We offer Mazak live tool repair services for all Mazak precision tools. Our repairs will typically cost 1/2, or less than 1/2 the price of a new live tool. Plus, we can upgrade the original non-sealed bearing design, to a sealed / shielded bearing design at all bearing locations. We keep bearings in stock for these live tools to allow us to keep pace with our repair volume. Lead-time can be as short as 2-3 days.
- Most live tools exceeding 0.001″ runout are due, or almost due, for a repair. 0.0008″ or less is the target runout for a live tool.
- Live tools like to rest as long as they cycle at full speed or maximum load. 5 minutes is a typical maximum run time followed by a 5 minute rest.
- 150 to 160F temperatures are common when running at full load.
- Disassembled and cleaned.
- Inspected dimensionally and visually.
- Quoted for repair.
- The spindles are assembled with new precision grade sealed / shielded bearings.
- If necessary, the spindle is ground to true the taper, and / or the bearing journals are plated and re-ground to proper bearing tolerance and total indicated runout.
- As required, the lower, middle and upper bearing housings may be bored, bushed, and reground to proper concentricity and dimensional tolerance.
- The spindles are re-assembled.
- The spindles are installed in the housing.
- The unit is run tested for 5-10 hours with testing of vibration, temperature, and noise levels
Why should you have your multi-spindle boring head, high speed right angle head, or other aggregate head, repaired by Ekstrom-Carlson?
- Lead-time: 1-2 Week average for multi-spindle heads, including tear down, inspection, quotation, and repair. 3-5 days for right angle heads and live tooling repairs.
- Price: Much lower price than the OEM, or the OEM distributor.
- USA repair: We repair the unit in Rockford, Illinois. It is not shipped overseas, as is often the case for various machines.
- Parts repair: Where possible, we will save money by repairing motor spindles and gear spindle shafts. Some manufacturer’s representatives will always quote a brand new unit if the unit drive shaft is damaged, or if the bearings require replacement. 75% of the time, we can save the original unit at less than 50% the cost of new.
- Sealed bearings when available and possible conversion to ceramic bearings.
- Free inspections.
- The condition of the machine before the rebuild along with accurately diagnosing any and all problems.
- Installing proper replacement parts including spindle grade bearings and parts with OEM tolerances that are known only to OEM’s such as Ekstrom-Carlson.
- Precision tolerance machinery and tooling including grinding, plating and balancing equipment.
- Experience and quality workmanship of the repair technician.
Live Tool Repair • Case Studies
Ekstrom Carlson MRDFD-12 Right Angle Drill Head
Ekstrom Carlson MRDFD-12 Right Angle Drill Head Published: 02/27/26 08:30AM Professional Inspection and Repair for the Ekstrom Carlson MRDFD-12 Right Angle Drill Head If your Ekstrom Carlson MRDFD-12 Right Angle Drill Head is showing signs of wear, noise, or performance issues, professional help is essential. At Ekstrom Carlson, we focus on expert inspection, repair, and rebuilding services for industrial spindle … Read More
Manufacturer: MT Part Number: MAT.MTA2933-1
Published: 03/02/26 03:15PM Professional MT MAT.MTA2933-1 Service Description At Ekstrom Carlson, we specialize in the repair and servicing of MT components, including the MAT.MTA2933-1. This component, identified by its model number MTA2933-1, is integral to mechanical assemblies requiring precise rotational capabilities. With a maximum operating speed of 6000 RPM and a gear ratio of 1:1, it is designed for high-speed … Read More
Manufacturer: BENZ Part Number: 114DA12700S0-Z
Published: 03/02/26 03:13PM Professional BENZ 114DA12700S0-Z Service Description At Ekstrom Carlson, we specialize in the repair and servicing of BENZ components, including the high-performance 114DA12700S0-Z. Known for its precision engineering and reliability, this German-made spindle is designed for high-speed machining applications. With its robust construction and advanced functionality, it plays a crucial role in various industrial settings, from milling to … Read More
Manufacturer: Ekstrom Carlson Part Number: EC057-1049
Published: 03/02/26 03:12PM Product Overview We designed and manufactured this precision component, the EC057-1049, to meet the highest standards of accuracy and reliability. Crafted from polished metal, likely stainless steel, this tool is built for applications requiring exceptional precision. Its cylindrical shape with a flat projection ensures it performs optimally in various machining or assembly tasks. As the creators of … Read More
MT MTA2933-1
Published: 03/02/26 10:41AM Professional MT MTA2933-1 Service Description At Ekstrom Carlson, we specialize in the repair and maintenance of precision components like the MT MTA2933-1. This essential mechanical part, associated with advanced industrial machinery, demands expert handling and meticulous attention to detail. Our skilled technicians are equipped to restore your component to optimal condition, ensuring seamless integration with your existing … Read More
BENZ 114DA12700S4-Z
Published: 03/02/26 10:35AM Professional BENZ 114DA12700S4-Z Service Description Ekstrom Carlson is proud to offer expert repair services for the BENZ 114DA12700S4-Z spindle unit. This precision component is integral to high-speed CNC machinery, providing unmatched reliability and performance. Our specialized service ensures your spindle operates at peak efficiency, with comprehensive repairs tailored to the specific demands of this German-engineered masterpiece. Our … Read More
NSK MRDFD-10 High-Speed Spindle
NSK MRDFD-10 High-Speed Spindle Published: 02/20/26 08:16AM Expert Repair for Your NSK MRDFD-10 High-Speed Spindle The NSK MRDFD-10 High-Speed Spindle is a precision industrial spindle, designed for demanding applications with a maximum speed of 60,000 RPM, 350W power, and 3-phase operation. When your NSK spindle needs attention, trust Ekstrom Carlson for professional inspection, repair, and rebuilding services. We do not … Read More
Model Unknown
Model Unknown Precision Step Drill Bits: Custom Solutions for Demanding Applications When your production line requires a step drill bit that’s truly unique, off-the-shelf just won’t cut it. At Ekstrom Carlson, we specialize in the manufacturing of custom cutting tools, including custom drill bits and step reamers designed to exacting specifications. Whether you need a carbide step drill for challenging … Read More
Unknown Manufacturer Model Unknown Model Unknown
Unknown Manufacturer Model Unknown Model Unknown Expert Industrial Spindle Repair Services If your operation relies on a spindle assembly from an unknown manufacturer and model, Ekstrom Carlson is here to help. Our team specializes in the inspection, repair, and rebuild of industrial spindles—regardless of origin or model designation. We understand that even unidentified spindle units are critical to your production, … Read More
Fischer HF 80.2 High-Frequency Spindle
Fischer HF 80.2 High-Frequency Spindle Professional Spindle Repair for Fischer HF 80.2 High-Frequency Spindles Ekstrom Carlson is your trusted partner for the inspection, repair, and rebuild of the Fischer HF 80.2 High-Frequency Spindle. Featuring specifications such as 40,000 RPM, 2.2 kW power, 220V, 3-phase operation, and IP54 protection, this industrial spindle is designed for high-speed precision machining. Our team has … Read More