Quincy 5120 Kubota Diesel Base Mount Low Pressure Compressor

For use in the production of low pressure industrial or breathing air, the Quincy 5120 diesel stand-alone based mount ("skid mount") package provides 95 CFM (2690 L/min) at 175 psi. With years of proven dependability as an industry workhorse, this is the standard in many dive companies and industrial uses worldwide. Our Kubota package includes a 5120 compressor block with head unloaders and a 25 hp Kubota D1105-E3B Tier 4 Final diesel engine with a belt guard mounted on a powder-coated stand-alone base mount with forklift slots and optional 30-, 60-, or 120-gallon volume tanks. Optional WEG 25hp electric motor available.



  • Loadless start with head unloaders
  • Diesel or Optional Electric Powered System
    - Kubota diesel Tier 4 Final D1105-E3B engine 25hp with electric start
    - Optional WEG 25hp electric motor
  • Overpressure valve
  • Drain valve
  • Gate valve and plumbing
  • Hayes PTO bearing block
  • Engine instrument gauges and battery
  • 13-gallon fuel tank with sight gauge and filter
  • Additional remote fuel filter
  • Two (2) ASME-rated volume tanks rated at 200 psi
  • Hankinson 24 Series three filter system
    - 0.003 ppm oil vapor
    - 1 micron particles
    - Differential pressure gauge
    - Auto drain
  • Four (4) diver manifold
  • Heavy duty powder-coated stand-lone base mounted ("skid mount") frame
  • Compressor and diesel engine equipped with independent vibration mounts
  • Air quality test results


  • Carbon monoxide (CO) analyzer with high temperature shutdown
  • IMCA Certification
  • Grade D air test
  • Certified frame package (required for offshore use) includes:
    - Certified designed frame with third-party engineer sign-off
    - Weld inspection
    - Pull test
    - Serial number plate
  • Test/Tag/Certified gauges, hoses, and reliefs
  • Remote air intake to meet OSHA 29 CFR 1910.430(b) commercial diving operation requirements
  • Nuvair 100 CFM air aftercooler
  • 30-, 60-, or 120-gallon volume tanks


Charging Rate 96 CFM (2690 L/min)
Engine / Motor Diesel or Electric
Power 25 hp (18.5 kW)
Max Operating Pressure 200 psi (14 bar)
RPM 1040
Number of Stages 2
Lubrication Pressure
Air Quality Grade D Breathing Air
(L x W x H)
96 x 55 x 48 in
(1244 x 140 x 122 cm)
Weight 3000 lb (1361 kg)