Quincy Air Compressor Pro 80 Gallon Two Stage 460V 3 Phase

The Quincy QT Pro 7.5 HP compressor is built for facilities with 460V three-phase power, using the same cast iron two-stage pump and 80-gallon horizontal receiver found across this family. The fixed-voltage motor is the key reason to choose this version: it must be matched to the available electrical supply before ordering. Quincy rates the compressor for a 100% duty cycle and 175 PSI maximum pressure, making it suitable for applications that require sustained compressed air throughout the workday. The factory-supplied magnetic starter provides the motor switching and protection system for the installation.

The two-stage pump is designed to handle continuous operation through a combination of slow pump speed and effective heat management. Air is cooled between the first and second compression stages by a finned-tube intercooler, while the aluminum head helps dissipate heat and the large balanced cast iron flywheel provides smooth operation while directing cooling air across the pump. Industrial-class bearings, graphite gaskets, and stainless steel reed valves support the pump through repeated operating cycles. Quincy rates this pump family for more than 50,000 hours of service when properly maintained. The 460V configuration also reduces current requirements compared with lower-voltage versions performing the same work, which can be useful on installations with long electrical runs.

This compressor is a practical fit for industrial plants, manufacturing and fabrication facilities, fleet garages, and larger workshops already equipped with 460V three-phase service. Its horizontal 80-gallon receiver creates a low-profile package that stands approximately 47 inches tall, making it useful where overhead clearance is limited. The unit requires a properly matched 460V three-phase supply, solid level concrete, and adequate clearance for cooling airflow and service access. Quincy does not provide a verified delivered-air figure for this specific build in the supplied information, so airflow at a stated pressure should be confirmed before ordering if CFM is a deciding factor.

Two Things to Confirm Before Ordering

Airflow: We are not publishing a CFM figure for this build. The specification data contains a delivered-air value for the pump family, but the unit of measure is not verified for this specific model. Rather than copy a rating from another voltage configuration, we will confirm the factory-rated airflow at pressure with Quincy in writing.

The 175 PSI maximum pressure is confirmed.

Model code: The page URL references a different model code than the 473DS80HCB46 listed in the product data. Send us the model number on your quote so we can match it to the exact build before shipment.

What 460V Does for You

For the same motor output, 460V 3-phase generally requires less current than lower-voltage configurations. That can simplify conductor sizing and help manage voltage drop on longer electrical runs.

This is an installation advantage, not a performance difference—the compressor performs the same job as comparable builds using the same pump.

Quincy does not publish a specific current draw or breaker size for this model and recommends consulting a certified electrician. Electrical protection must be sized for the actual installation, starter, conductor run and applicable code.

A magnetic starter is included.

Built for Continuous Duty

The compressor is rated for a 100% duty cycle, with no prescribed rest period.

Its two-stage cast-iron pump uses a belt drive, finned-tube intercooler, aluminum head and balanced cast-iron flywheel. The intercooler removes heat between compression stages, while the flywheel provides smooth operation and cooling airflow.

Additional components include industrial-class bearings, graphite gaskets and stainless steel reed valves. Quincy rates this pump family for 50,000+ hours of service, assuming proper maintenance such as oil changes and intake-filter service.

Will It Fit?

The horizontal 80-gallon configuration measures approximately:

• 70" L × 23" W × 47" H
• 740 lbs
• 3/4" tank outlet

The low profile works well under mezzanines, shelving and overhead door tracks while keeping routine service points accessible from standing height.

Install on level, solid concrete with adequate clearance for cooling airflow and service access. Do not enclose the compressor in a sealed space.

Customer responsibilities: electrical supply and disconnect, appropriate floor support, installation clearances and connection to the shop air system.

Perfect For

• Industrial plants and larger workshops with 460V, 3-phase service
• Manufacturing and fabrication with sustained air demand
• Fleet, transit and municipal garages
• Facilities replacing a compressor on an existing 460V circuit

What's Included

• Cast-iron two-stage pump
• Finned-tube intercooler
• Belt drive and guard
• Heavy-duty industrial motor
• Magnetic starter
• Pressure gauges
• Oil sight glass
• 80-gallon horizontal receiver

Not included: air dryer, aftercooler, electronic drain valve, piping, hoses, point-of-use regulation or other downstream air treatment.

Specifications

Certification, Stated Plainly

Quincy lists ASME for the pressure vessel and UL and CSA for the electrical components. These markings apply to their respective areas of the equipment and do not certify your site installation.

If your insurer, inspector or local authority requires specific documentation or pressure-vessel inspection, confirm the requirement against the unit’s data plate before purchase. We can provide the manufacturer’s published documentation.

Warranty

The compressor includes a 1-year factory warranty, with eligibility for a 3-year Quincy “No Bull” warranty subject to the manufacturer’s terms. Requirements may include unit registration and, for applicable models, purchasing the required maintenance kit with the compressor.

We will confirm the conditions that apply to this model before ordering.

If a failure occurs, contact us before disassembling the pump. Keep the unit intact so the manufacturer can properly evaluate the warranty claim.

Warranty Details

Freight & Delivery

Ships by palletized freight to the lower 48 states. The customer must arrange suitable unloading equipment, such as a forklift or pallet jack. If necessary, freight-terminal pickup with an appropriate trailer is another option.

Residential delivery is available and may include an additional residential fee. Freight is calculated live at checkout based on the delivery address.

Inspect the compressor before signing. Check the tank, guard, motor, gauges and pallet, and document any damage on the bill of lading with the driver present.