This GMN Spindle is an tool and cutter grinder and runs at 10,000 rpm. This is one the smaller spindles I’ve seen in the shop since last February when I started here. This spindle has a special face to taper contact similar to the BigPlus taper which helps prevent tool chatter. I was able to snap some shots of Denton setting up the spindle on the test stand and running it up:
Northland Tool & Electronics is proud to be able to provide spindle repair and spindle rebuilding services across the United States and beyond. Thanks to our blog, we are able to show you images and share stories about spindle repairs such as this Weiss Bridgeport Spindle Repair which came from Knoxville, TN. Or this Mori Seiki CL203B Spindle Repair that came from Chicago, IL.
Omni Turn Spindle Repair
We received this from a company that produces precision parts for the medical, automotive and electronics industries. The spindle had 70 microns of run out in the taper. The customer needed better run out in order to provide their customers with quality parts.
It was determined that the taper would need grind, chrome plate and finish grind. The shaft was sent into our grinding department and they were able to bring the taper back to 2 microns of run out. After assembly and inspection the spindle was sent to the customer. They were very satisfied with the run out on the spindle and its performance in the machine.
GMN TSSV110 Spindle Repair
This spindle came from a customer that we have worked with extensively to develop a repair program that fits their needs. They have an inventory of spare spindles on hand but did not wish to carry the repair costs in their inventory. Together we decided that they would send in the spare spindle inventory and Northland Tool & Electronics will break down the spindles, provide a cause of failure and a repair price. Once the spindle is approved the spindle goes into our system to be repaired. Once the spindle is rebuilt it then goes onto our environmentally controlled storage room until the customer requires it. Our customer calls us when the spindle is needed and we ship and invoice it that same day.
However with this spindle the customer needed it back as soon as possible. We were able to quote and rebuild the spindle within 4 days. The customer was up and running within a week. We are always looking to help our customers out. This could be turning a spindle around within a week or holding a rebuilt spindle until it is required in their facility. Contact us if you have any special requirements with your spindle.
Mori Seiki MV40 Spindle Repair
We repair several spindles from our customers in Canada. This spindle came to us in very rough shape. The spindle had a damaged shaft taper, broken drive dogs, coolant plungers were worn and the shaft journals were undersized. We were able to repair the drive dogs in our machining department and fix the shaft dimensional issues by grind, chrome plate and finish grinding the shaft taper and bearing journals. This process can be done for a fraction of the cost that the OEM would charge to replace the shaft. In some cases we can improve the shaft design and make it more robust than the original. Our experienced technicians then assembled the spindle in our clean room and test run, balanced and performed our rigorous final quality checks. The spindle was shipped back to the customer.
Some of the fears we hear from prospective customers in Canada is the border crossing. Please call us if you have any questions and we can provide a solution. Our expert-shipping department handles all of the commercial invoices and sets up important documents with the customs brokerage. We experience very few border delays. View Our Mori Seiki Spindle Repair Page Here.
Heald 405 Spindle Repair
This belt driven ID grinding spindle came to us from one of our automotive parts manufacturers. They were having part quality issues and the bearings were starting to make noise. When we disassembled the spindle we found that contamination had gotten into the front bearings. The front and rear housing dimensions were out of ISO spec by 30 microns and the rear pulley taper had run out.
We had to grind plate grind the housing and kiss grind the pulley taper. We then assembled the spindle in our clean room and test ran it at 35,000 rpm. After final QC the spindle was packed and shipped directly to our customer. View Our Heald Spindle Repair Page Here.
Ingersol T1500 Spindle Repair
This spindle, from the automotive industry, came to us from a long time customer of ours through integrated supply. The 50 taper was worn and the gearbox was leaking oil into the front bearings causing them to fail. Our evaluation found the graphite seal between the transmission and the main spindle was damaged. We had to custom make a replacement seal as the OEM does not stock the replacement part nor could they obtain one.
This spindle was ground on one of our Kellenburger grinders and all the replacement parts were manufactured in our specialized machining department. The spindle was assembled in our clean room and test run. The test stand for this spindle was specially made by Northland Tool. It is complete with vacuum system, oil pump and a specialized drive system. This allows us to duplicate the machines support systems letting us run the spindle as close to “real life” as possible. It has taken over 30 years for Northland Tool to acquire the knowledge and equipment to complete these types of repairs. Use caution when choosing your spindle repair company as many will portray they are equipped when in fact they are not.
Smith Renaud BA-0025 Spindle Repair
Northland Tool & Electronics has been rebuilding these Smith Renaud spindles for our customer for over 15 years. When we first started our repair program with them we would get 2 to 4 spindles to repair per month. We worked closely with them to eliminate main causes of failure. As you can see in the picture we added an air purge system to the front and rear of the spindle along with making changes to the labrynth systems. We also reconditioned the shaft and housing journal fits to bring them back to OEM specifications.
15 years later we receive 1 spindle every 2 to 3 years from them to repair. We have earned a customer for life and they have saved countless dollars in spindle repair and increased output due to less machine downtime and better part quality.
Mori Seiki SL154
Mori Seiki SL154 Spindle Repair
This spindle was crashed causing bearing failure and alignment pin damage. What makes this repair unique is the magnetic rotor. Special care must be taken throughout the repair process to make sure the rotor is not damaged or picks up contaminates. Our technicians are required to remove all necklaces before working on this type of spindle as it may cause a choking hazard.
Our customer is in the automotive industry and needed us to complete this repair as quickly as possible to get their line back in service. We were able to fulfill their request and the machine is operating flawlessly as we speak. View Our Mori Seiki Spindle Repair Page Here.
Koyo KC700 Centerless Spindle Repair
We have removed the details of this spindle repair from our site at the request of Koh Ueda, President of Koyo Machinery U.S.A.
Northland Tool & Electronics provides over 30 years of comprehensive experience and over one hundred years of combined technician knowledge. We have rebuilt machine tool spindles of every type including machining centers, grinders, printed circuit board, woodworking – from 120,000-rpm grinding spindles to 2,500-pound milling spindles and from many manufacturers, including Koyo, GMN, Gamfior, Makino, Mori Seiki, OKK, Okuma Howa and many others. This solid foundation of service, coupled with management that is dedicated to integrity and a rigid adherence to a well-defined code of ethics, is used as the base to provide to you the most professional and comprehensive repairs, thereby minimizing your machine downtime, enhancing machine performance, and increasing your profitability.
For details on specific repairs we have done, including improvements we can make to the existing spindle design; please see any other model of spindle within this blog or call us directly at 800-774-6353.