HYDROK – Safety
SK mass m / [kg] and distance rs from the center of mass of clamping head segments to the
axis of rotation / [m]
Distance of center of mass rs in the smallest position
SK size
rs / [m]
SK mass m / [kg]
32
0,015
0,51
42
0,021
1,00
52
0,022
1,02
65
0,027
2,05
80
0,032
2,50
100
0,045
3,85
125
0,061
8,60
140
0,062
8,70
160
0,072
11,8
Table 6: SK mass m / [kg] and distance rs from the center of mass of clamping
head segments to the axis of rotation / [m]
S
c
kc
μ
a ,
μ
t
r
s
, m
From table 2
From table 3
From table 4
From table 5
From table 6
I
F
raderf
=
S
∗
c
∗(
1,6
∗(
F
sz
+
F
sk
)+
F
fz
)
The factor 1.6 takes possible fluctuations in oc-
curring force transmission into account.
II
F
sz
=
1,3
∗
√
(
(
F
c
∗
d
z
+
2M
B
)
d
sp
∗
µ
t
)
2
+(
F
c
+
F
B
µ
a
)
2
Turning [inside & outside]
F
c
=
1,3
∗
ap
∗
f
∗
kc
Drilling
[full drilling, two-edged tool in the direc-
tion of the workpiece axis]
F
B
=
0,45
∗
D
B
∗
f
n
∗
kc
M
B
=
f
n
∗
D
B
2
∗
kc
5700
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29
