DISTRIBUTOR-FIRST SUPPLY PARTNER · SINCE 1999 BRAND · QUINCY
American-built air compressors engineers ask for by name.
Built. Proven. Rebuildable.
Quincy Compressor was founded in 1920 and has built compressed-air equipment in the United States for more than a century. The company manufactures from Bay Minette, Alabama — the same facility behind the QR-25, a pressure- lubricated cast-iron reciprocating piston compressor introduced in 1937 that remains an industry reference design.
American-born and factory-proven, Quincy's product line spans reciprocating piston, rotary screw (fixed-speed and variable-speed), oil-free, vacuum, and air treatment — equipment that engineers specify by name because it earns that trust over decades of continuous service.
The brand's operating principle is Total Customer Value: lean manufacturing, rebuildable components, and warranty programs (True Blue 5-Year, Blue Shield extended coverage) designed to back the iron for the life of the installation. For a distributor, that means a customer who bought a Quincy machine in 1985 still needs Quincy parts today — and brand loyalty that spans generations is a demand signal, not a coincidence.
SPC carries the full Quincy line as a direct, authorized account — compressors and parts — so when a brand-loyal customer specifies Quincy, SPC can quote and fulfill it, with no substitute-brand pressure.
Through the distribution network, Quincy availability and pricing are backed by network-aggregated demand, with SPC as the single point of contact for quoting, lead time, and after-sale support.
SPC carries the full Quincy catalog — reciprocating, fixed- and variable- speed screw, oil-free, air treatment, and vacuum — under one direct account, so a customer upgrading from a piston to a rotary screw, adding a VFD unit, or moving to oil-free process air stays with one distributor who knows the whole line.
General Manufacturing → Broad shop-air and production tooling demand where Quincy's brand reputation generates pull-through. 
Automotive Manufacturing → Assembly and production tooling requiring dependable continuous-duty air supply. 
Metalworking & Fabrication → Fabrication and machining shops that specify reciprocating piston for lower-pressure, intermittent-duty cycles. 
Woodworking & Furniture → Cabinet and millwork shops where brand-loyal operators request Quincy QR-25 by name. 
Construction & Infrastructure → Contractors and maintenance facilities where US-built durability and parts availability matter on-site. 
Agriculture & Food Production → Farm and processing facilities requiring rebuildable, long-life compressors in remote service environments. Reciprocating (QR-25) fits intermittent-duty applications under 25 HP where pressure-lubricated cast-iron longevity and rebuildability are the priority — typical for maintenance shops, tool rooms, and brand-loyal operators. Rotary screw (QGS/QGSV) fits continuous-duty applications above 5 HP where uninterrupted airflow and a quiet enclosure are required.
Fixed-speed QGS is the right call when demand is steady and the machine runs near full load most of the time — simplest, most cost-effective. Variable- speed QGSV earns its premium when the air demand varies significantly across the shift; the 20–100% turndown avoids the energy waste of load/unload cycling at partial demand.
QR-25 covers 1–25 HP for piston applications. QGS covers 5–100 HP fixed- speed rotary screw. QGSV covers 5–60 HP variable-speed. For applications above 60 HP requiring variable speed, or above 100 HP fixed speed, escalate to larger Quincy frames or evaluate Atlas Copco alongside Quincy through SPC.
Tank-mounted units (QR-25 simplex, QGS tank-mount) suit smaller installations where the receiver is part of the package. Base-mounted units pair with a remote receiver and are preferred when the compressor room has an existing storage tank or when the receiver size needs to be sized independently of the compressor package.
Reciprocating Piston Compressors Heritage piston compressor, pressure-lubricated and rebuildable. Explore → Rotary Screw Compressors — Fixed Speed Full-range fixed-speed screw, belt- or gear-driven. Explore → 
Rotary Screw Compressors — Variable Speed Variable-speed Quincy screw — matches load, saves energy. Explore → Tell us the spec and the account and we will come back with the right line, sourced through the distribution network.
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