The QGS rotary screw compressor delivers 54.9 CFM at 125 PSI with a 100% duty cycle, giving busy shops continuous air without the rest periods associated with reciprocating compressors. This configuration is intentionally supplied without a refrigerated dryer or aftercooler, making it a practical choice for facilities that already have downstream air treatment or need to specify filtration and dewpoint equipment for a particular application. The package measures 76" long, 25" wide and 58" tall, weighs 815 lbs and requires 208-230/460V, 3-phase power. Note: air treatment is not included and must be provided separately.
The 100% duty cycle is the key performance advantage for sustained demand. The screw element can continue producing air while multiple technicians work, rather than relying on a tank to carry the shop through repeated pump rest periods. Auto-Dual controls add another practical benefit by allowing programmed shutdown periods, so the compressor does not continue running unnecessarily when the shop is closed. Premium synthetic lubrication is rated for 8,000 hours, while low-oil shutdown and an oil sight glass help protect and monitor the compressor during routine operation.
A long-life V-belt drive keeps the mechanical system straightforward to service, although belt tension and condition still need periodic inspection. The TEFC motor and quiet enclosure are suited to commercial shop environments, while the horizontal 120-gallon receiver keeps the package relatively low and narrow at just 25" wide. The 1/2" receiver outlet should be considered when planning the air header, and adequate service clearance should be left around the compressor.
This configuration is a good fit for multi-bay automotive shops, fabrication and machining facilities, and operations that already own a dryer and filtration system. It is also useful where the required dewpoint or air quality calls for a treatment package selected specifically for the application. If you do not already have appropriate air treatment, budget for it separately. Electrical service, feeder and disconnect sizing should be confirmed by a licensed electrician using the machine nameplate; Quincy does not publish a fixed breaker or amp requirement for this model.
Auto-Dual and Smarter Running
The Auto-Dual control allows scheduled shutdowns, so the compressor does not run unnecessarily when there is no air demand. For a continuously rated machine, this is an easy way to reduce wasted energy during off-hours.
Belt Drive and Maintenance
The compressor uses a long-life V-belt drive. Belts require periodic inspection, tension checks and eventual replacement, but they are simple and inexpensive to service.
Premium synthetic lubricant is rated for 8,000 hours, while the TEFC motor, low-oil shutdown and oil sight glass support longer service intervals. Note that this model's specifications do not list a pressure gauge; ask us if one is required.
Will It Fit?
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Dimensions: 76" L × 25" W × 58" H
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Weight: 815 lbs
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Receiver: Horizontal 120-gallon
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Outlet: 1/2"
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Power: 208-230/460V, 3-phase
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Breaker: Sized by a licensed electrician according to the installation.
Perfect For
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Shops with existing air dryers and filtration that need additional compressor capacity.
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Fabrication and machining operations with specific air-quality requirements.
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Multi-bay service shops replacing an older reciprocating compressor.
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Facilities with three-phase power and available wall space for a horizontal package.
Specifications
| Motor |
15 HP, electric, TEFC |
| Free air delivery |
54.9 CFM |
| Max pressure |
125 PSI |
| Supply |
208-230/460V, 3-phase, magnetic starter included |
| Amp draw / breaker |
Manufacturer states "Consult Certified Electrician" |
| Duty cycle |
100% |
| Pump |
Rotary screw, oil-lubricated, long-life V-belt drive |
| Air treatment |
None fitted — no dryer and no aftercooler listed |
| Receiver |
120 gallon horizontal, 1/2-inch outlet, no electronic drain valve |
| Dimensions (L x W x H) |
76 in x 25 in x 58 in |
| Weight |
815 lbs |
What's Included
The package includes the QGS rotary screw compressor, long-life V-belt drive, 120-gallon horizontal receiver, TEFC motor, quiet enclosure, Auto-Dual control, air filter, oil sight glass, low-oil shutdown, magnetic starter and premium synthetic lubricant.
Shipping and Delivery
Ships by freight to the lower 48 states, with shipping calculated at checkout for your address. At 815 lbs, arrange a loading dock, suitable forklift or terminal pickup. Residential deliveries may incur an additional fee.
Warranty
Standard coverage is 1 year for consumer and commercial use. An extended 3-year factory warranty is available, while the True Blue 5-Year warranty requires commissioning by a Quincy-authorized startup.
