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Home » Products » Power Chucks » Open Centre Chucks

Open Centre Chucks



Open Centre Chucks   Next >>
Product Description
Open 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. Standard hard jaws and soft jaws are provided for chucking the special components.

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. Each base jaw is provided with a lubricating nipple to ensure long and trouble free life.

Not only are these chucks compact, rigid and light in weight, but they also offer a powerful grip along with repeatability. They are ideal for high speed chucking, bar chucking, universal machining and especially suitable for CNC machines.

These chucks are activated by rear mounted hydraulic or pneumatic cylinders via the draw bar passing through the 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 be adjusted accordingly.

Special chucks with large bore (approx. 15% larger) can also be supplied for higher speed and gripping force.

Dimensions

Model
135 WH
165 WH
200 WH
250 WH
305 WH
380 WH
450 WH
530 WH
600 WH
750 WH
A
135
169
210
254
305
381
450
530
610
750
B
56
76
86
95
104
127
127
134
143
140
C (H6)
110
140
170
220
220
300
380
380
380
460
D
16
16
19
21
21
28
28
28
28
45
E (H7)
58
70.5
82
105
120
172
172
200
10
260
F
4
5
5
5
6
6
6
6
6
10
G
96
116
150
190
190
260
320
340
340
425
H
82.56
104.78
133.35
171.45
171.45
235
235
330.2
330.2
380
J (H7)
33
45
52
68
78
117.5
117.5
140
165
200
K
3 x M10
3 x M10 6 x M12
6 x M16
6 x M16
6 x M20
6 x M20
6 x M22
6 x M22
6 x M24
L
41
52.5
65.5
77
93
108.4
141
165
192
245
M
14
20
25
30
30
43
43
60
60
60
N (Max)
27
33
37.5
50
59
84
82
98
108
130
N (Min)
24.3
30.25
33.8
45.6
53.7
78.7
76.7
92.7
102.7
119.5
O (Max)
21
25
30.5
33
49
45.4
78
58.8
117
190
O (Min)
6
8.5
10.5
11
11.5
17
17
23.1
24.5
19
P (Max)
5
11
16
2
8
7
11
11
11
24
P (Min)
-5
-1
0
-17
-15
-16
-12
-12
-12
-16
Q
23
32
37
40
50
62
62
65
65
85
R (H6)
10
12
14
16
18
24
24
25
25
30
S
17.5
15
16.5
30
33
33
33
33
35
45
T
2
2.5
6
4.5
5
5
5
5
5
9
U (Max)
M40 x 1.5
M55 x 1.5
M60 x 2
M75 x 2
M88 x 2
M130 x 2
M30 x 2
M58 x 3
M75 x 3
M214 x 2
V
3 x M6
3 x M6 6 x M6
6 x M8
6 x M8
6 x M10
6 x M10
6 x M12
6 x M12
6 x M16
W
47
60
66
86
96
139
139
170
187
229
X
7
5
6.5
8
9
12.5
12.5
15
15
16
Y
12
20
30
45
50
60
60
80
100
100
Z
82
98
117.5
140
158
205
205
255
280
380
a
3 x M5
3 x M5
3 x M6
3 x M6
3 x M6
6 x M6
6 x M5
6 x M8
6  x M8
6 x M8
b
47
59
70
90
106
156
156
180
180
230
c
3
2.5
3
3
3
6
6
7
7
4
d
6 x M8
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 M24
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 1/6" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o

Specifications

Model

135 WH
165 WH
200 WH
250 WH
305 WH
380 WH
450 WH
530 WH
600 WH
750 WH
Open center dia. H7
mm
33
45
52
68
78
117.5
117.5
140
10.6
200
Jaw stroke dia.
mm
5.4
5.5
7.4
8.8
10.6
10.6
10.6
10.5
10.6
21
Plunger stroke
mm
10
12
16
19
23
23
23
23
23
40
Max. draw bar pull
kgf
1632
2000
3100
3800
4900
7100
7100
9000
9000
9000
Max. gripping force
kgf
3671
5500
8350
11000
14300
18000
18000
23400
23400
20000
Max. speed
rpm
7000
5000
5000
4200
3300
2500
2000
1700
1400
1000
Weight without jaw (approx.)
kg
6
14
24.1
34
60.4
102
146
227
290
480
Matching hydraulic cylinder

HOH
105
HOH
125/105
HOH
155/125
HOH
175/155
HOH
200/175
HOH
250/225
HOH
250/225
HOH
250/225
HOH
250
HOH
250
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 1/6" x 90o 3/32" x 90o 3/32" x 90o 3/32" x 90o

Product Code : 14

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