Our Services Specialists in on-site precision spindle taper seat repair and restoration. Serving all the United States and Mexico.
30 Tapers 40 Tapers 50 Tapers
Plus Machines
HSK-63A
Pre-Grinding Evaluation
We begin by determining the amount of taper run out using a precision test bar. Next, we determine taper contact using a bluing process. We also determine draw bar retention force using a precision dynamometer.
All measurements are documented and discussed with client, both before and after repair.
The Grinding Process
Specially designed grinding equipment is put to use by fine-tune adjustments. We use a highly precision taper air gage, which allows us to regrind the taper angle to the original machine specifications. Grinding continues until acceptable level of taper contact is achieved (usually no less than 90% contact and in most cases closer to 100%). At this point the grinding process is complete. All measurements documented prior to grind are performed again and re- documented.
After the results are reviewed by the customer and accepted, the grinding unit is disassembled from the machine. The machine tool is now ready for setup. Ready once again to run accurate precision parts.