Picture above: Defective spindle taper SK40
Picture above: Regrinding of spindle taper SK50
Picture above: Regrinded spindle taper Sk40
Just one moment of not paying attention by selecting the wrong program or inserting the wrong tool or simply through carelessness – and it has already happened! The tool crashes into the machine and damages heavily the concentricity of the machine. Especially on large machines, repair is very expensive and time consuming. And who likes production downtimes of one week or more and accept such high production losses?
We offer you to grind your spindle tapers back to specifications in-place in the machine, to insure greater concentricity to the bearings and thus minimum runout. Regrinding in-place also eliminates the tear down necessary to remove the spindle and lessens the downtime to a few hours.
What we need:
What we do:
Picture above: Original taper gauges according to DIN
Picture above: Destroyed spindle taper after crash
Picture above: Regrinded spindle taper – taper contact and concentricity repaired
Only a perfect taper seat guarantees a long life-time of spindle and tools as well as a low reject rate caused by runout. Considering that a machine should have the best possible tolerances as well as minimum down time, spindle taper grinding is a very cost effective alternative to the normal way of spindle repair.
Picture above: Regrinding of the external spindle taper of a surface grinding machine
Picture above: Original inspection report