Heavy duty coach screwing machine KPM

Universal and powerful high-performance wrench KPM is designed to tighten or untighten the threaded elements of rail fasteners along the railway tracks. The KPM is a reliable bolting machine which can screw and loose all worldwide types of railway fasteners. The KPM’s sturdy and stable frame and 2-speed gearbox allow easy and efficient bolting and unbolting technology.

This machine is ideal for intensive track maintenance where high output is required. The four-roller transborder cart allows the operator to move the machine alone and without stopping the engine. Speed is selected by manual switch (low speed for high torque, high speed for higher performance). Adjustable torque limiter acting on the clutch and providing control of the torque.


  • easy and quick installation
  • solid manual speed switching
  • high tightening and loosening torque for eroded hardware
  • LED wide-illuminated working area
  • control of torque on pressure gauge display
  • two gears for different stiffness of the screw
  • operating without outrigger due to the low center of gravity
  • fishbolting spanner (option) for bolting fishplates

Technical characteristics of screwdriver:



Type of engine

petrol (optionally diesel or electric)

Sound power level

~95 dBA

Maximum torque, high-speed transmission

300 Nm

Maximum torque, low-speed transmission

1200 Nm

Dimensions (LxWxH)

2040x590x870 mm

Weight of the machine without oil and trolley

~90 kg

Trolley weight with brake

~48  kg

Technical details are for information only

To buy manual heavy duty coachscrewing machine KPM, please call our Sales Department:
+ 7 (988) 652-53-78 (WhatsApp, Telegram) or e-mail us: info@zheldormash.com