QR-25
QR-25
QR-25 1-25 hp Heavy Duty Compressors
Do you need a heavy-duty compressor that can handle your high-demand compressed air applications? The Quincy QR-25™ is recognized throughout the industry as the leader, unmatched by any reciprocating compressor in the field and backed by one of the most comprehensive five-year warranties in the business. This highly advanced 1-25 hp air compressor series provides reliable, time-tested performance, a low cost of ownership and a maximum efficiency that will have a positive impact on your company’s bottom line for years to come.
The QR-25 is pressure lubricated in all critical areas, runs at slower speeds and features durable cast iron construction for longer life and less downtime. View the legendary heritage of the QR-25 below. See also: QR-25 Climate Control.
At a Glance
- Manually reversible oil pump
- Intake unloaders reduce work
- Low maintenance requirements
- Rebuildable components
- Loadless starting
Up Close
- 1-25 hp, 500 psig maximum
- Single & Two Stage
- 100% duty cycle rated
- Pressure lubricated
- Cast iron cylinders/valve seats
Quincy QR-25 Key Features
Our reciprocating piston QR-25 air compressors provide stable air pressure, prolonged equipment life and easy maintenance, making them a trusted choice for industrial organizations worldwide. These two-stage compressors can operate at 1-25 horsepower (hp) and are 100% duty cycle-rated for maximum operational safety.
The Quincy QR-25 has many key features, including:
- Intake unloaders for loadless starting, increased energy savings and reduced motor wear.
- Easy-access valve pockets.
- High-pressure cast-iron pistons for maximum durability.
- Lapped cast-iron valve seats for complete sealing.
- High-efficiency cast-iron cylinders.
- Steel valve discs with cast-iron bumpers and a low-lift design.
- Aluminum connecting rods with a full-flow lubrication oil passage.
- A positive displacement oil pump for continuous lubrication.
- Built-in Safe-Q-Lube and hydraulic unloader for extra protection during oil drops.
- Spin-on oil filters for easy maintenance.
- Oversized tapered roller bearings for simple operation.
- An intercooler with large circular fins for extended equipment life.
Applications of Quincy Reciprocating Air Compressors
Quincy air compressors like the QR-25 are suitable for a wide array of professional and personal applications in industries like these:
- Military
- Plastics
- Food and beverage
- Construction
- Manufacturing
- Chemical plants
- Automotive
- Dry cleaning
- Dental
- Agriculture
- Pharmaceuticals
- Home use
Quincy QR-25 Performance
The QR-25 features pressure-lubricated cast-iron construction that promotes maximum strength and minimal downtime. Quincy reciprocating air compressors operate at reduced speeds, enabling them to produce more air per horsepower than standard compressors — resulting in higher energy and cost savings. Our solutions also deliver an output of up to 500 pound-force per square inch (psi), enabling them to achieve time-tested performance in high-demand compressed air applications.
QR-25 Single-Stage Basic Compressor Specs
| Model No. | HP Range @100 PSI | ACFM @100 PSIG | Max RPM | Max. Cont. PSIG | Max. Intermit. PSIG | LxWxH (in) |
| 210 | 1 – 2 | 2.82 | 1000 | 100 | 150 | 13x7x15 |
| 216 | 1.5 – 3 | 4.74 | 900 | 100 | 100 | 17x13x21 |
| 240 | 3 – 7.5 | 10.47 | 900 | 100w | 100 | 23x16x25 |
| 270 | 5 – 10 | 15.61 | 900 | 100 | 100 | 25x20x30 |
| 4125 | 10 – 20 | 31.81 | 940 | 100 | 100 | 36x38x28 |
QR-25 Two-Stage Basic Compressor
| Model No. | HP Range | Min/Max RPM | ACFM @175 | Max. Cont. PSIG | Max. Intermit PSIG | LxWxH |
| 310 | 2 – 3 | 400/920 | 3.9/9.63 | 200 | 500 | 21x10x21 |
| 325 | 3 – 5 | 400/900 | 8.3/18.64 | 200 | 500 | 22x17x25 |
| 340 | 5 – 10 | 400/900 | 13.2/29.64 | 200 | 500 | 27x16x30 |
| 350 | 5 – 1.5 | 400/940 | 15.6/36.60 | 200 | 350 | 28x16x31 |
| 370 | 7.5 – 15 | 400/1070 | 18.5/49.72 | 200 | 250 | 28x16x31 |
| 390 | 7.5 – 20 | 400/940 | 29.5/69.21 | 200 | 250 | 33x16x34 |
| 5120 | 10 – 25 | 400/1040 | 36.5/94.97 | 200 | 250 | 32x41x31 |
Reciprocating Piston QR-25 Maintenance
With the right preventive maintenance routine, you can ensure that your Quincy compressor operates as efficiently as possible with minimal downtime and maximum service life. Be sure to service the following components regularly:
- Belts
- Air filter
- Air dryer
- Lubricant
- Oil filter
- Motor bearings
- Amps
- Intake vents
At Quincy Compressor, we offer genuine air compressor parts and components to serve all your maintenance needs. With our top-notch parts, you can minimize service frequency and cost of ownership while increasing uptime. Our reciprocating lubricants and fluids protect machines against heat and deliver high demulsibility in high-humidity environments.
Our Air Compressor Warranty
The reciprocating piston QR-25 is insured with Quincy Compressor’s comprehensive True Blue Warranty. This industry-leading five-year warranty covers all the following components:
- Airend
- Drive motor
- Air/fluid receiver
- Air and fluid heat exchanger
You can also invest in our Blue Shield Extended Warranty, which increases your warranty by an additional three to five years when you use genuine Quincy parts and fluids.
Make sure your QR-25 runs well for a lifetime with proper reciprocating air compressor oil and maintenance.