KMF125

Komatsu KMF125 — swing hydraulic motor

The Komatsu KMF125 swing motor is a fixed displacement axial piston motor developed in-house by Komatsu. It is mounted directly on the swing reduction gear and converts hydraulic flow from the main pump into rotation of the upper structure. The design incorporates a built-in brake valve that holds the platform against unintended rotation under load. It is intended for hydraulic swing drive — for the excavator's upper structure or corresponding units on drilling rigs, mobile crushers and tunnel boring machines. Used on Komatsu excavators in the 20–22 tonne class.

Full model range in the section Komatsu LMF/KMF series.

Technical specifications KMF125

• Type: fixed displacement axial piston motor
• Design: built-in brake valve
• Application: excavator upper structure swing drive

Installed in equipment

• Komatsu

  • PC200-6 — Crawler excavator
  • PC200-7 — Crawler excavator
  • PC200-8 — Crawler excavator
  • PC200LC-8 — Crawler excavator
  • PC210-7 — Crawler excavator
  • PC210-8 — Crawler excavator
  • PC210LC-8 — Crawler excavator
  • PC210-10 — Crawler excavator
  • PC210-11 — Crawler excavator
  • PC220-7 — Crawler excavator
  • PC220-8 — Crawler excavator
  • PC220LC-8 — Crawler excavator
  • PC228-3 — Crawler excavator
  • PC228-8 — Crawler excavator
  • PC228-10 — Crawler excavator
  • PC228US-3 — Crawler excavator
  • PC230-7 — Crawler excavator
  • PC230-8 — Crawler excavator
  • PC230-11 — Crawler excavator
  • PC240-7 — Crawler excavator
  • PC240-8 — Crawler excavator
  • PC240LC-8 — Crawler excavator
  • PC240-10 — Crawler excavator
  • PC240-11 — Crawler excavator
  • PC270-7 — Crawler excavator
  • PC270-8 — Crawler excavator
  • PC270LC-8 — Crawler excavator
  • PC290-7 — Crawler excavator
  • PC290LC-7K — Crawler excavator
  • PC290LC-8 — Crawler excavator
  • PC290NLC-8 — Crawler excavator
  • PC290-10 — Crawler excavator
  • PC290-11 — Crawler excavator
  • PC308-3 — Crawler excavator
  • PC308USLC-3 — Crawler excavator
  • PC750-6 — Mining shovel
  • PC750-7 — Mining shovel
  • PC800-6 — Mining shovel
  • PC800-7 — Mining shovel
  • PC800-8 — Mining shovel
  • PC850-8 — Mining shovel
  • HB205-1 — Crawler excavator
  • PW200-7 — Wheeled excavator
  • PW220-7 — Wheeled excavator
  • BP500-7 — Drilling rig
  • JT150-1 — Drilling rig
  • BR380JG-1 — Crusher

OEM numbers KMF125

• Komatsu

  • 706-7G-01010
  • 706-7G-01011
  • 706-7G-01012
  • 706-7G-01030
  • 706-7G-01031
  • 706-7G-01040
  • 706-7G-01041
  • 706-7G-01090
  • 706-7G-01130
  • 706-7G-01170
  • 706-7G-01180
  • 706-7G-01190
  • 706-7G-01210
  • 706-7G-013180
  • 706-7G-03010
  • 706-7G-03030
  • 706-7G-03031
  • 706-7G-03040
  • 706-7G-03041
  • 706-7G-03070
  • 706-7G-03090
  • 706-7G-03130
  • 706-7G-03160
  • 706-7G-03170
  • 706-75-01150
  • 887-0074-430

Spare part numbers KMF125

• Komatsu

  • 706-7G-41120
  • 706-7G-41320
  • 706-7G-41310
  • 706-7G-41210
  • 706-7G-41630
  • 706-7G-41610
  • 706-7G-41410
  • 706-7G-41160
  • 706-7G-05010
  • 706-7G-41720
  • 706-7G-91450
  • 706-7G-91441
  • 706-7G-91350
  • 706-7G-91340

Spare parts for Komatsu KMF125

• Cylinder block Rotor
• Ball guide
• Disk Spring
• Coupling of drive shaft
• Cylinder block press pin
• Roller Bearing
• Cradle Bearing Set
• Retainer Plate
• Swash plate (cam rocker)
• Piston
• Rotor Spring
• Shaft Seal
• Valve plate
• Ball guide washer
• Washer
• Pressure Override Valve
• Seal kit motor
• Control Valve Regulator
• Servo Piston
• Drive Shaft motor
• Friction Plate

Repair and service KMF125

We accept swing hydraulic motor Komatsu KMF125 for repair: full diagnostics of hydraulic parameters, assessment of wear of pistons and cylinder block, seal inspection and bench testing after restoration.

Contact us — we will repair KMF125 and provide spare parts with quality warranty.