Product Description
Quincy QSI 50–400 HP
The Quincy QSI 50–400 HP is a premium fixed-speed rotary screw compressor range for continuous industrial compressed-air production. Moreover, its heavy-duty construction supports demanding full-load operation in hot, cold, dusty and outdoor environments.
The range delivers approximately 220 to 2,011 CFM at working pressures from 100 to 175 psig. In addition, users can select air-cooled or water-cooled configurations according to the installation environment and available utilities.
Heavy-Duty Rotary Screw Technology
The Quincy QSI uses a single-stage, oil-injected rotary screw airend. Consequently, rotating helical elements compress air continuously rather than through the intermittent strokes of a piston compressor.
As a result, the compressor provides steady airflow with lower vibration. Moreover, Quincy states that its QSI airend is engineered for more than 100,000 operating hours under suitable operating and maintenance conditions.
Key Features and Benefits
- Power ratings from 50 to 400 HP
- Air delivery from 220 to 2,011 CFM
- Working pressures from 100 to 175 psig
- Air-cooled and water-cooled options
- Fixed-speed industrial operation
- Single-stage oil-injected compression
- Sound levels as low as 66 dBA
- Colour touchscreen controller
- Heavy-duty intake filtration
- Vertical-draft cooling arrangement
- Self-supporting base frame
- Integrated forklift openings
- Hinged doors and removable panels
- Oil-sampling valve for operating checks
- Long-life separator design
- Ten-year Royal Blue airend warranty
Together, these features allow the Quincy QSI 50–400 HP to support demanding industrial air systems with simplified operation and maintenance.
Published QSI Performance Range
Official fixed-speed models include:
- QSI-50: Up to approximately 275 CFM
- QSI-75: Up to approximately 390 CFM
- QSI-100: Up to approximately 512 CFM
- QSI-150: Up to approximately 769 CFM
- QSI-200: Up to approximately 997 CFM
- QSI-250: Up to approximately 1,273 CFM
- QSI-300: Up to approximately 1,603 CFM
- QSI-350: Up to approximately 1,805 CFM
- QSI-400: Up to approximately 2,011 CFM
Actual airflow depends on the selected pressure rating. Therefore, users should compare required CFM at operating pressure rather than selecting the compressor by horsepower alone.
Air-Cooled and Water-Cooled Options
An air-cooled Quincy QSI 50–400 HP uses ambient air to remove heat from the compressor fluid and discharged air. Therefore, it can simplify installation where sufficient ventilation is available.
Alternatively, a water-cooled model transfers heat through a cooling-water circuit. Consequently, it may suit enclosed plant rooms, high ambient temperatures or installations where ventilation capacity is limited.
However, water-cooled systems require a dependable water supply, suitable water quality and additional maintenance planning.
Maintenance-Friendly Enclosure
The QSI enclosure includes hinged doors and detachable panels. Therefore, technicians can reach filters, separators and other service components more easily.
Moreover, integrated forklift openings simplify positioning without requiring a crane for every installation. The self-supporting base frame also removes the need for routine floor anchoring under appropriate installation conditions.
As a result, the Quincy QSI 50–400 HP can reduce installation complexity and shorten planned service activities.
Colour Touchscreen Control
The colour touchscreen provides a central interface for compressor operation and monitoring. Consequently, operators can review system status and adjust relevant settings without using complex programming codes.
Moreover, advanced control improves visibility of maintenance requirements and operating conditions. Therefore, plant teams can respond more quickly to warnings or changing system demand.
Quiet Industrial Operation
Quincy lists sound levels as low as 66 dBA on suitable configurations. Therefore, selected QSI models can reduce noise compared with many open industrial compressor packages.
However, sound level varies by horsepower, pressure and cooling configuration. Consequently, users should confirm the published rating for the exact selected model.
Applications in the UAE
The Quincy QSI 50–400 HP may suit:
- General manufacturing
- Oil and gas operations
- Mining and quarrying
- Automotive production
- Chemical processing
- Pharmaceutical facilities
- Food and beverage support systems
- Construction operations
- Energy facilities
- HVAC manufacturing
- Agriculture
- Metal fabrication
For example, a manufacturing facility can use a QSI compressor for continuous production air. Similarly, a mining operation can select an appropriate heavy-duty configuration for dusty and demanding conditions.
Selecting the Correct Quincy QSI
Correct selection depends on:
- Required airflow at pressure
- Minimum and maximum system pressure
- Daily operating hours
- Air- or water-cooling preference
- Ambient temperature
- Electrical supply
- Air-quality requirements
- Available ventilation
- Future demand
- Maintenance access
Therefore, users should complete an air-demand study before ordering. Otherwise, an undersized compressor may operate continuously, while an oversized fixed-speed unit may unload frequently and waste energy.
Warranty Coverage
The Quincy QSI 50–400 HP qualifies for Quincy’s Royal Blue Warranty, subject to registration, approved maintenance and current warranty conditions.
The programme covers the airend for 10 years and major parts for five years, including relevant motors, couplings, coolers and air/fluid receivers. Therefore, users should review the complete warranty requirements before commissioning.
Request a Quincy QSI Compressor in the UAE
Contact our compressed-air specialists for technical selection, specifications and UAE pricing.
Please provide the required airflow, operating pressure, daily demand profile, electrical supply, cooling preference and installation conditions. Consequently, our team can recommend the correct Quincy QSI 50–400 HP configuration.