Machining and fabricating in Chesterfield and Clay Cross for over 120 yearsEst. 2001 · Bryan Donkin lineage since 1803
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Service · Reverse engineering, repair and refurbishment

Reverse engineering, repair and refurbishment

Legacy parts reverse engineered, and worn or damaged parts re-machined, rebuilt or remade from a sample, up to 10 tonnes, so plant goes back into service without waiting months for a new casting.

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Medium to Large Manual Machining, Millbrook Precision Engineering, Clay Cross
Medium to Large Manual Machining

Back into service

Repair what can be repaired; remake what cannot

Large plant parts wear: bores go oval, faces score, keyways and threads fail. A new casting can take months; a repair often takes days. We assess the part, agree the repair with you, and re-machine it to restore the fit, whether that means re-boring and sleeving, re-facing, or machining oversize to suit a new mating part.

Where a part is beyond repair or no drawing exists, we can measure the original with our Faro portable arm and machine a replacement to match, working from your sample and the dimensions that matter to you.

Repair work is often urgent and usually a one-off. Our manual Sacem borer and experienced machinists are well suited to it: quick set-ups, no programming lead time, and judgement on worn surfaces.

Questions

Repair questions

More answers on the questions page.

Can you repair a part without a drawing?

Often, yes. We measure the original with a Faro portable arm and agree the critical dimensions with you before machining.

How quickly can you turn round a repair?

It depends on the part and machine loading. Tell us when you need it back and we will say straight away whether we can meet it.

Is it cheaper to repair or replace?

Usually repair, when the part can be restored. We will tell you honestly if a replacement makes more sense.

Quote

Send details of the part to repair

Tell us the material, quantity and when you need it. We reply with a price or a straight answer on whether the part fits our machines.

Telephone01246 862610
HoursMonday to Thursday, 07:30 to 16:00
Deliveries up to 30 minutes before closing
  • Free, no-obligation quotes
  • NDAs signed on request
  • ISO 9001:2015 · Cyber Essentials

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