STP
Stationary chuck, pneumatic Ø 125 - 280 mm
■ Built-in cylinder ■ With through-hole
INCH SERRATION 3 jaws
Application/customer benefits • Self centering stationary chuck used on milling machines / machining centers / special machines
• Low profile - large open center • Easy installation on the machine Technical features • Stationary chuck consisting of a 3-jaw chuck with a built-in pneumatic cylinder • Operating pressure from 2 to 10 bar Caution! A service unit consisting of a filter, dryer and oiler must be installed in the supply line. Standard equipment Stationary chuck 1 set T-nuts with bolts 1 set of soft blank top jaws 2 elbow fittings G1/4” (G1/8” on STP 125) Ordering example Stationary chuck STP 280 (3 jaws)
I
a b
M
N
α
α
E
H 1
K
H 2
G
Subject to technical changes. For more detailed information please ask our customer service.
Technical data
SMW-AUTOBLOK Type Id. No.
STP 125 013904
STP 160 013905
STP 240 053273
STP 280 052810
A B C
mm mm mm mm mm mm mm mm mm mm mm mm mm mm inch mm mm inch mm mm mm mm mm deg. mm bar cm 2
136
171
240
284
26
38
78
92
156
201
250
316 102
D H6
34
46
86
E F
8
7.5
7
6
220 160
275 206 130
320 250 134 18.5
400 316
G H
102.5
155.5
H1 H2
14.5
19 83
23.5 97.5 157
66
86
I
104
132
135.5
J
22 13 57
24 15 72
24 15 75
30 18 86
K
M
N
Pneumatic connections
G 1/8"
G 1/4”
G 1/4”
G 1/4”
a
25 12
30 14
36 17
44 21
b f7
c
Serration
1/16” x 90°
1/16” x 90°
1/16” x 90°
1/16” x 90°
d e
Bolt ISO 4762 12.9
M8 x 30
M10 x 35
M12 x 35
M16 x 40
Min.
4
6
8
12
f
T-nuts distance min. / max.
17/25
17/31
22/41.5
25/51
g h α
Serration length
40
50
59
75
Min. / max.
25.9 / 28.9
24.9 / 37
57.7 / 61.9
70 / 65
15
15
15
7.5
Radial jaw stroke
3
4.1
4.2
5
Operating pressure min. / max.
2 / 10
2 / 10
2 / 10
2 / 10
Piston area
129
206
290
532
Gripping force at 6 bar Air consumption at 6 bar Weight (without top jaws)
kN
20
35
60
95
l
1
2.4
5.5
6.6
kg
19
21
40
56
466 SMW-AUTOBLOK
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