The QR-25 is recognized throughout the industry as a leader, a classic in its field. No compressor can match it for performance and reliability.
That's why the QR-25 comes with the most comprehensive five-year warranty in the business. With nearly two million compressors in the marketplace, we're extremely confident about the way this product is built.
For example, most QR-25 models are pressure-lubed, providing positive lubrication of all critical areas, including the crankshaft bearings, rod journals, and wrist pin surfaces. Pressure lubrication extends the life of these components and allows the QR-25 to be run on a 100% Duty Cycle much like rotary screw compressors.
The QR-25 runs at slower speeds, resulting in lower operation temperatures and maximum compressor efficiency. It features durable cast iron construction for longer life and less downtime, and heavy-duty disc-type valves for efficient air flow. The result: more air per horsepower.
With several decades of reliable service behind it, the QR-25 has become the one compressor that all others are compared to. It's a model of durability - in fact, it's quite common to find QR-25 compressors still in use after 20, 30, even 40 years of operation.
But we don't expect you to only be impressed by the QR-25's history. We know you'll be impressed enough when you see what the QR-25 can do for you now. For performance and reliability, nothing tops the classic, the QR-25.
What makes it better?
For starters, the QR-25 is heavier than rival compressors, and for good reason. The body of the QR-25 is cast iron, and the castings are good and thick to prevent heat related distortion of internal tolerances.
Valves are traditionally the items on a compressor that require the most maintenance, but Quincy has taken steps to break that trend. For instance, valve maintenance on the QR-25 can be done without removing the cylinder head, unhooking the discharge lines, unbolting the intercoolers, or anything else usually associated with valve maintenance.
The superior lubrication system utilizes a positive displacement rotary oil pump which lubricates every critical area of the compressor - not just the "bottom end". To keep the oil clean, Quincy uses a spin-on automotive-type oil filter. And an additional pressure lubricated benefit: Since all internal areas are being lubricated, they're also being cooled - the oil helps absorb the heat generated by compressing air. The QR-25's large oil capacity allows the oil to remain in the crankcase longer, dissipating heat before being pumped back into the system.
From its extra heavy-duty construction to it's low lift valves, to it's pressure lubrication system, there's no question that the QR-25 is Quincy Quality, inside and out.
Quality Features Performing Quality Functions
- Slow speed operation - requires less maintenance, produces more CFM per horsepower. It's 100% duty cycle rated.
- Valve design - lets the QR-25 run efficiently at lower temperatures, eliminates need for discharge line check valves.
- Loadless starting - for lower energy costs and less wear on motor.
- Intake unloaders - reduce work and horsepower when demand is low, thus lowering operating costs and extending life. They also unload the intercooler for the lowest unloaded horsepower possible.
- Safe-Q-Lubrication - permits the compressor to start load-free until oil pressure rises high enough to close the hydraulic unloader.
- Continuous run with modulation control - allows the compressor to match its output to system requirements by throttling the inlet valve.
- Dual oil filtration - first at the oil pick-up tube, second through the spin-on oil filter.
Other Standard Features
- Two-stage capability: 200 psig at continuous operation
- Rebuildable components
- Low maintenance requirements
- Manually reversible oil pump
Options
- Some models are intermittently rated to perform at pressures up to 500 psig
- Dual control (under 10 HP)
- For a full range of accessories, ie starters, aftercoolers, low oil pressure shutdown protection, and noise reduction, contact Air Perfection, Inc.
