Champion R-Series Dual 7.5HP Duplex Piston Air Compressor 460V 120 Gallon

SKU: 40007
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$8,679.27

This duplex air compressor is a powerhouse specifically designed to meet the high, continuous air demand of a commercial car wash, supplying pneumatic power for all wash functions and equipment like blast gates and applicators. The system's duplex configuration is key to its reliability: it alternates the primary compressor for even wear and automatically activates the second compressor during peak demand, ensuring consistent air supply up to 44.6 CFM at 175 PSI.


Each compressor utilizes a rugged splash-lubricated R-Series pump with a gasketless, integral cylinder/head design, eliminating the risk of blown head gaskets. The construction is robust, featuring an Aluminum Alloy first-stage piston and Cast Iron second-stage piston for proper balance and durability. The unit includes advanced features for reliability and longevity, such as Loadless Starting (mechanical unloader), a Low Oil Stop Control, and an Electronic Tank Drain for automatic condensate removal. The entire assembly is mounted on an ASME-certified 120 gallon horizontal receiver.


NOTE: Air dryer is NOT included, For the complete kit, including the air dryer, see: 40007-K.

  • Manufacturer Model No.: Champion HR7DF-12 (R-Series)
  • Product Type: Duplex Piston Air Compressor
  • Application: Commercial Car Wash Pneumatic Air Supply
  • Horsepower (HP): 7.5 HP/Compressor (15 HP Total)
  • Voltage: 460 V
  • Phase: 3-Phase
  • Frequency: 60 Hz
  • Max Working Pressure (MWP): 175 PSI
  • Delivered Capacity (CFM): 44.6 CFM at 175 PSI
  • Storage Tank Capacity: 120 Gallons (Horizontal)
  • Air Connection Size: 3/4"
  • Drain Connection Size: 3/4"
  • RPM: 949 RPM
  • Current Rating (FLA): 11 A
  • Noise Level: 80 dB(A)
  • Weight: 1,150 lbs
  • Features: Air Cooled Aftercooler, Electronic Tank Drain, Low Oil Stop Control, Hour Meter, Loadless Starting, Automatic Alternation.
  • Note: Air Dryer is NOT Included (Order 40007-K for the kit).
  • Duplex Reliability: Two 7.5 HP compressors ensure continuous air flow and even wear through automatic alternation.
  • High Output: Delivers 44.6 CFM at 175 PSI for demanding wash applications.
  • Low Maintenance Design: Features a gasketless pump design, electronic tank drain, and low oil stop.
  • Long Life Construction: Rugged cast iron crankcase and balanced piston design with tapered roller main bearings.

1 Year Cover to Cover Warranty

3 Year Pump Package Warranty

2 Year Bare Pump Warranty

1 Year Electric Motors Warranty

1 Year Air Receivers Warranty

1 Year Package, Electric Motor, Air Receivers, Bare Pump Labor Warranty

*Please review our warranty policy here for additional details.

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