The Quincy QT Pro 7.5 HP combines 22.6 CFM at 175 PSI with a 100% duty cycle, giving working shops a compressor designed to keep supplying air through sustained demand rather than relying on short bursts from the receiver. This two-stage unit uses a cast-iron QT pump with a finned intercooler and an 80-gallon horizontal receiver, all powered by a 208V three-phase motor. The low-profile design measures approximately 70" long × 23" wide × 47" tall, making it useful where ceiling height limits vertical equipment. Note: confirm the tank orientation and model number with us before ordering, and verify your 208V three-phase electrical service.
The pump compresses air in two stages, cooling it between stages before the second cylinder brings it to 175 PSI. A large balanced cast-iron flywheel helps smooth pump operation while moving cooling air across the assembly, and the belt drive allows the pump to run slower than the motor. The 80-gallon receiver provides reserve air for demand peaks and reduces frequent cycling, while also giving moisture an opportunity to collect in the tank. This configuration does not include an electronic drain or low-oil shutdown, so plan on manual tank draining and regular oil checks. A magnetic starter is included for controlled motor starting and thermal overload protection.
This compressor is built for busy repair shops, body and paint operations, fabrication shops, fleet facilities, and other professional environments where multiple tools may demand air throughout the workday. The horizontal receiver is particularly useful in shops with low ceilings, mezzanines, shelving, or overhead door tracks where a 74" vertical compressor would not fit. Its tradeoff is a larger floor footprint, so allow additional room around the approximately 740-lb machine for service access, airflow, and belt-guard removal. If your shop regularly runs high-consumption tools such as sanders, grinders, or blasting equipment, compare their combined continuous air demand against the compressor's 22.6 CFM output before ordering.
Two Things to Confirm Before Ordering
Two published details should be confirmed before purchase.
Tank orientation. The model code, specifications, and dimensions—approximately 70" L × 23" W × 47" H—indicate a horizontal receiver, although an earlier description called it vertical. Because orientation affects fit, ask us to confirm it in writing before ordering.
Automatic drain & low-oil shutdown. Earlier copy mentioned both, but the current specification lists neither. Plan to drain the tank manually and check the oil yourself. An automatic drain can be quoted as an add-on.
The page URL also shows a model code that differs slightly from the 473DS80HCB20 listed in the heading. Match your quote and data plate with us before purchase.
What 22.6 CFM Means
The pump's 22.6 CFM determines how much air the compressor can continuously supply; the 80-gallon tank is a storage buffer for demand peaks.
Compare the combined consumption of the tools you expect to run at the same time, and leave some headroom. Sanders, bead blasters, and other high-demand tools can quickly exceed this output.
The 80-gallon receiver helps handle short demand spikes, reduces frequent cycling, and allows moisture to condense in the tank.
Why a Horizontal Tank?
At roughly 47" tall, the horizontal design works well under shelving, mezzanines, and low ceilings. Service points such as the belt guard, oil sight glass, drain, and outlet are also closer to working height.
The trade-off is floor space: approximately 70" of length. The tank uses a 3/4" outlet.
The Pump
The two-stage QT pump uses a finned intercooler, cast-iron cylinders with aluminum heads, a balanced cast-iron flywheel, and belt drive. The slower pump speed supports the industrial-duty design and long service life.
Fit & Electrical Requirements
The compressor measures approximately 70" L × 23" W × 47" H and weighs about 740 lb. Install it on a level, load-bearing concrete surface with adequate clearance for airflow and belt-guard service.
The motor is specifically wound for 208V 3-Phase and cannot be reconfigured for another voltage. A magnetic starter is included. Quincy does not publish a fixed breaker size and recommends consulting a certified electrician.
The buyer is responsible for the electrical circuit, disconnect, installation, and suitable flooring.
Perfect For
- Independent repair shops with three-phase power
- Body and paint shops
- Fabrication and metalworking
- Fleet and municipal workshops
- Shops with low ceilings or mezzanines
What's in the Box
Complete compressor package including:
- Two-stage cast-iron QT pump
- Finned intercooler
- Belt guard
- Industrial motor
- Magnetic starter
- Oil sight glass and gauges
- 80-gallon horizontal receiver
Not included: air dryer, aftercooler, electronic drain, low-oil shutdown, hose, piping, or point-of-use regulator.
Specifications
| Motor |
7.5 HP, 208V, 3-Phase, magnetic starter fitted |
| Delivered air |
22.6 CFM |
| Maximum pressure |
175 PSI |
| Duty cycle |
100% |
| Pump |
Two-stage, 2-cylinder cast iron with aluminum head, belt drive, splash lubricated |
| Tank |
80-gallon horizontal receiver |
| Tank outlet |
3/4" |
| Dimensions |
70" long × 23" wide × 47" high |
| Weight |
740 lbs |
| Breaker |
Not published — consult a certified electrician |
Certification, Stated Plainly
The specification sheet lists ASME certification for the pressure vessel and UL and CSA recognition for the electrical components. These cover different parts of the equipment and do not replace local inspection or insurer requirements.
If a specific certification or filing is required, verify it against the data plate before ordering. We can provide the manufacturer documentation published by Quincy.
Warranty
The compressor includes a 1-Year factory warranty and may qualify for Quincy's 3-Year “No Bull” warranty, subject to the manufacturer's conditions. Requirements may include registration and, for some models, purchasing the required maintenance kit with the compressor.
Warranty Details
Freight & Delivery
At approximately 740 lb, the compressor ships by palletized freight throughout the lower 48. Plan for a forklift or pallet jack, or arrange terminal pickup with a suitable trailer. Residential delivery carries an additional fee. Freight is calculated at checkout based on your delivery address.
Inspect before signing. Check the tank, belt guard, motor, and pallet. Record any damage on the bill of lading with the driver present. A clean signed receipt can make freight claims difficult.
