The Bridgeport Torq-Cut 22 is a smaller CNC vertical machining center. It comes fitted with a grease lubricated and belt driven spindle capable of running up to 7,500 rpm.Read More
Mitsubishi MH-60 Spindle Repair
The Mitsubishi MH-60 is a CNC horizontal machining center. It comes fitted with an oil mist lubricated and stator driven spindle capable of running up to 6,000 rpm.
When this Mitsubishi MH-60 spindle arrived at Northland Tool and Electronics we completed a full breakdown and evaluation. Upon inspection we found a lot of dimensional deviations that will need to be addressed. First, the taper was very beat up and worn with several windows, 30-40 microns runout, and below gaugeline. Second, the gripper fingers were worn with a low drawbar pull force, at 3,600lbs (standard is 4,136-6,204lbs). The drive dogs were also worn and will need to be addressed. Third, the rear of the shaft had chrome chipping off at the two key ways and the rear journal was -8/-13 with a deep hole. (ISO is +3/+13) Fourth, the rront journal has 6-11 microns runout with light pre-existing score lines. Lastly, the housing has pre-existing light scratch marks and the front shaft nut spanner holes have pre-existing damage.
The following actions were performed on this Mitsubishi MH-60 spindle:
- Clean, inspect overall dimensions
- Weld and machine drive dogs
- Grind, chrome plate, and finish grind the shaft taper, front journal, and rear journal
- Weld and machine front shaft spanner nuts
- Replace bearings with customer supplied bearings
- Replace grippers, bellevilles, screws, and o-rings
After reassembly of all components, adjusting bearing preload, and undergoing break-in and testing procedures, this spindle passed our final quality inspection before being returned to our customer with a 1-year warranty.
Does your spindle need repair? GET A QUOTE TODAY
Mitsubishi M-V60E Spindle Repair
This exterior of this Mitsubishi M-V60E spindle was corroded and covered with sticky coolant residue when we received it. It was also apparent that the… [...]
Mitsubishi M-V5B Spindle Repair
This Mitsubishi M-V5B spindle was completely disassembled and evaluated when it arrived at Northland Tool and Electronics. Upon inspection we noted that the bearings were… [...]
Mitsubishi M-H60D Spindle Repair
This Mitsubishi M-H60D spindle was sent to Northland Tool and Electronics for a full breakdown and evaluation. Upon inspection we noted that the front bearings… [...]
Mori Seiki MH-630 Spindle Repair
This spindle came in with the coupling for the drive motor attached to the rear of the shaft. Our incoming evaluation found the mating surfaces… [...]
Mori Seiki NH5000 Spindle Rebuild
Our customer sent in this Mori Seiki NH5000 spindle indicating that the spindle was making excessive noise during operation. The bearings felt very rough when… [...]