Technical Information

Technical Information
Technical Information
KM Manual Clamping System
KM Manual Clamping Operating Instructions (KM32–KM80)
Locking
Before inserting the KM cutting unit into the clamping mechanism (Figure 1),
clean the contact face and taper.
KM Manual clamping units require a torque wrench for proper operation. Turning
the torque screw clockwise locks the cutting unit in position. For maximum safety,
tighten the torque screw to the specified torque. Using a torque wrench ensures
that the proper clamping forces are exerted.
KM Manual Clamping System • Operating Torque
KM
size
torque
(ft. lbs.)
torque
(Nm)
Operating Position
With the balls locked in position, and the face and self-locking taper
fully engaged, the cutting unit and clamping unit are rigidly secured
together (Figure 2).
Unlocking
Rotate the torque screw counterclockwise until initial resistance is felt. In this
position, the locking balls are free of the cutting unit, but the taper interference is
still holding the KM unit in the clamping unit. At this point, the bump-off pin is in
position to free the cutting unit from the interference fit.
Continue to rotate the torque screw slowly until the cutting unit is no longer
making face contact (Figure 3) and is released from the taper. The torque screw
will stop rotating and more resistance will be felt. Do not turn the torque screw
any further.
CAUTION
Continuing to rotate the torque screw may damage
the clamping components.
actuation
drive size
KM32 7–9 10–12 5mm
KM40 9–12 12–16 6mm
KM50 20–25 27–34 10mm
KM63 35–40 47–54 12mm
KM80 58–63 79–85 14mm
Figure 1
Contact Face
Taper Clockwise
for Locking
CAUTION
Over tightening can cause damage to the clamping mechanism.
Figure 2
Figure 3
Counterclockwise
for Unlocking
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