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Spindle Repair Services
Spindle rebuild, repair and servicing specialists, with on-site engineer support available. Our experienced engineers deliver a professional, friendly service and a high-quality, efficient turnaround, working closely with customers at every stage.
When a spindle fails, production can stop without warning. At Machine Tool Technologies (MTT), we provide specialist spindle repair services for manufacturers that need fast, accurate and dependable support. Our services include spindle analysis, fault diagnosis, spindle rebuilds, testing and servicing, helping restore precision, reliability and performance across a wide range of CNC machine applications.
Why choose MTT for spindle repair services?
We support customers across the UK with high-quality spindle repair services designed to minimise downtime and return failed units to service as quickly as possible. From initial assessment through to final testing, our engineers work closely with your team to deliver a professional, transparent and technically robust solution.
- Comprehensive spindle repair and rebuild capability
We carry out spindle repairs, rebuilds, servicing and component replacement for a wide range of CNC spindle types and machine tool applications. - Detailed spindle analysis and fault diagnosis
Every repair begins with careful spindle analysis to identify wear, damage, performance loss and root-cause issues before work begins. - Precision repairs to OEM standards
Our engineers rebuild and restore spindles to original manufacturer tolerances wherever required, supporting reliable performance and long service life. - High-quality parts and controlled testing
We use quality bearings, seals and replacement components, with thorough checking and testing to confirm spindle condition before return. - Fast turnaround with on-site support available
We understand the cost of machine downtime and aim to provide efficient turnaround times, with on-site engineer support available where needed. - Trusted UK spindle repair specialists
Based in Lancashire, MTT supports customers across England, Scotland and Wales with responsive spindle repair services backed by experienced engineers.
Spindle Brands We Repair
Our Spindle Repair Process
We manage every repair in-house for full quality control—from diagnostics to dynamic testing:
1. Initial Testing & Inspection
Advanced tools including vibration analysis and thermal imaging identify issues like imbalance, overheating, or bearing failure.
2. Root Cause Analysis
We investigate the core issue—whether contamination, poor lubrication, or mechanical wear—and document all findings.
3. Component Examination
All bearings, shafts, housings, and seals are carefully assessed for fatigue, damage, or deformation.
4. Transparent Quotation
You’ll receive a detailed failure report and fixed-price quote before any work begins.
5. Precision Rebuild
We recondition or replace all critical parts, then clean and reassemble your spindle in a controlled cleanroom environment.
6. Final Balancing & Testing
High-speed balancing, load simulation, and final verification ensure OEM-level performance.
Industries We Serve
Our spindle repair services support key sectors across the UK:
- Aerospace
- Automotive
- Precision Engineering
- Toolmaking
- General Manufacturing
Whether your spindle is used in milling, grinding, turning, or boring applications—we’ve got you covered.
Spindle faults we are asked to fix
Most spindles reach us for one of a small number of reasons. The signs are usually visible on the machine before the spindle stops:
- Grinding, whining or rattling noise, which usually points to bearing failure
- Vibration that was not there before, often from imbalance
- Parts drifting out of tolerance, or a poor or inconsistent surface finish
- Overheating, commonly caused by a lubrication problem or misalignment
- Damage after a crash into a fixture or workpiece
If you notice any of these, have the spindle inspected promptly. Recognising the early signs can prevent a costly breakdown.
What a rebuild involves: a recent example
An aerospace customer sent us a GMN high frequency milling spindle that had crashed into a fixture. The impact had broken a piece out of the front locknut and labyrinth and damaged the bearings. Our engineers stripped the spindle and assessed every component. The front and rear ceramic angular contact ball bearings, the front locknuts, the drawbar springs and all screws, O rings and seals were replaced.
Cleanliness matters most at this stage. On an oil/air lubricated spindle there are many cross drillings and ports, and any debris carried through to the new bearings will cause early failure.
After assembly the spindle was run closed loop to check the built-in encoder, while we monitored temperature, vibration, current and lubrication flow. It was then trim balanced at top speed before going back to the customer.
Read the high frequency milling spindle rebuild case study
Spindle brands we repair
We repair and rebuild spindles from most manufacturers, including:
Bridgeport, Cytec, DMG, Fischer, Haas, Hardinge, Hiteco, Homag, Hurco, Kessler, Okuma, Omlat, PDS, Setco, SNK, Step-Tec and Weiss. We also work on GMN, HSD and Jaeger spindles. See all spindle brands.
Related spindle services
A repair is often only part of the job. We also provide spindle rebuilds, spindle testing, spindle alignment, spindle balancing and spindle vibration analysis, so the cause of the failure is dealt with as well as the damage.
Who you are dealing with
Machine Tool Technologies was formed in 2001 and works from Chorley, Lancashire. Our engineers bring 30 years of experience to spindle repair and rebuild work. Our quality system has been registered to ISO 9001 since 2006, and we also hold ISO 14001 and ISO 45001. We collect and deliver spindles, and on-site engineer support is available where the spindle cannot leave the machine. We support customers across England, Scotland and Wales, in sectors including aerospace, automotive, precision engineering and toolmaking.
Frequently asked questions
How do I know my CNC spindle needs repair?
The common signs are unusual noise (grinding, whining or rattling), more vibration than normal, parts going out of tolerance, a rough or inconsistent surface finish, and overheating. Any one of these is a reason to have the spindle inspected.
What does your spindle repair process involve?
We test and inspect the spindle, find the root cause, examine every bearing, shaft, housing and seal, and send you a failure report with a fixed-price quote before any work begins. We then replace or recondition the worn parts, reassemble in a clean environment, balance the spindle and run a final test.
How long does a spindle repair take?
Every spindle job is different. We aim to return your spindle as quickly as possible once our engineers have inspected it and completed the work. Turnaround can be as little as three working days where parts are available, and is typically 3 to 10 working days depending on the fault and the parts needed.
Do you repair spindles on site?
On-site engineer support is available where it is needed. Full rebuilds are carried out in-house, where we control cleanliness, balancing and testing. We offer a collection and delivery service.
Is the repair covered by a warranty?
Yes. All our spindle repairs are backed by a warranty, with ongoing service support. The terms are confirmed in your quotation.
How can I stop the same failure happening again?
Inspect the spindle regularly, keep lubrication correct, keep the spindle clean, avoid loading it beyond its rating and make sure it is installed and aligned properly. Spindle vibration analysis picks up bearing wear and imbalance early, before they cause a breakdown.
Trusted and Responsive
We pride ourselves on being a responsive, transparent, and reliable service partner. Our support includes:
- Rapid response for breakdowns
- Collection and delivery service
- Ongoing service support and warranty
Get in Touch
Restore your spindle. Restore your productivity.
Call our expert team today on 0845 077 9345 or fill out our contact form to book your CNC spindle repair.
“MTT Successfully repaired several spindles within a short period time ensuring our
machines were back to full productivity in no time.”