic condensate removal

What's in the Box

Complete compressor with two-stage cast-iron pump, aluminum heads, 7.5 HP motor and belt drive, finned intercooler, air-cooled aftercooler, automatic tank drain, low-oil protection, magnetic starter, and 80-gallon vertical ASME-certified receiver.

Not included: shop piping, electrical disconnect, air dryer, or downstream filtration.

Specifications

Certification, Honestly

The receiver is an ASME certified pressure vessel, and the manufacturer's data records a CSA marking with it. Those are two separate certifications covering two separate things: the pressure vessel code governs how the tank was designed, welded and inspected, while the electrical marking covers the motor and controls. Neither is evidence for the other.

Check the data plate on the machine when it arrives, since that is the document an inspector or an insurer will read and the only one that travels with the unit. If a specific listing is required by your code, your lease or your insurance policy, verify it against the plate before installation.

Shipping and Delivery

Freight to the lower 48 states. The compressor weighs 720 lbs and ships upright on a pallet, so plan for a forklift, a loading dock, or a pickup arranged with the freight terminal. Delivery to a residential address carries a residential fee.

Inspect the machine before you sign the bill of lading. Look for damage to the guards and the aftercooler, a receiver that has moved in its bracing, and oil on the pallet, and note everything in writing while the driver is present. Signing clean and reporting later leaves you with very little.

Warranty

A 1-year factory warranty applies, extending to a 3-year "No Bull" warranty when Quincy's conditions are met. Those conditions are set at purchase and typically require the matching maintenance kit to be bought with the compressor and the unit to be registered with the manufacturer, so deal with both when you order. The supplied warranty documentation carries the governing terms.

Warranty Details