Rotary Compressors By Quincy Air

A rotary compressor is a positive displacement compression system that includes a pair of matching helical screws. An oil-flooded rotary screw compressor includes a lubricant that fills the gap between the rotors, which creates an air-tight hydraulic seal and transfers mechanical energy between the two rotors. The air moves through the threads as the screws rotate, and the meshing screws force the air through the compressor.

Rotary Compressor By Quincy Air

QGS Rotary Compressor

The QGS rotary screw air compressor line includes 5-30 hp belt screw air compressor models that include a long-life V-belt drive, high efficiency intake filter and a robust TEFC motor. The standard quiet enclosure is designed to reduce vibration and noise levels. The eight-thousand-hour premium synthetic fuel features a low oil carryover. An integrated dryer and tank mount option is also available.


  • 5-30 hp, Belt Drive
  • 40-100 hp, Gear Drive
  • 16-460 acfm, 125-150 psig
  • 62-69 dBA
  • Integrated dryer option
  • True Blue 5-Year Warranty
Quiet Air Compressors

QGD Rotary Compressor 15 hp - 60 hp Gear Drive

The QGD rotary screw air compressor line is specifically designed to provide reliable compression in the most challenging applications. The Airlogic 2 advanced control enables the compressor to operate with maximum efficiency. With a sound level as low as 66 dBA, you’re assured a quiet air compressor. The QGD is also designed for easy serviceability.


  • 15-60 hp, Gear Drive
  • 70-281 acfm @ 125 psig
  • Airlogic2 advanced control
  • Ease-of-maintenance design
  • Industrial-grade enclosure
  • 5-Year True Blue Warranty

QSI Rotary Screw Air Compressor Direct Drive 50 hp - 350 hp

Quincy’s premium QSI rotary screw air compressor product line includes 50-350 hp premium industrial screw compressors regarded as among the most reliable direct drive models you’ll find anywhere. The QSI is available with Power$ync, a revolutionary variable capacity control system that enables the compressor to function as a base-load machine as well as a part-load machine. The 130-thousand-hour design ensures efficient, long-lasting performance.


  • 50-350 hp
  • 220-1500 acfm, 100-150 psig
  • Expandable PLC Control
  • Ease-of-maintenance design
  • Industrial-grade enclosure
  • 10-Year Royal Blue Warranty

QGDV Rotary Screw Variable Speed Air Compressor

The Quincy QGDV series is a high performance variable speed rotary screw air compressor package that can be used in a wide range of applications. All QGDV units from 15 horsepower to 30 horsepower feature industry leading efficiency and serviceability. The models can be configured as basic units or can be equipped with some basic options to best fit your application. All QGDV models have low sound levels, small footprint and the lowest total cost of ownership in the industry.


  • 15-30 hp, Gear Drive
  • 70.8-141.3 acfm @ 125 psig
  • Airlogic2 advanced control
  • Ease-of-maintenance design
  • Industrial-grade enclosure
  • 5-Year True Blue Warranty

QGV Variable Speed Direct Drive Air Compressor

The QGV is a 40-200 hp variable speed rotary screw air compressor featuring a 100,000+ hour direct-drive air-end for reliable, long-lasting performance. The QGV is also designed and built for reduced power consumption, making it extremely energy-efficient. What’s more, the QGV industrial screw compressor includes a standard low-sound enclosure that provides sound levels as low as 68 dBA. You’ll also appreciate the QGV’s easy serviceability.


QSLP 10-200 hp Low Pressure Air Compressors

QSLP Low Pressure Rotary Screw Compressor

The QSLP is a low pressure direct-drive rotary screw air compressor engineered to deliver 25-50 PSIG at peak efficiency — it can reduce energy consumption by as much as 25 percent. Key features include standard heavy-duty inlet filters, a high-efficiency positive displacement pump and a full instrumentation panel.


  • 100-200hp, Direct Drive
  • 88-1521 acfm, 30-40 psig
  • Low pressure applications
  • Most efficient at 7 cfm/hp
  • Clean – only 2-3pm carryover

Rotary Screw Air Compressor Maintenance Guide

The versatility and ease of use make the rotary screw air compressor a top choice for operations of all sizes, from the largest of manufacturers to private, one-person operations. When well-maintained, a rotary air compressor can perform for thousands of hours. Why Regular Rotary Screw Air Compressor Maintenance Is Important Like all compressor types, rotary screw models [...]

Predicting Shutdowns Before They Occur :: ICONS & Quincy Air Compressor

Would you like to see a disaster coming before it strikes? How do you know when your air compressor needs maintenance? Is it when the unit breaks down, causing production to stop? ICONS from Quincy Air Compressor is designed to alert you of issues before your production line goes down. What is ICONS? Quincy Air [...]

Free Troubleshooting Guide

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Questions? Contact us for more information and advice on selecting and maintaining your rotary compressor.