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Hydraulic press frame specs?

J

Jason Fry

Knifemaker / Craftsman / Service Provider
Joined
Jun 5, 2008
Messages
3,164
I've been planning a press using the Batson book. I will end up with 25ish tons on a 5" cylinder with a 5 HP motor, exact specs pending what pump I end up with.

The charts in the book suggest that a 12" 26lb per foot beam will work with a 1" plate welded to the front. I was given a 13 FOOT long piece of 12x26. Would two 12x26 welded together to make a 24" deep beam be sufficient?
 
Chat GPT says that a pair of 12" beams welded together to make basically a 24" beam will be more than sufficient. Twisting load is still potentially problematic, but flexing of the beam itself will be fine. And a few gussets should be enough to stiffen up the twisting potential.
 
Jason, I was reading your first post, and didn't have enough info to make a comment. Is this for the main beam of a "C" style press? If a C style the distance of cylinder from the main beam will affect how much pressure/bend will result. If mounting the cylinder as close as reasonable to the main beam I'd suspect a single 12X26 I-beam would be just fine for a 25 ton press. If after building you decided there was too much flex in the main beam it would be easy to then weld the 2nd 12X26 I-Beam for extra support. 2550 psi will give the desired 25 tons, "assuming" no loss in system - 100% efficient.

Did Chat GPT mention if this was with a solid weld full length of I-Beam? OR, would sections be ok?

Ken
 
Yes, this was solid weld full length. Since I have the material, I figure I might as well try it. Yes, C style. I figure it'll be 2.5 or a tiny bit more off of the beam, to account for the 5" cylinder radius. Otherwise, planning as close as possible.

Closing in on getting the shop build started. Looking like a 18x24 enclosed with a 18x24 carport. Hope to start that later this month. Press is for after that.
 
You gonna have a NICE shop - will that be a 36 ft X 24 ft building with half enclosed and the other half carport style for forge, etc? That's going to be NICE.
 
Jason Fry said:
Chat GPT says that a pair of 12" beams welded together to make basically a 24"
Click to expand...
Do not trust ChatGPT for engineering questions. It's a text generator, and one programmed to produce text that agrees with the user at that.

I'm having trouble picturing what you're talking about, maybe draw up a basic schematic?
 
Ken H> said:
You gonna have a NICE shop - will that be a 36 ft X 24 ft building with half enclosed and the other half carport style for forge, etc? That's going to be NICE.
Click to expand...
18 wide by 48 long, 24x18 each half.

HH like that lol. Instead of IH like the plans specify with 1" plate.

If I add the cylinder, you end up with OHH or OIH. OHIO is too much trouble lol.
 
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