HYDROK
Use and limits of use
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5.2.5.2 Further to Principle 2:
𝑭
𝒕
≤ 𝑭
𝒕 𝒎𝒂𝒙
When using a tailstock, due to the additional expanding force
exerted on the clamping head chuck, the permitted maxi-
mum tailstock force is limited to the following values in ac-
cordance with the size of the clamping head chuck:
Size of the clamping head
chuck
𝑭
𝒕 𝒎𝒂𝒙
[𝒌𝑵]
32
3
42
6
52
6
65
8
80
8
100
8
125
8
140
8
160
8
Table 12: Maximum permitted tailstock force
NOTE
Serious damage to materials on clamping equip-
ment and machine tool due to non-adapted forces!
The total of set tailstock force and axial clamping
force during the clamping process must be ex-
ceeded by the release force.
When operating with a tailstock, using an end-stop in the
clamping head chuck ensures that the workpiece is not dis-
placed axially.
5.2.5.3 Further to Principle 3:
𝑭
𝒄
≤ 𝑭
𝒄 𝒎𝒂𝒙
The cutting force for turning operations can achieve very
high levels, especially if the workpiece does not protrude far,
although machining involves no slip or leverage forces that
could displace the workpiece. Therefore the cutting force
also needs to be limited to reflect the size of the clamping
head chuck to prevent damage to the clamping head chuck.
Size of the clamp-
ing head chuck
Up to total chuck
length
𝑳[𝒎𝒎]
𝑭
𝒄 𝒎𝒂𝒙
[𝑵]
32
< 120
1900
42
< 125
3600
