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Press Brake Bending Tonnage Chart
GAUGE |
INCH |
1/4 |
5/16 |
3/8 |
1/2 |
5/8 |
3/4 |
7/8 |
1 |
1-1/8 |
1-1/4 |
1-1/2 |
2 |
2-1/2 |
3 |
3-1/2 |
4 |
5 |
6 |
7 |
8 |
10 |
12 |
20 |
0.036 |
2.9 |
2.2 |
1.7 |
1.2 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
18 |
0.048 |
|
4 |
2.9 |
2.2 |
1.6 |
1.3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
16 |
0.060 |
|
|
5.6 |
3.6 |
2.7 |
2.2 |
1.7 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14 |
0.075 |
|
|
|
6 |
4.5 |
3.4 |
3 |
2.5 |
2.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
13 |
0.090 |
|
|
|
|
6.8 |
5.4 |
4.3 |
3.7 |
3.3 |
2.9 |
|
|
|
|
|
|
|
|
|
|
|
|
12 |
0.105 |
|
|
|
|
10.1 |
7.4 |
6.3 |
5.4 |
4.4 |
4 |
3.2 |
|
|
|
|
|
|
|
|
|
|
|
11 |
0.120 |
|
|
|
|
|
10.5 |
8.8 |
7.2 |
6.2 |
5.4 |
4.3 |
3.2 |
|
|
|
|
|
|
|
|
|
|
10 |
0.135 |
|
|
|
|
|
|
11.3 |
9.6 |
8.4 |
7 |
5.6 |
4.1 |
|
|
|
|
|
|
|
|
|
|
9 |
0.150 |
|
|
|
|
|
|
|
13.1 |
11.9 |
9 |
6.7 |
5.2 |
3.5 |
|
|
|
|
|
|
|
|
|
7 |
0.188 |
|
|
|
|
|
|
|
|
16.4 |
14 |
11.2 |
7.6 |
5.8 |
4.5 |
|
|
|
|
|
|
|
|
1/4 |
0.250 |
|
|
|
|
|
|
|
|
|
28.8 |
22 |
15.3 |
11.5 |
9.1 |
7.5 |
6.2 |
|
|
|
|
|
|
5/16 |
0.312 |
|
|
|
|
|
|
|
|
|
|
38 |
26 |
19.2 |
16 |
12.5 |
10.6 |
7.6 |
|
|
|
|
|
3/8 |
0.375 |
|
|
|
|
|
|
|
|
|
|
|
41 |
29.9 |
24 |
19.4 |
16 |
12.3 |
9.3 |
|
|
|
|
7/16 |
0.437 |
|
|
|
|
|
|
|
|
|
|
|
|
45.2 |
35 |
28 |
24 |
17 |
14.6 |
11.1 |
|
|
|
1/2 |
0.500 |
|
|
|
|
|
|
|
|
|
|
|
|
|
47.9 |
39 |
33.1 |
24 |
19 |
15.6 |
12.7 |
|
|
5/8 |
0.625 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
69.5 |
58 |
42.2 |
32.4 |
26 |
23 |
16.5 |
|
3/4 |
0.750 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
92 |
69 |
52.2 |
42.2 |
36 |
27 |
21 |
7/8 |
0.875 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
104 |
80 |
63 |
52.5 |
39.4 |
31.2 |
1 |
1.000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
112 |
90 |
76 |
56.2 |
44 |
BOLD TYPE INDICATES RECOMMENDED V OPENING
DIE OPENING SHOULD BE 8 TIMES MATERIAL THICKNESS UP TO 5/8" THICK
DIE OPENING SHOULD BE 10 TIMES MATERIAL THICKNESS OVER 5/8" THICK
BENDING TONNAGE BASED ON MILD STEEL 60,000 TENSILE, A36 CAN BE HIGHER
STAINLESS STEEL REQUIRES 50% MORE TONNAGE
PUNCH NOSE RADIUS EQUAL TO MATERIAL THICKNESS