Numerous equipment components can be powered by a single source. The Mainstay 80 Horsepower Primary Power Unit provides hydraulic power and compressed air. Hydraulic power is delivered at 12 gallons per minute (GPM) at 3,000 pounds per square inch (psi), and compressed air can be offered up to 210 cubic feet per minute (CFM) at 100 psi.

Hydraulic power can be used to operate:

  • the mixer pump unit,

  • the 5,000 psi pressure washer, and

  • the 10 kilowatt generator.

Compressed air can be used to power:

  • the on-board diaphragm water pump,

  • pneumatic vibrators,

  • mortar spray nozzles,

  • airless spray pump,

  • the centrifugal mortar spinner, and

  • miscellaneous air powered hand tools such as chipping hammers and pneumatic drills.

Compressor Specifications:

  • Hydraulic power is delivered at 12 GPM at 3,000 psi.

  • Compressed air can be offered up to 210 CFM at 100 psi.

  • 80 horsepower John Deere® diesel engine

Boss Utility Skid CompressorBoss® Diesel Utility Skid Compressor (to learn more about Boss products, please visit

Custom-fitted Boss Utility Skid CompressorCompressors are fabricated and modified based on customer needs at Madewell’s manufacturing plant in Alpharetta, GA.