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Hydraulic Piston Motors

Although motors are usually simple by design, rebuilding them is best left to experienced technicians with the proper testing equipment. Paragon stocks most seal kits and repair parts for all the common brands of motors including Calzoni.

When it comes to motors, testing is most critical aspect of the repair. Unfortunately most hydraulic shops don’t load test because they do not have the right equipment. Our dynamometer was originally designed for radial piston motors and MHT motors back in the early 1990’s then later upgraded for the modern, more powerful Calzoni motors in 2009. When you have your motor repaired by Paragon, you can relax knowing we are doing the job right.


Repair Procedures:

  • Rotor & pistons inspected and repaired as necessary
  • Distributor lapped and inspected for defects such as cracks or pitting
  • Distributor housing is precision lapped or honed
  • All seals, gaskets and o-rings are replaced with new.
  • All bearings are replaced with premium brand to ensure smooth operation and a long service life
  • 100% load tested on a hydraulic dynamometer up to 25,000 lb/ft of torque.

Brands We Repair:

  • Staffa
  • Kawasaki
  • Calzoni
  • Parker
  • Volvo
  • Hagglunds
  • Rexroth
  • Vickers