Hydraulic Press Question

S

SCMknives

Joined
Oct 21, 2008
Messages
124
Hey guys,

I recently acquired a press similar to this one: http://www.ebay.com/itm/ABEX-DENISO...710665?hash=item3f6eca9849:g:i-wAAOSwB09YIOEB

I picked it up for $150 to use for pushing out balljoints and random stuff in the garage. My question is, do you think it is feasible to convert into a forging press, if I swap the cylinder and pump? I'm thinking probably not, but just wanted to run it by you guys to see what ya'll thought. The frame of the C is 1" thick plate, and quite sturdy. Mine differs from this slightly. When I get home, I will add a few pic's of it.

Thanks, Steve
 
Hydraulic%20Press.jpg


Here is a pic of the one I have.
 
They're great little presses. I have an 8 ton at work.

I think you can modify it to be a forging press. From what ours looks like, you could simply swap the cylinder to a larger one for higher tonnage and use the same motor and pump. It's fast because of the little cylinder. Like 5" per second.

So what you need to figure out would be A) what is your pump rated for in GPM, max HP, max pressure, B) what is the motor HP, and C) how big of a cylinder can you retrofit in.

If I was doing this I would not just slap some dies on the table and affix one to the ram because it's going to be wobbly extended out all the way. I would build a guided spring loaded die set that sits on the press table and takes all of the radial force off the cylinder. Like a press within a press. You use the Multipress to power your smaller forging die. This is how forming is done in most presses. Most are a 4 pin arrangement but for something like a forging press you don't need that type of accuracy.

I don't know if I'm explaining this well enough to make sense so I'll draw a picture.
 
This is very crude but should get the idea across. Copper color is your dies with whatever retention/quick change setup you want. But you bolt this to your press table and hit it with the ram, boom, forging press. But you want to put ball joints or whatever in there and you just pull the whole thing out.

MOxhSU.png
 
That sounds like a great idea! Your explanation makes perfect sense. That will keep the press versatile for other uses. I have some die springs from my previous job that should work. Thanks for the idea! Really, I don't have anything to lose, as I have most of the stuff already. This particular press was originally used in a similar manner, with interchangeable dies for making semiconductors.
 
I think it's possible but you'll want to make sure you can cycle it fast enough. It's a good base to start with though and with some design forethought it's entirely feasible..
 
The good thing is I have a milling machine, lathe, and plenty of steel, so I think I can fab most of the stuff, and modify the machine all in house. All in all, I shouldn't have to spend much out to give it a shot. I appreciate the idea's guys!
 
What I see in the info is a 3/4HP pump and a small press (2 ton), the pressure is 2000 PSI. That will have many uses, but forging won't be one of them.
You need 3-4 HP and 16 GPM to do much forging.

Just switching to a bigger cylinder won't help. That is like putting a lawn mower engine in a truck and expecting it to work.
 
Yeah, I went out to the garage and took a closer look at it, and I think your right Stacy. I found a few more problems with attempting it. Even if I switched over all of the hydraulics to the proper stuff, the frame isn't designed for that kind of pressure. Guess I will stick with my original intent, making a small hydraulic press to use for balljoints, and broaches. I have Jim Batson's book on building a proper hydraulic press, so I think I'm going to go that route for a hydraulic press. Guess I'll keep the lawn mower engine on the lawn mower, and build the truck right lol! Thanks again for the feedback.

-Steve
 
That press will be good for small shop tasks and stamping blades. At the worst, you can fix it up and give it a paint job and sell it for a few bucks more than you paid.
 
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