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Posted by Steve Smith on November 7, 2006, 9:30 pm
Please log in for more thread options Sounds like a fun toy. If you make pattern welded steel with it, *don't*
bend over to watch when you squish the billet. Flux sometimes comes out
in a blob, orange hot.
Steve
GSG wrote:
> Hi gang,
> Time for a gloat here. I just traded my monster Johnson gas
> furnace for a pristine, 25ton,4 post shearing press! 7hp, 18x24 platen.
> it's not the best configuration for forging but I'll make due or tear
> it down and build it back as a c-frame design. I am more interested
> in working sheet material anyway.
>
>
>
> John Husvar wrote:
>
>>
>>
>>> Pumps are not very expensive, they can be bought on industrial
>>> liquidations for not too much and will have a lot of horsepower and
>>> will likely be of exceptional quality. (of course you need to have 3
>>> phase, which I assume most of you do).
>>>
>>> You can buy hydraulic cylinders from a variety of sources, for example
>>> I am selling cylinders with 8" bore, and about 24" stroke right now, I
>>> have two. (shameless plug) They are from a military 50,000 lbs rough
>>> terrain forklift.
>>>
>>> Making a proper frame for a high power press is certainly a challenge
>>> as far as making it safe and sound is concerned.
>>> I would just look for a industrial A or H frame press at liquidations,
>>> again, they are not expensive and it is easier to buy something made
>>> than spend forever scrouging I beams and welding stuff and grinding
>>> off bad welds.
>>> Ergo
>>> http://www.winternitz.com/inventory/detail.asp?ID=20465
>>>
>>> 600 ton press in Chicago. (A little hard to believe this number, be
>>> careful)
>>>
>>>
>>
>> Same here. Could be a typo? That's not much cylinder _or_ frame for
>> 600 tons, going by a guess at the size of the compressor next to it.
>>
>> I could ask if my old employer is ready to sell the old press: 20'
>> above the ground, 20' in the ground, 40" ram, would reduce a 40" x
>> 72" round billet to 10" thick in about, oh, 10 seconds. Of course the
>> billet was at 2300 degrees at the time and the pressure was right at
>> 5000 psi but it was still one heck of a hydraulic forging press.
>> Oh, yeah, after the Big Squish, then they went and punched a hole in
>> the donut with an auxiliary ram mounted on the side of the main one.
>> Somehow I never got tired of watching that thing really: Squash, make
>> flat!
>> Not _the_ biggest press around, but adequate for the home workshop.
>>
>>
>
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