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Atlas 2-Jaw High Speed Open Center Power Chucks

2ATL Series 6″ – 12″ Chucks

• 1.5mm x 60° master jaw
• Repeatability ± .0005″
• Large thru-hole
• Hardened jaw ways and all internal parts
• All steel body
• High RPM

Model Number
Through Hole (in)
Plunger Stroke (in)
Jaw Stroke (Dia. in)
Max Pull Force (lbf)
Max. Gripping Force (lbf)
Max. Speed (rpm)
Weight (lbs)
Moment of Inertia l (kg - m2)
Gripping O.D. Range (in)
2ATL6-A5
1.77
0.472
0.2165
4935
12790
6000
33
0.062
.59-5.0
2ATL8-A5
2.07
0.63
0.2913
7830
19970
5000
57
0.19
.79-7.0
2ATL8-A6
2.07
0.63
0.2913
7830
19970
5000
55
0.184
.79-7.0
2ATL10-A6
2.95
0.748
0.3464
9659
24902
4200
90
0.37
.98-8.25
2ATL10-A8
2.95
0.748
0.3464
9650
24902
4200
84
0.34
.98-8.25
2ATL12-A6
3.58
0.905
0.4173
12790
32978
3300
138
0.809
1.18-10.0
2ATL12-A8
3.58
0.905
0.4173
12790
32978
3300
131
0.77
1.18-10.0
2ATL12-A11
3.58
0.905
0.4173
12790
32978
3300
154
0.912
1.18-10.0
2ATL15-A8
4.62
0.905
0.4173
15930
40382
2500
276
2.255
1.96-13.0
2ATL15-A11
4.62
0.905
0.4173
15930
40382
2500
260
2.241
1.96-13.0
2ATL18-A11
4.62
0.905
0.4173
15930
40382
2000
364
3.744
1.96-16.0
2ATL18-A15
4.62
0.905
0.4173
15930
40382
2000
421
5.183
1.96-16
Technical Specifications
PRATATLAS 2J HIGHSPEED PWRCHK TECHSPEC DIM DWG.png
Dimensions in Inches
Model
A
B
C
D
E
F
G
H
J
K
L
M
N MAX
2ATL6-A5
6.65
3.58
5.51
0.787
0.59
3.25
4.566
4.125
0.629
3-M10
1.77
0.197
1.26
2ATL8-A5
8.27
4.29
6.69
0.984
0.905
3.25
5.25
4.125
0.512
3-M12
2.05
0.197
1.523
2ATL8-A6
8.27
4.05
6.69
0.984
0.669
4.187
5.905
5.25
0.708
3-M12
2.05
0.197
1.523
2ATL10-A6
10
4.721
8.66
1.181
0.987
4.187
6.75
5.25
0.708
3-M16
2.95
0.197
2.007
2ATL10-A8
10
4.45
8.66
1.181
0.708
5.507
7.48
6.75
0.945
3-M16
2.95
0.197
2.007
2ATL12-A6
11.96
5.08
8.66
1.181
0.987
4.187
6.75
5.25
0.708
3-M16
3.58
0.236
2.413
2ATL12-A8
11.96
4.8
8.66
1.181
0.708
5.5
7.48
6.75
0.984
3-M16
3.58
0.236
2.413
2ATL12-A11
11.96
6.06
8.66
1.181
1.968
7.75
6.75
9.252
1.102
3-M16
3.584
0.236
2.413
2ATL15-A8
15
6.3
11.81
1.692
1.299
5.5
9.252
6.78
0.945
3-M20
4.62
0.236
3.228
2ATL15-A11
15
5.86
11.81
1.692
0.866
7.75
10.236
9.252
1.102
3-M20
4.62
0.236
3.228
2ATL18-A11
17.72
5.86
11.81
1.692
0.866
7.75
10.236
9.252
1.102
3-M20
4.62
0.236
3.228
2ATL18-A15
17.72
7.24
11.81
1.692
2.244
11.25
9.252
13
0.945
3-M20
4.62
0.236
3.228
Chuck Size
G
H
J
K
Min
Max
S
W
6-A4
M10x25(6)
M10x25
5/16 UNFx1/2
2.99
0.94
1.57
0.475
1.22
6-A5
M10x130(4)
M10x25
5/16 UNFx1/2
2.99
1.1
1.73
0.475
1.22
6-A6
M12x30(6)
M10x25
5/16 UNFx1/2
2.99
1.5
2.13
0.475
1.22
8-A5
M10x30(6)
M12x35
3/8 UNFx3/4
3.94
0.98
1.61
0.551
1.57
8-A6
M12x130(4)
M12x35
3/8 UNFx3/4
3.94
1.19
1.81
0.551
1.57
8-A8
M16x30(6)
M12x35
3/8 UNFx3/4
3.94
2.02
2.65
0.551
1.57
10-A6
M12x35(6)
M12x35
1/2 UNFx3/4
4.53
1.02
1.75
0.63
1.57
10-A8
M16x150(4)
M12x35
1/2 UNFx3/4
4.53
1.44
2.15
0.63
1.57
12-A8
M16x40(6)
M14x45
1/2 UNFx3/4
5.71
1.3
2.03
0.71
1.81
12-A11
M16x160(4)
M14x45
1/2 UNFx3/4
5.71
1.3
2.03
0.71
1.81
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