Chicago Pneumatic QRS-15 Rotary Screw Air Compressor 15HP 120 Gal. 3-Phase 230/460V New - 4152023174
Chicago Pneumatic's QRS is the leading rotary screw compressor for service or light industrial applications. Specially designed for high performance, efficiency, and reliability, the QRS rotary screw compressor will meet the compressed air demands of a tire shop, maintenance shop or paint shop. It offers comfortably quiet operation and you can use it all day long without cool-down periods.
What our Experts Think
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Professional‑grade two‑stage power
The Chicago Pneumatic RCP‑C581VS 5 HP Air Compressor delivers a 5 HP two‑stage cast iron pump with up to 175 PSI and ~18 CFM @ 100 PSI, giving strong, consistent compressed air for demanding tools and high‑air‑use applications.
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Rugged Iron Series construction
Built with an all‑cast‑iron pump and vertical ASME‑certified 80 gal tank, this compressor is engineered for durability and long service life in busy shops, garages, and light industrial environments.
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Smooth, quieter operation
Designed with slow‑RPM cast iron pump operation, it runs smoother and quieter than many competitors—reducing noise without sacrificing performance.
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Large 80 gallon reserve tank
The vertical 80 gal receiver stores significant air volume, so you get longer run time and fewer pressure drops during heavy use, ideal for multiple tools or continuous tasks.
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Single‑phase convenience
Operates on standard 230 V single‑phase power, offering compatibility with typical workshop electrical systems without needing industrial three‑phase service.
Q&A
Q: What type of air compressor is the RCP‑C581VS?
A: A two‑stage reciprocating (piston) air compressor from Chicago Pneumatic’s Iron Series, built for industrial and heavy‑duty workshop use with robust cast iron construction.
Q: What are the power and electrical specs?
A: Powered by a 5 HP motor running on 208‑230 V, single‑phase electrical supply.
Q: What is the tank capacity and orientation?
A: Features an 80 gallon vertical ASME/CRN certified tank for substantial air storage.
Q: How much airflow and pressure does it deliver?
A: Produces about 18 CFM at 100 PSI with a maximum pressure of ~175 PSI, adequate for pneumatic tools and industrial applications.
Q: What are key durability features?
A: All‑cast iron pump, finned coolers, disc valves, and splash‑lubricated oil system promote long life and reliable operation.
Q: Does it include safety/protection features?
A: Equipped with magnetic starter, fully enclosed belt guard, and pressure switch control for safe operation.
Q: Is it noisy or high maintenance?
A: Designed for low RPM and quieter operation versus typical compressors, with rugged components that reduce maintenance.
Maintenance Tips
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Change compressor oil regularly: Use recommended compressor oil and replace on schedule (e.g., every 500 hrs or per manufacturer) to protect internal bearings and pump life.
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Drain tank moisture daily: Open the drain valve to remove water buildup from the 80 gal horizontal/vertical tank — prevents rust and maintains air quality.
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Inspect/clean air filter: Check and clean or replace the intake filter routinely to ensure proper airflow and reduce stress on the pump.
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Check belts & pulleys: Inspect drive belts for wear or looseness and adjust tension or replace if cracked to ensure proper power transfer.
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Monitor pressure settings: Verify pressure switch cut‑in/cut‑out levels and gauge accuracy to keep performance optimized and safe.
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Tighten fittings & connections: Periodically check all fasteners, air lines, and threaded fittings for tightness to prevent air leaks and maintain delivery efficiency.
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Clean cooling fins & motor: Remove dust/debris from pump cooling fins and motor housing to improve heat dissipation and avoid overheating.
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Verify ventilation: Ensure the compressor location is well‑ventilated to avoid heat buildup around the pump and motor.
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Annual professional service: Have a qualified technician inspect valves, safety relief devices, and electrical components for preventive care.
