HYDROK
Use and limits of use
Order h49 7144.907-333
53
5.3.2 Clamping and release volume
Refer to the following table for details of the clamping and
release volume.
Size of the clamp-
ing device
Clamping volume
𝑽
/ 1 clamping de-
vice [
𝒍
]
Release volume
𝑽
/
1 clamping device
[
𝒍
]
52
0.022
0.022
65
0.028
0.028
100
0.081
0.081
100*
0.076
0.076
*
Aluminum variant
Table 17: Clamping and release volumes
Here is a sample calculation to explain the values.
Example:
HYDROK size 65
Stroke [release stroke]
𝐻 = 2.5𝑚𝑚
Maximum axial actuating force
𝐹
𝑎𝑥 𝑚𝑎𝑥
= 45𝑘𝑁
Maximum supply pressure
𝑝
𝑚𝑎𝑥
= 40𝑏𝑎𝑟
Volumetric flow rate of the hydraulic assembly
𝜗 = 4
𝑙
𝑚𝑖𝑛
Volumetric calculation:
𝑉 = 𝐴 ∗ 𝐻
𝑝 =
𝐹
𝐴
→
𝐴 =
𝐹
𝑝
=
45000𝑁
40∗10
𝑁
𝑐𝑚2
= 112.5𝑐𝑚
2
𝑉 = 𝐴 ∗ 𝐻 = 112.5𝑐𝑚
2
∗ 0.25𝑐𝑚
𝑉 = 28.125𝑐𝑚
3
= 0.028𝑑𝑚
3
= 0.028𝑙
5.3.3 Clamping / release times
Refer to the following tables of clamping and release times
for details of the hydraulic unit fitted. The volumetric flow rate
of the hydraulic unit is a factor here.
INFORMATION
None of the values shown here take account of the
pipework systems and fittings attached to the inlet and
outlet ends.
