Product Description
Quincy QSI 50–400 HP
The Quincy QSI 50–400 HP is a premium fixed-speed rotary screw compressor range developed 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 QSI compressor uses a single-stage, oil-injected rotary screw airend. Consequently, rotating helical elements compress air continuously rather than through the intermittent strokes of a reciprocating compressor.
As a result, the compressor provides steady airflow with reduced vibration. Moreover, Quincy states that the QSI airend is engineered for more than 100,000 operating hours under appropriate operating and maintenance conditions.
Key Features and Benefits
The fixed-speed rotary screw compressor range provides several practical advantages:
- 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 range to support demanding industrial air systems with simplified operation and maintenance.
Published QSI Performance Range
Published 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 the required CFM at operating pressure instead of selecting the compressor by horsepower alone.
Air-Cooled and Water-Cooled Options
An air-cooled QSI compressor 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 compressor enclosure includes hinged doors and removable panels. Therefore, technicians can access 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 may also remove the need for routine floor anchoring under suitable installation conditions.
As a result, the QSI range can reduce installation complexity and shorten planned service activities.
Colour Touchscreen Control
A colour touchscreen provides a central interface for compressor operation and monitoring. Consequently, operators can review system status and adjust relevant settings without relying on complex programming codes.
Moreover, advanced control improves visibility of maintenance requirements and operating conditions. Therefore, plant teams can respond more quickly to warnings or changes in system demand.
Quiet Industrial Operation
Quincy lists sound levels as low as 66 dBA on suitable configurations. Therefore, selected models can reduce noise compared with many open industrial compressor packages.
However, sound level varies according to horsepower, pressure and cooling configuration. Consequently, users should confirm the published rating for the exact selected model.
Quincy QSI Applications in India
The Quincy QSI 50–400 HP range may suit many industrial applications across India, including:
- 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 Compressor
Correct selection depends on:
- Required airflow at operating pressure
- Minimum and maximum system pressure
- Daily operating hours
- Air-cooled or water-cooled preference
- Ambient temperature
- Electrical supply
- Compressed-air quality requirements
- Available ventilation
- Expected future demand
- Maintenance access
Therefore, users should complete an air-demand study before selecting a compressor. Otherwise, an undersized unit may operate continuously, while an oversized fixed-speed compressor may unload frequently and waste energy.
Warranty Coverage
The QSI range may qualify for Quincy’s Royal Blue Warranty, subject to registration, approved maintenance and applicable warranty conditions.
The programme provides coverage for the airend for up to 10 years and selected major components for up to five years. Therefore, users should review the complete warranty requirements before installation and commissioning.
Product Enquiries in India
The Quincy QSI 50–400 HP range is presented through Pumps Bharat for manufacturing, mining, automotive, oil and gas, chemical processing, pharmaceuticals, food production and general industrial compressed-air applications across India.
When submitting an enquiry, please provide the required airflow, operating pressure, daily demand profile, electrical supply, cooling preference and installation conditions. With this information, the available QSI configurations can be evaluated against the application requirements.