HSK coolant tubes
HSK form A, -B or -D holders must be equipped with a coolant tube.
Using holders without a coolant tube could cause unseen machine spindle damage.
DIN 69893 Form C, -E and -F do not require a coolant tube. Through coolant and
sealing functions are provided by the locking unit.
The coolant tube is ideally mounted in vertical direction – from the bottom to the
top. In this manner the sealing ring is prevented from being compressed during
location which would cause the loss of its sealing function.
After mounting, the coolant pipe can be moved only to a minimum degree
according to DIN (± 1°).
O-Ring (grease prior to assembly).
union nut
coolant pipe
coolant tube
1. The HSK holder must be clean, free of swarf and undamaged.
2. Grease the O-rings prior to assembly.
3. Centraly insert the complete coolant tube (coolant pipe, union nut and
2 O-rings) in the HSK with the assistance of the socket spanner.
Torque fi gures
for
HSK Mt (Nm)
32 7
4. Screw in the coolant tube and tighten (see table for torque fi gures) 40 11
5. Check coolant pipe for radial mobility. 50 15
63 20
80 25
100 30
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Installation
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KEMMLER 13. 34