FAST RELIABLE MAINTENANCE
AND REPAIR OF DIESEL
ENGINES

About us

Recently we got a Rottler EM109H machine at our shop in the Netherlands.
It is a CNC machine especially made for boring and surfacing large engines to get them to spec again.

  1. Line boring, main bearings and cam bearings.
  2. Boring and sleeving the counter bore of the cilinder liner.
  3. Machining the thrust face for the liner to get the collar height in spec
  4. Surfacing the deck using a large flycutter
  5. Water corrosion repair of the deck
  6. repairing for example idler gear boring, sleeving


Assembly of the milling head

Checking and adjusting


Rottler EM 109H



The Rottler EM109H is the largest machine available.

Horizontal Movement (X Axis)
Left and Right Directions - 248” (6300mm)

Horizontal Movement (Y Axis)
In and Out Directions - 24” (610mm)

Vertical Movement (Z Axis)
Up and Down Directions - 36” (915mm

Machine weight 22.500 kgs 

Line boring

Line boring isn't done in the conventional way using a long boring bar, but using the CNC capabilities of the machine.

Thrust Bearing and Block End machining can be done during same set up with Rottler’s Special Right Angle Drive Tooling.


  Rottler Promo

In this video Is shown how  "circular interpolating machining" is used to get a 100% flat surface.

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Any questions ? Feel free to contact us.

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