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Old 05-14-2019, 10:47 AM
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digger doug digger doug is offline
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Join Date: Jan 2008
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Originally Posted by Scratch View Post
It looks like they are able to bend 3" wide 5/8" thick steel and obviously wider if thinner. I already have a 20 ton press.
Google "press brake tonnage chart"

Rough rule of thumb:
1. standard bottom die opening is 8 x material thickness
So you know how short of a leg you can bend.
2. using the 8x standard, 1/4" plate will need a 2" wide opening,
and will take 20 tons per foot of bend.

So 1/8" plate will take 10 tons per foot.

adjusting the bottom die wider/skinnier will change things.
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