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Home » Products » Power Chucks » Closed Centre Chucks

Closed Centre Chucks



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Product Description
Closed Centre Chucks

Manufactured from high-grade alloy steel, all the sliding surfaces of this chuck are hardened and ground for accurate running and long service. Lubrication facility provided on each base jaw, ensures better gripping force output.

The Wedge design of the chuck has a self-locking feature, that prevents accidents and it does not loose its gripping power even at cutting loads.

These compact and sturdy chucks offer powerful grip together with high repeatability. Their stable gripping power even at higher speeds make them ideal for CNC applications.

The chuck is actuated a rear mounted hydraulic or pneumatic cylinder via a draw bar passing through the machine spindle bore. Since it is important that the cylinder should provide the correct operating force to match the chuck, the supply of line pressure to the cylinder should adjusted accordingly.

These chucks are offered both in two-jaw and three-jaw versions. Standard hard and soft jaws can be replaced with special hard and soft jaws for chucking different components.

Dimensions

Model
125 WC
160 WC
200 WC
250 WC
315 WC
400 WC
530 WC
630 WC
800 WC
900 WC
1000 WC
A
125
169
210
254
304
400
530
635
800
900
1000
B
47
76
77
89
101
112
117.5
119
152
165
172
C (H6)
105
140
170
220
220
300
380
380
460
520
520
D
14
16
19
21
21
28
28
28
35
45
45
E (H7)
70
70
90
100
140
175
186
210.5
220
290
360
F
5
5
5
5
6
6
7.5
8
8
10
10
G
90
116
150
190
190
260
340
340
425
485
485
H
82.6
104.78
133.35
171.45
171.45
235
330.2
300.2
380
463.6
463.6
J
-
23.5
25
34
-
-
-
-
-
-
-
K
3 x M10
3 x M10 6 x M12
6 x M16
6 x M16
6 x M20
6 x M22
6 x M22
6 x M24
6 x M24
6 x M24
L
32.5
48
61
75
96
127.5
177
219
305
320
351
M
12
20
25
30
30
43
60
60
60
60
60
N (Max)
29.8
36.5
46
46
54
70
85
97
95
130
149
N (Min)
25.8
32
41.4
40.2
48.2
62
77
89
84.5
119.5
135.6
O (Max) 14.5
20.5
25
31
52
64.5
93.5
112.5
203
215
257
O (Min)
5
8.5
10.5
11
11.5
17
23.1
23.1
18
20
20
P
-
40
40
36
45
62
54
65
85
85
85
Q
25
32
37
40
50
65
65
65
70
85
85
R (H6)
10
12
14
16
18
24
25
25
25.5
30
30
S (Max)
39
45
44
55
60
43
68
68
70
70
90
S (Min)
20
25
24
30
35
8
33
33
30
30
40
T
-
M16
M20
M20 M24 M24 M30 M30 M30 M30 M36
U
7
4
4
5
5
10
3
3
9
9
9
V
-
32
40
50
55
52
60
60
60
65
70
W
3 x M6
3 x M6 6 x M6 6 x M8 6 x M8 6 x M10 3 x M12 6 x M12 6 x M16 6 x M16 6 x M16
X
-
25
23
30
32
32
35
35
30
30
40
Y
M24 x 1.5P
40
52
60
60
63
78
85
80
90
100
z
54
78
90
100
105
135
156
175
180
250
250
a
3 x M4
3 x M5 3 x M6 3 x M6 3 x M8 3 x M8 3 x M6 3 x M6 3 x M8 3 x M8 3 x M8
b
60
56
75
80
124
155
171.4
190
200
270
340
c
2.5
2.5
3
3
3
6.5
6
6
4
4
4
d
6 x M6
6 x M10
6 x M12 6 x M12 6 x M14 6 x M20 6 x M20 6 x M20 6 x M20 6 x M20 6 x M20
e
1/6" x 90o 1/6" x 90o 1/6" x 90o 1/6" x 90o 1/6" x 90o 1/6" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o

Specifications

Model

125 WC
160 WC
200 WC
250 WC
315 WC
400 WC
530 WC
630 WC
800 WC
900 WC
1000 WC
Jaw stroke dia.
mm
8
9
9.2
11.5
11.6
16
16
16
21
21
26.8
Plunger stroke
mm
19
20
20
25
25
35
35
35
40
40
50
Max. draw bar pull
kgf
9000
1800
2500
3100
4000
4000
9000
9000
10000
10000
13500
Max. gripping force
kgf
1500
5000
6800
9500
12500
15000
19000
19000
32000
32000
37500
Max. speed
rpm
3000
3800
3100
2800
2300
2000
1500
1000
800
750
630
Weight without jaw (approx.)
kg
5
13.0
20.5
30.0
50.0
105
163
315
560
750
950
Matching hydraulic cylinder

80HC
105HC 120HC 120HC 160HC 160HC 200HC 200HC 250HC 250HC 250HC
Matching air cylinder

130AC
200AC 250AC 270AC 305AC 250ACT 300ACT 300ACT -
-
-
Base jaw serration

1/6" x 90o
1/6" x 90o 1/6" x 90o 1/6" x 90o 1/6" x 90o 1/6" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o

Product Code : 15

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