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PRATT BURNERD/ATLAS 4-JAW INDEPENDENT HEAVY DUTY CHUCKS

32″ to 79″ Steel Body Chucks

  • One-year warranty

  • Heavy duty steel body

  • Two-piece reversible jaws

  • Long master jaws

  • One step top jaws

  • Hardened and ground jaws, operating screws and thrust bearings

  • Chuck Sizes 32″, 36″, 40″, 48″, 56″, 60″, 63″, 71″ and 79″

  • Direct mount

  • Thru-hole can be altered to suit customers

  • Special larger sizes available upon request

Cast Steel Chuck Size
Recess Mount Part Number
Type A Spindle Cast Steel
Part Number
32"
3224500
A-8
3224512
32"
A-11
3224513
32"
A-15
3224514
36"
3624500
A-11
3624513
36"
A-15
3624514
40"
4024500
A-11
4024513
40"
A-15
4024514
40"
A-20
4024515
48"
4824500
A-11
4824513
48"
A-15
4824514
48"
A-20
4824515
55"
5524500
A-11
5524513
55"
A-15
5524514
55"
A-20
5524515
60"
6024500
A-15
6024514
60"
A-20
6024515
63"
6324500
A-15
6324514
63"
A-20
6324515
71"
7124500
A-15
7124514
71"
A-20
7124515
71"
A-28
7124516
79"
7924500
A-15
7924514
79"
A-20
7924515
79"
A-28
7924516
Chuck Size
A
B
E
F
J
L
K
Optional
32"
31.50"
5.31"
5.31"
2.87"
5"
2.36"
7.99"
11.18"
36"
35.43"
5.31"
5.51"
2.87"
5"
2.36"
7.99"
12.68"
40"
39.37"
5.51"
5.91"
3.07"
5"
2.95"
7.99"
12.68"
48"
47.24"
6.30"
6.30"
3.07"
5"
2.95"
7.99"
15.75"
55"
55.12"
6.69"
6.30"
3.07"
5"
2.95"
7.99"
17.72"
60"
59.06"
7.28"
6.30"
3.07"
5"
2.95"
7.99"
19.69"
63"
62.99"
7.68"
6.69"
3.62"
5"
3.54"
21.65"
21.65"
71"
70.87"
8.07"
7.09"
3.62"
5"
3.54"
23.62"
23.62"
79"
78.74"
8.46"
7.09"
3.62"
5"
3.54"
25.59"
25.59"
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