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Posted By: Nnaatz Electric over hydraulic shop press - 02/28/2021 12:37 AM
I had built/rebuilt this press. I built the frame probably when I was 17 or 18. It used a 20 ton bottle jack which was complete pain in the ass but worked marginally satisfactory for 20 some odd years. I bought the 4 3/4 bore cylinder at a swap meet for little nothing. Motor came from something I scraped. I bought new pump for everyone's favorite place surplus center. I had a little bigger pump on it but it stall the motor out buy the time it build pressure. I dont remember the displacement off the new one...its small. Right pressure relief is set at 1500 pissys; and that's about all it will suffer for now till I get bigger table pins and add to the top. 14 ton at the moment. Want to hit 18 ton

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Posted By: Nnaatz Re: Electric over hydraulic shop press - 02/28/2021 12:38 AM
Current table pins are 3/4 4140...they hate life at 14 tons
Posted By: Nnaatz Re: Electric over hydraulic shop press - 02/28/2021 12:40 AM
And my classic lp cylinder dor hydraulic tank...there easy to come by and clean
Posted By: GatorS Re: Electric over hydraulic shop press - 02/28/2021 07:24 PM
I've got a Dake press I got at a auction. It is 25 ton manual. The pins on it are 3/4. The steel on that one looks everybit as strong as my factory built one. I would think you could increase the relief pressure some to get more out of it. I think mine is made from 6" channel. I got a smoking deal on it. Paid $200 for it about 10 years ago
Posted By: bunkclimber Re: Electric over hydraulic shop press - 02/28/2021 07:50 PM
Gator, unless you got the iron for free I don't think you could even come close to building it for $200..THAT IS a smoking deal.
Posted By: sonny Re: Electric over hydraulic shop press - 02/28/2021 09:52 PM
ya---GOTTA have bigger pins! ---- would the side holes be strong enough to stand more pressure? ---just askin!! lol!
Posted By: Nnaatz Re: Electric over hydraulic shop press - 03/01/2021 12:34 AM
I think the frame has plenty there. I drilled all the holes 1 1/16. My old half inch drill and I did not much like that. I order 1 inch 4140 from mcmaster carr. Like to give it the onions at 2000 pissys
Posted By: Nnaatz Re: Electric over hydraulic shop press - 03/01/2021 12:54 AM
Here it is a full stroke.. I wanted the rod to damn near come to the table that way it sorta eliminate janky set up with pushers and parallels. There is table top that is removable if necessary. Most pressing can be done threw the hole....and I was tired shit falling through and landing on my feet. The other is press brake my nephew made. Very handy. One of those things that you'd think you would never need till you got one. With the cylinder filled retracted has large working bubbles cutting down on table orientation. Will probably cut a 3x6 hole in side frame to allow a shaft. It is 3/8 webbed

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Posted By: sonny Re: Electric over hydraulic shop press - 03/01/2021 01:30 AM
Handy setup! -- my presses are a Continental 25 ton and an hf 12 ( i think) ton,---little one does decent, BUT throws stuff out and have to watch how you set work in there so it flys the other way IF it goes airborne! lol!
Posted By: Nnaatz Re: Electric over hydraulic shop press - 03/01/2021 10:27 PM
Hopefully I got this more squarer? Or more in square this time around to keep objects out of a low earth orbit
Posted By: Nnaatz Re: Electric over hydraulic shop press - 03/02/2021 10:22 PM
New piece of 4140... 1in for the pins

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