CNC Spindle Breakdown
Dolby MTS are a Midlands-based company specialising in CNC spindle repairs for a wide range of machine tools. With years of experience in the industry, we offer expert repair, refurbishment, and rebuild services to ensure that your CNC machinery operates at its best, reducing costly downtime.
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Speak to an expert today on how we can help you with your CNC Spindle Breakdown
Why Choose Us for CNC Spindle Repairs?
CNC spindles are the heart of your machine tools, and when they fail or show signs of wear, it’s crucial to act quickly to prevent further damage. We understand the urgency of spindle failure and the impact it can have on your production schedule. Our team is dedicated to providing fast, reliable, and cost-effective spindle repairs to keep your machines up and running.
Whether you’re dealing with a CNC machining centre spindle, a CNC lathe spindle, or a special-purpose CNC spindle, we’ve got you covered. Our engineers are trained to work on a wide variety of machines and spindles, ensuring a precise and high-quality repair every time.
CNC Spindle Experience
With a deep understanding of CNC machines, we can provide high-quality spindle repairs, rebuilds, and refurbishments, ensuring that your equipment operates to its original specification and beyond. Our engineers are trained to recognise the nuances of each brand and model, which allows us to deliver tailored repairs that optimise performance and extend the life of your spindles.
These include but are not limited to:
Matsuura, Mazak, Doosan, Daewoo, HAAS, Makino, Mori Seiki, SNK, OKK, Niigata, Harrison, Victor.
Sectors We Cover
Motorsport
Oil & Gas
Medical
Aerospace
Nuclear
CNC Spindle Types
We repair and rebuild high-speed CNC spindles for machining centres, including CNC lathe spindles. Our engineers have the knowledge and equipment to provide a thorough, professional repair service bringing your spindle back to factory specification.
Our engineers also have expertise in drawbar failure repairs. The image provided shows a spindle taper, demonstrating a condition known as “browning.” Browning occurs due to fretting between the tool and spindle taper, caused by a reduced pull force of the drawbar. This decreased force leads to improper clamping, allowing relative motion between the tool and taper, which accelerates wear and damage. The browning results from iron being drawn out of the steel, forming an oxide layer due to the heat and friction generated during fretting.
If you need advice on spindle maintenance, repair, or handling spindle breakdowns, please feel free to get in touch.
Get in touchCNC Spindle Repair and Rebuild Process
If your spindle requires a full rebuild, we offer a comprehensive CNC Spindle Rebuild Full-Service Package that ensures your spindle is restored to its factory specifications. Our rebuild process includes:
- Diagnosis and Disassembly: The spindle is carefully removed from the machine and inspected.
- Quality Control: We enter the spindle into our quality control system, where each part is carefully examined for wear or damage.
- Component Replacement/Refurbishment: Any worn-out parts are replaced or remanufactured to ensure the spindle performs to the highest standards.
- Precision Assembly: The spindle is reassembled in a temperature-controlled clean room with super precision bearings, ensuring accuracy and performance.
- Balancing & Accuracy Checks: The spindle is balanced to the highest standards and all accuracy checks are performed to meet the machine’s original specifications.
- Drawbar Pull Force: The drawbar pull force is checked and set to ensure smooth operation.
- Run-In Programme: The rebuilt spindle is tested through a run-in programme to ensure all functions work as expected.
- Final Inspection: The spindle undergoes a final inspection before being returned to your machine for installation.
CNC Spindle Repair FAQ's
Preventative maintenance is key to avoiding spindle breakdowns. Regularly check for signs of wear, ensure proper lubrication, and monitor spindle temperatures to avoid overheating. Additionally, performing routine inspections and ensuring proper calibration can help catch issues early before they lead to a breakdown. Always follow the manufacturer’s recommended maintenance guidelines to keep your spindle in good condition.
The repair time for a CNC spindle depends on the severity of the breakdown and the specific components that need to be repaired or replaced. Simple repairs, such as bearing replacements or lubrication issues, can often be completed in a few days. However, more complex issues, like electrical faults or severe damage, may take longer. Our goal is to minimise downtime and provide efficient, high-quality repairs to get your CNC machine back in operation as quickly as possible.
CNC spindle breakdowns are often caused by factors such as worn bearings, lack of lubrication, overheating, electrical faults, or mechanical damage due to crashes or overloading. Regular wear and tear, contamination from dust or coolant, and misalignment can also contribute to spindle failure over time.
When repairing a CNC spindle breakdown, the process typically involves a full inspection to identify the root cause of the failure. This includes checking the bearings, seals, and shafts, as well as testing the spindle’s electrical components. Once the problem is identified, repairs may involve replacing worn or damaged parts, correcting misalignments, and rebalancing the spindle for smooth operation. After repairs are completed, the spindle will undergo rigorous testing to ensure it’s functioning correctly.
If your CNC spindle breaks down, the first step is to stop using the machine immediately to prevent further damage. Then, contact a professional spindle repair service to assess the issue. Common symptoms of a spindle breakdown include unusual noises, overheating, vibrations, or loss of precision. A trained technician will diagnose the problem and determine the best course of action for repair.
