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Mobile Line Boring

Supplier: True Blue Line Boring

Mobile line boring or onsite line boring is a specialised machining service where the use of conventional machinery used in engineering firms is not viable.


The setup involves finding the correct alignment for the existing hole/holes usually via a datum point. The in-situ machinery is then attached to the item to be repaired with bearing mounts either side of the bore.

The boring bar then runs through the bearing mounts while the drive unit and feed unit mount to the bearing mounts with the boring bar running through them.

The hole can then be machined to size and the ID welding process can then be done to make the bore ID smaller than original. After the ID welding is complete the bore can then be machined back to required specification using the boring bar.
The reasons that make the mobile line boring service more viable vary depending on the application:

  1. The item that needs machining may not be transportable to an engineering workshop. Being a mobile service allows us to do the job anywhere, anytime. We come to you.
  2. The cost to transport the item may be too excessive in comparison to using a line boring service.
  3. The item may not fit onto a conventional boring machine due to size or position.
  4. In most cases the mobile line boring service is much quicker reducing down time with that particular piece of equipment.
  5. Mobile line boring allows multiple pin positions to be set up at any given time allowing accuracy and reduction in time.
  6. In many cases components that need bore repair can be left on the machinery, reducing down time and eliminating the need for transport.
  7. During the welding process with newly fabricated components the welding process distorts and twists the steel which can affect any pin holes size and alignment. After fabrication is complete, line boring can be carried out to give correct alignment and size.