CNC Repair: On-Site Diagnosis, Rebuild and Fix (UK)

One number for CNC repair. Mechanical, electrical or control, we handle it.

When a CNC stops holding tolerance, throws an alarm you can't clear, or won't run, you need an engineer who looks at the whole machine, not just a component. We cover mechanical, spindle, ballscrew, hydraulic, coolant and control-system repairs on all major CNC brands and controllers, across the UK.

Request a callback 0330 633 2321

Where we work

Walsall-based, Midlands-wide.

King CNC is based in Walsall, West Midlands. Our engineers cover Walsall, Birmingham, Wolverhampton, West Bromwich, Oldbury, Dudley, Coventry and Cannock as our same-day region, and travel out to Telford, Stoke-on-Trent, Stafford, Shrewsbury and the wider Midlands on a scheduled basis. For 24/7 breakdown callout within 1.5 hours of Walsall, call 0330 622 2321.

Why customers pick up the phone

Common reasons customers call us for CNC repair

If any of this sounds familiar, pick up the phone. Phone diagnosis is free and often saves the callout.

0330 633 2321 Mon-Fri 8am-5pm

Spindle noise, vibration, heat or won't start
Backlash, lost motion or positional error on an axis
Controller alarms you can't clear (Fanuc, Heidenhain, Siemens, Mitsubishi)
Machine has lost its datum or won't home
Drawbar not gripping tools cleanly, or releasing sluggishly
Tool change fault, carousel or ATC error
Hydraulic, pneumatic or coolant system pressure fault
Surface finish or part accuracy dropped off with no other change

What's typically included

The shape of the work.

No two machines or sites are the same. Scope on the day is set by what we find. Use this as a guide, not a checklist.

Mechanical repair: ballscrews, linear rails, way covers, drives
Spindle rebuild with precision bearings, dynamic balancing and run-out verification
Control-system fault-finding on Fanuc, Heidenhain, Siemens and Mitsubishi
Hydraulic, pneumatic and coolant system repairs
Electrical, drive and servo troubleshooting
Post-repair geometry verification with Renishaw ballbar where appropriate

Why choose KingCNC

What you can rely on.

One engineer who looks at the whole machine, not just a component
Common wear parts and consumables held in UK stock
Phone triage first so we don't travel without the right parts
Fixed-price options where the fault is well-defined

Brands & controllers we support

APEC
Hannsa - YLM Group
Baofeng
Mikron
Bridgeport
Hardinge
Quaser
Fanuc controls
Heidenhain controls
Siemens controls
Mitsubishi controls

Common questions

What people ask us about CNC Repair.

Straight answers. If yours isn't here, ring us and we'll answer it in a minute.

What does CNC repair cover?

Everything from mechanical and spindle work to control, electrical and hydraulic faults. If the machine isn't cutting the way it should, or isn't cutting at all, that's a repair job. Ballscrew wear, spindle noise, alarms you can't clear, tool change faults, hydraulic pressure drop, controller or drive issues all come under this.

Can you repair any brand of CNC machine?

Our engineers work on APEC, Hannsa - YLM Group and Baofeng as our own supported brands, plus Mikron, Bridgeport, Hardinge, Quaser and most other machines running Fanuc, Heidenhain, Siemens or Mitsubishi controls. If a job is outside what we can cover, we'll tell you before we quote.

Do you repair controllers (Fanuc, Heidenhain, Siemens, Mitsubishi)?

Yes. Alarm diagnosis, drive and servo faults, battery and backup issues, parameter and position recovery, encoder faults, and board-level work where it's economic. Many control alarms turn out to be mechanical or sensor-driven and we trace the actual cause rather than swap boards until the alarm clears.

How quickly can you get an engineer on site?

Most UK sites get an engineer next working day, often same-day for contract customers. First step is always a phone call so we can triage and, where possible, help you clear the fault without a callout.

Repair the machine, or replace it?

Age, residual value, parts availability and the pattern of previous faults all feed in. If the machine is on its third major repair in two years we'll say so. If it has life in it we'll scope the repair properly and keep it running. You get a straight answer, not the answer that bills more.

How much does CNC repair cost?

Depends entirely on the fault. Phone diagnosis is free. A single-visit mechanical fix is often the cost of the callout plus parts. A spindle rebuild or ballscrew replacement is a bigger job and we quote on scope before we start. No open-ended time-and-materials without a cap.

Request a callback

Talk to us about CNC Repair.

Tell us the machine, the controller, and what it's doing (or not doing). We'll triage before we travel and give you a straight answer on scope.

0330 633 2321 Mon-Fri 8am-5pm
service@kingcnc.co.uk

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