Quincy Air Compressor 15 HP 120 Gallon Two Stage 208V 3 Phase

The Quincy QP Pro 10 HP two-stage compressor uses a pressure-lubrication system that sets it apart from conventional splash-lubricated reciprocating compressors. A gerotor positive-displacement oil pump delivers lubricant directly to the crankshaft, bearings, and connecting rods, while a spin-on oil filter removes contaminants from the circulating oil. Quincy rates this design for up to 15% longer service life than a comparable splash-lubricated pump. The horizontal 120-gallon receiver measures 78" × 28" × 55" and weighs 995 lbs. Note: this model requires 208V three-phase power.

The pressure-fed oil circuit provides more consistent lubrication than relying on the crankshaft to splash oil around the crankcase, particularly during cold starts and demanding operation. It also allows the use of a replaceable spin-on filter, making routine oil service straightforward. An oil sight glass provides quick level checks, while the cast-iron cylinders and fin-and-tube intercooler help manage operating temperatures. With a 175 PSI maximum working pressure and 1" tank outlet, the compressor is designed for a properly piped shop air system rather than a basic hose-reel setup.

This compressor is a practical choice for busy independent repair shops, fabrication and welding operations, fleet facilities, and agricultural workshops with 208V three-phase service. It makes particular sense for shops that keep equipment on a regular maintenance schedule and want accessible wear and service components rather than a sealed system. The magnetic starter is included, but electrical feed, disconnect, shop piping, air treatment, and installation are not. Quincy does not specify a universal breaker or conductor size, so a certified electrician should size the electrical installation for your building and run length.

What Pressure Lubrication Actually Buys

The point is not that splash lubrication is inherently bad. The difference is how the lubricant reaches the loaded components.

In a splash-lubricated system, the crankshaft and connecting-rod assembly distribute oil through the crankcase. Oil delivery is therefore influenced by factors such as oil level, temperature and operating conditions. A pressure-lubricated system instead uses an oil pump to circulate lubricant through the system at controlled flow and pressure.

For a compressor operating under sustained load, that distinction can matter because reliable lubrication is fundamental to bearing and component life.

Pressure circulation can also support full-flow oil filtration, allowing lubricant to pass through a filter before reaching critical components. A spin-on oil filter is specified for this package, helping remove contaminants from the circulating lubricant.

There is one important qualification: our available documentation is inconsistent about the lubrication method on this particular unit. The package description and feature list identify pressure lubrication, while another specification field records splash lubrication. We will not present one as confirmed until Quincy verifies it. If the lubrication system is a deciding factor in your purchase, ask us for written confirmation of the factory configuration before ordering.

Maintenance You Can Actually Keep Up With

In practical terms, this compressor is designed around routine maintenance rather than complicated service procedures.

The oil sight glass allows the oil level to be checked visually. The spin-on oil filter is designed for straightforward replacement without major disassembly. The cast-iron cylinders and fin-and-tube intercooler help manage the heat generated during two-stage compression, while accessible service points make routine checks easier to perform with the compressor installed.

None of these features eliminates maintenance. The advantage is that the important maintenance tasks are visible and accessible, making them easier to incorporate into a working shop's regular service schedule.

Will It Fit?

This configuration uses a 120-gallon horizontal receiver measuring approximately 78 inches long × 28 inches wide × 55 inches high and weighing approximately 995 lbs dry.

Allow more space than the published footprint alone suggests. The pump end needs enough clearance to access the belt guard and service points, the cooling system needs unrestricted airflow, and you should have sufficient room to position appropriate equipment beneath the receiver for draining.

Compressed air exits through a 1-inch outlet, and the maximum working pressure is 175 PSI.

Electrical supply is the 208V, 3-phase configuration. Verify the voltage at your own electrical panel rather than assuming an existing three-phase circuit is compatible. Three-phase systems are available at different voltages, and the compressor must be matched to the available service.

A magnetic starter is included. Quincy does not publish a universal breaker or conductor size for this configuration and directs customers to consult a certified electrician. The appropriate electrical protection depends on the actual service, conductor run and applicable local code.

Before ordering, verify the electrical supply, access route, floor area and installation clearances. Those checks are the buyer's responsibility and are far easier to resolve before delivery.

Perfect For

• Busy independent service shops with compatible 208V, three-phase power and sustained compressed-air demand.
• Fabrication and welding shops where the compressor may operate for extended periods.
• Fleet and agricultural workshops that place demanding, repeated loads on their compressed-air system.
• Shops with a disciplined maintenance program that track oil condition and service intervals rather than waiting for problems to appear.

Specifications

Confirm the Motor Rating Before You Order

Published information for the motor is inconsistent. The product title, model designation and page heading identify this compressor as a 15 HP machine, while one section of the specification data records a smaller motor rating along with a corresponding free-air-delivery figure.

We are carrying the 15 HP rating because it is the figure supported by the title, model designation and page heading, but we are not treating the conflicting specification as irrelevant. At this size, motor rating affects the electrical requirements as well as the compressor's expected output.

Confirm the motor rating and corresponding rated air delivery with us in writing before ordering. We will obtain both from Quincy so you can size the installation against the correct factory configuration.

Certification, Stated Plainly

The ASME designation applies specifically to the pressure vessel — the receiver, its design, materials and construction. It should not be interpreted as a certification of the complete compressor package, pump, motor or compressed-air quality.

Likewise, certification or listing marks do not replace local installation requirements, permits or any periodic pressure-vessel inspection that may apply in your jurisdiction. The electrical markings apply to the relevant electrical components and should be evaluated separately from the receiver certification.

Before installation, confirm which certifications, inspections and permits your local authority, insurer or facility requires for a receiver of this size. Planning for those requirements before delivery is considerably easier than addressing them after installation.

Shipping and Delivery

This compressor ships by freight within the lower 48 states, with the shipping cost calculated at checkout based on your delivery address.

Before ordering, arrange for safe unloading. This is not a hand-unload shipment; the destination needs an appropriately rated forklift or loading dock, or you can arrange terminal pickup and provide suitable equipment there.

Also make sure the delivery address is identified correctly. Residential deliveries carry an additional residential fee, so enter the address type accurately when obtaining your freight quote.

When the shipment arrives, inspect it before signing the delivery paperwork. Check the receiver, guards, gauges, feet, fittings and exposed components for visible damage. If you find anything, photograph it and have the damage recorded on the bill of lading while the driver is present. A clean signed delivery receipt can make a subsequent freight-damage claim considerably more difficult.

Warranty

Quincy provides a 1-year factory warranty on this compressor. The specification information also identifies a Quincy maintenance kit associated with extended coverage, but the applicable warranty documentation governs the actual requirements.

If an extended warranty is important to your purchase, confirm the registration and maintenance requirements with us before ordering and complete any required registration promptly after delivery.