Rail Welding Equipment

Profile Grinder MR 150

The Profile Grinder MR 150 is specially designed to reshape vignole rail heads after aluminothermic or ARC welding and gives accurate grinding on all the rail head surface thanks to its long spread.

The MR 150 includes a rigid frame made from aluminum alloy, supported with rollers and flanges to equip the frame and a grip on to the rail head to ensure a perfect guide in any position.


Technical Features

  • Can be supplied with a 2 stroke gas engine or an electrical engine
  • Available in 2 oversized frame versions to grind built-up weld (Arc welded rails) or to remove corrugation
  • Optional stabilizing bars
  • The adjustment of the grinding wheel is perpendicular to the rail and is controlled by a flywheel


  • Inclination of the machine from a vertical to horizontal position ensures a large and precise grinding of rolling surface, radius and sides of the rail head
  • Easy starting of the engine equipped with a centrifugal clutch
  • All grinding forces are transmitted through oversized bearings which are incorporated in the transmission box supporting the engine

Key Facts

MR 150 equipped with Thermic Engine (Version MR 150)
Type 2 stroke gas engine
Engine power 4.8 kW (6.5 CV) - 4 500 rpm
Fuel Consumption 530 g/kW.h
Weight 59 kg
Dimensions 1380 x 580 x 840 mm
MR 150 E with Electric Engine (Version MR 150 E)
Type 220 / 380 V - 50 Hz – three phases
Engine power 2 950 rpm
Weight 61 kg
Dimensions 1380 x 580 x 840 mm
  • Stabilising equipment (for easier grinding when machine is tilted)
  • Power take-off (with a centrifugal clutch to allow manual grinding)
  • Grinding wheels Ø 150 mm (4 nuts)
Rail Welding Equipment

Profile Grinder MR 150