Vertical Lathe Chuck
Vertical Lathe Chuck

This Three-jaw chuck used waterproof and dustproof design, especially suitable for vertical lathes.

Vertical Lathe Chuck is a specialized clamping device used in vertical lathes, which are machine tools designed for machining large, heavy, or complex parts that are difficult to handle on conventional horizontal lathes. The chuck holds and secures the workpiece in place while it is rotated around a vertical axis, allowing for precise turning, facing, and boring operations.
Three-Jaw Waterproof & Dustproof Power Vertical Lathe Chuck size

Dimensional Parameters

Model
spec.
A
B
C
(H6)
D
D1
D2
E
E1
G
H
J
L1
L2
MAX
MIN
3SL-12
A8
304
106
220
171.4
139.719
190
6
33
145
115
36
50
25
55
3SL-15
A8
381
116
300
235
139.719
171.4
33
71
36
50
60
24
63
A11
196.869
260
33
71
36
32
3SL-18
A8
450
139.719
171.4
33
59
24
55
24
A11
196.869
260
33
59
24
32
A15
285.775
330.2
40
52
17
26
3SL-21
A11
530
127
380
330.2
196.869
235
85
50
34
75
A15
285.775
330.2
85
50
3SL-24
A11
610
196.869
235
44
93
58
A15
285.775
330.2
3SL-32
A15
800
33
75
3SL-40
A20
1005
184
520
463.6
412.775
463.6
8
50
78
43
65
35
102
3SL-50
A20
1250
34
-26
33

Model
spec.
M1
M2
M3
N
P
Q
R
S
T
X
Y
MAX
MIN
MAX
MIN
3SL-12
A8
M20
6-M16
3-M8
130
30
61
54.6
47.5
16
62
25.5
2
1.5
3SL-15
A8
M30
6-M20
6-M16
165
43
77.5
69.5
50.25
23.25
A11
3-M10
3SL-18
A8
6-M16
108
100
49.5
25.5
A11
3-M10
A15
6-M24
3SL-21
A11
6-M24
6-M20
330.2
60
86
78
93.5
27.5
25
25
3
3.0
A15
3-M12
3SL-24
A11
6-M20
125
117
A15
3-M12
3SL-32
A15
119.5
111.5
197.8
41.8
75
3SL-40
A20
M36
200
100
149.5
132.5
215
48
85
30
-4
-
3SL-50
A20
337.5

Performance Parameters

Model
spec.
Piunger
stroke(mm)
Jaw stroke
(Dia.)mm
Max Pull force
KN(kgf)
Max. Gripping
force KN(kgf)
Max Speed
r/min
Gripping range(mm)
Moment of
Inertia Kg.m²
Weight
(Kg)
Matching cylinder
Max.pressure
MPa (kgf/cm²)
3SL-12
A8
30
10.5
40(4080)
152(15500)
3200
18-304
0.8
63.5
69.6
SY-150
2.6(26)
3SL-15
A8
35
16
81(8260)
248(25290)
2800
68-381
2.3
100
112
SY-200
3.2(32)
A11
125
3SL-18
A8
2500
85-450
3.3
144
157.7
A11
156.1
A15
3.7
3SL-21
A11
32
83(8470)
270(27550)
1940
110-530
5.3
220
250
A15
5.2
244.5
3SL-24
A11
1700
155-610
7.6
294
323
A15
7.3
3SL-32
A15
85(8650)
265(27000)
900
265-800
36.2
390
420
SY-250
4.0(40)
3SL-40
A20
60
180(18350)
300(30590)
550
265-1005
72
713
750
3SL-50
A20
500
265-1250
148
940
1009

Key Features of Vertical Lathe Chuck:

  • High Clamping Force: Designed to hold heavy and large-diameter workpieces securely.
  • Stability and Rigidity: Enhanced stability, especially when dealing with off-center or asymmetrical loads.
  • Durability: Made from high-grade, heat-treated steel or cast iron for long-lasting performance, even under high stress.
  • Precision: High concentricity and minimal runout to ensure accurate machining results.


The most common types include:

a. Manual Vertical Lathe Chucks

  • Operated manually using a wrench or handle.
  • Suitable for small to medium-sized workpieces.
  • Generally simpler in design, requiring less maintenance.
  • Lower cost compared to powered chucks but less efficient for high-volume production.

b. Power Vertical Lathe Chucks

  • Operated using hydraulic, pneumatic, or electric actuators.
  • Capable of providing much higher clamping forces.
  • Ideal for high-volume, automated production lines.
  • Features quick-change jaws, which reduce downtime and enhance productivity.

c. 3-Jaw and 4-Jaw Vertical Lathe Chucks

  • 3-Jaw Chucks: Self-centering, best for cylindrical and symmetrical parts.
  • 4-Jaw Chucks: Independent jaws, suitable for irregularly shaped workpieces and precision work requiring adjustable centering.


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