Reference Point of the Z axis

Reference Files Tools Required Torque Chart

Note: Most common screw sizes shown. Always consult manufacturers recommendations.
Screw Size	Grade	Torque Specs Range
M5	12.9	7.7-10.3 N-m
M6	12.9	13.1-17.6 N-m
M8	12.9	32.1-42.6 N-m
M10	12.9	64-84 N-m
M12	12.9	110-146 N-m
M16	12.9	274-365 N-m
M20	12.9	534-712 N-m
M24	12.9	923-1231 N-m

Tools Required
1.	HSK 100 test arbor #33.107053
2.	Dial Indicator
3.	Magnetic Base

Step 1:

The following procedure is taken from a Heller MC20 machine, although the H series machine uses an HSK 100, the same steps apply.

Step 2:

Z axis reference point using bushing on fixture

Tools needed:

A 250mm gauge block

Step 1:

If access to the blank pallet is not possible due to the fixture being installed, the correct axis position can be determined using the fixture bushing.

Each machine has a bushing on one face of the fixture that is calculated using the machine axes after machine installation and runoff has been completed. In addition, there is a plate with the axes positions of this bushing.

The Z axis position is determined by placing the gage block with minimal resistance between the spindle pads and bushing face. The actual Z axis position must then be calculated.