Quincy 370 Two-Stage Air Compressor Pump
Quincy 370 Two-Stage Air Compressor Pump
The highest-displacement pump in the QR-25 range, the Quincy 370 is a pressure-lubricated, heavy-duty reciprocating unit designed for continuous industrial service. Features a 400–1070 RPM operating range and a maximum continuous pressure of 200 PSI (intermittent up to 250 PSI). Delivers between 45–55 CFM at 175 PSI depending on motor configuration.
Technical Specifications
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Model: 370 (QR-25 Series)
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Number of Cylinders: 2
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Number of Stages: 2
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Bore (Low Pressure): 6 in
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Bore (High Pressure): 3.25 in
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Stroke: 4 in
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Speed Range: 400 – 1070 RPM
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Max Continuous Pressure: 200 PSI
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Max Intermittent Pressure: 250 PSI (Special applications up to 500 PSI)
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Oil Capacity: approx. 3.8 Liters (4.0 Quarts)
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Lubrication Type: Pressure Lubricated with Spin-on Oil Filter
Quincy 370 Two-Stage Air Compressor Pump
The Quincy 370 represents the peak of the QR-25 series, offering maximum durability and air volume. It operates at slow speeds to minimize friction and heat, ensuring a significantly longer service life than standard high-RPM compressors. The unit is fully rebuildable and features a positive displacement oil pump that ensures consistent lubrication to all internal bearings, even under heavy loads.
Key Features
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Industrial Grade Cast Iron: Features high-tensile cast iron cylinders and heads for superior heat dissipation and structural integrity.
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Positive Displacement Oil Pump: Provides pressurized oil to the crankshaft and connecting rod bearings, ensuring longevity in 24/7 operations.
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Oversized Tapered Roller Bearings: Designed to handle high radial and axial loads for increased reliability.
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Manually Reversible Oil Pump: Allows the pump to be driven in either direction for flexible installation.
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Individually Bolted Cylinders: Simplifies maintenance by allowing access to internal components without dismantling the entire unit.
