Kaltenbach KPS Series, Руководство пользователя, Страница: 117 / 268

KPS SERIES
Technical Documentation
M-UK-KPS--06
11/02/03 Page 117 of 138
KALTENBACH
6.2.10 Grinding requirements knives
General instruction:
The knives of the shearing unit need to be grinded if the quality of the sheared surface
decreases. The knife needs to be grinded at the cut surface with a roughness (Ra) of
max. 1,6 µm.
Measure the cutting clearance set previous to demounting of the knives. (During the
cutting movement in hand operation, when the shears are next to each other, press
emergency stop and measure the tolerance with a feeler gauge)
Have your grinder measure the hardness of the knife after grinding. This should be
approx. 57-58 Hrc.
It is recommended to grind the knives in steps of 0,5 mm until both sides of the knife
are sharp again.
When replacing the knives, justify the loss from grinding by filling plates of 0,5 or
1,0mm. In this way the correct tolerance is set again.
Grind the knives according to under-mentioned drawing.
Grinding angle shear (SC type)