ROGRIND Head 1.0

Rail Head Profile Grinding Machine

13.48 Restores the profile of rails at various levels of wear. Powerful grinding made easy.

  • Deburring down to the true contour
  • Accurate cross section
  • Patented copying device
  • Operation on either side
  • Unrestricted view of the grinding area
  • Rocker switch for placing the cup wheel
  • Ergonomic posture at any time
  • Thermite and flash butt welding
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Drive 4-stroke petrol engine Electric motor
Type HONDA GX 270 Three-phase motor
Output 6,3 kW at 3600 rpm 4 kW at 2850 rpm
Cup wheel ø 125 mm or ø 150 mm (optional) ø 150 mm or ø 125 mm (optional)
Max. permissible circumferential speed 50 m/s
Grinding disc speed 4200 rpm 4500 rpm
Grinding base/roller spacing 1000 mm
Weight ~99 kg ~99,5 kg
Weight outrigger ~28 kg ~25 kg
Length without/with folding handles 1450 / 1840 mm 1550 / 1975 mm
Weidth without/ with telescopic handle 550 / 580 mm 325 / 490 mm
Height 870 mm 880 mm
Copy roller spacing 1000 mm
Pivoting angle, copying carriage 92 °

How does ROGRIND Head 1.0 improve ergonomics while grinding?

The entire machine has been designed with a view to ergonomics: The boom keeps the frame upright on the track and the operator can retain their natural posture for the entire grinding process.

Only the grinding unit is pivoted by means of a handwheel. Operation from both the left and the right side maintains an unrestricted view of the area of work which can be perfectly lit by optional LED lamps.

How do I use ROGRIND Head 1.0 for grinding?

An electric motor actuated by a programmable logic controller (PLC) places the grinding position and depth limit of the cup wheel down to tenths of millimetres. You will thus need a lot less strength and experience to obtain a perfect result.

 

  • The operator makes contact with the rail next to the joint
  • and presses a button on the PLC to define the datum level or the depth stopper - from this home position, the grindstone can only move upwards.
  • This is effectively eliminating undergrinding.
  • Then the grinder scratches along the other end of the grinding section and raises the home position in case a discrepancy is found.
  • Whereas rough grinding completes in several cycles, fine-tuned cup wheel feed free from play is controlled by pressing the rocker switch.

How does finishing work?

Finishing is achieved by a method patented by Robel:

  • The home position level stored in the PLC is the same as the dimensions of the original grindstone.
  • As the grindstone wears down, the joint will protrude from the home position level by 0.2 to 0.4 mm
  • The operator can level out the difference by setting the PLC to finishing mode (between 0.1 and 0.9 mm in steps of 0.1 mm).
  • Upon pressing a button, the grindstone will move down to and stay at the defined position.
  • Upon releasing the button, the grindstone will perform a very short stroke to automatically return to the home position.
  • What you get is a repeatable cross section with smooth and pointed bevels.

How does ROBEL's patented contour copying device work?

A guiding mechanism forces the rail guiding discs to turn with the pivoting grinding unit. This stops the machine from slipping while maintaining a constant grindstone contact pressure and creating a true copy of the rail head and its profile over a pivoting range of 184°.

Which ROGRIND Head 1.0 variants are available?

  • 4-stroke petrol engine
  • Electric motor for grinding in emission-sensitive environments

Rail Head Profile Grinding Machine

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