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Old 11-24-2005, 04:34 PM
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Default Nice little press

The bigger press is the one I built for our shop at work It is from 10" H beam pile drops. Actuality there is two presses the big cylinder is a 6" dia with a 24" stroke. The long stroke is nice because you don't have to move the table very often if ever. The Little one is a 3" cylinder with a 18" stroke. Each has a adjustable table and pusher plates. The small engine man likes the little press as it is hard to "feel" when to stop with the bigger ram when working with smaller bearings and such. There is a 5 HP motor with a 2 stage pump with a selector valve to run one press or the other.The press is about 8'X8'4'. The table for the bigger press has a 1 1/4" thick removable plate with 1 1/4" pusher plates. There is 36" between the uprights.The motor is a 5HP 1725 RPM running a northern tool two stage pump with the least GPM you can get [you don't need speed] running @ 3000# pressure giving the 6" cylinder about 40 tons and the smaller one about 10 ton.If building another one The only thing I would change would to make the smaller press using a 4" cylinder instead of the 3" because of the speed. Even using a flow regulator the 3" is little fast but nothing you can't get used to.

I was going to wait until I got it cleaned up and painted but its been 5 years so I don't think its going to happen.The next press is the one I built for home with a lot "smaller" budget. It is made out what ever I could scrounge. It started out to be a bench model but got to high so I had to build a separate base which actually worked out well. This press has a 4" cylinder with a 14" stroke. This started out as arbor press but it is mostly used as press break. It is 24 1/2" between the uprights which are 4"X6" H beam. The top has the same H beam plus 1/2" flat bar. With the dies and blade I made I can bend 24" of 1/8" plate to a 90. 4"X1/2" flat bar is not a problem. I also have a back stop for doing multiple bends. It sure came in handy when I made 30 shelf brackets. I have a car lift that I run of this press using quick coupler Things MUST be kept centered on press! It also has a 5 HP 3450 RPM motor running the same pump as the bigger press. If I were to build another one I would use a 6" cylinder. With a 6" cylinder you could bend at least 24" of 3/8" plate to a 90. I would not use a motor faster than 1725 RPM and not use flat bar for the top. It flexes a little at full pressure. I would use the A frame design like the bigger press. The 4" inch cylinder gives you about 18 ton. I have drawings if anyone wants them. They are without dimensions because it all depends on the size ram you start out with
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Old 11-24-2005, 04:40 PM
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Default small press

small press
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Old 11-24-2005, 04:55 PM
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Default projects

press projects
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Last edited by digr; 12-19-2005 at 10:05 PM.
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Old 11-24-2005, 07:48 PM
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Default press

Digr,

Wow, sure made some nice fabrications such as the bins and bracketry. Nice job of making the presses as well.

Alan
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Old 11-24-2005, 09:15 PM
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Wow digr, this stuff just blows me away.
Great thread; thanks for taking the time to post it.
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Old 11-24-2005, 09:22 PM
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Default Nice stuff...

Gonna steal me some of those ideas, yup yup. RED
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Old 11-24-2005, 09:47 PM
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One word....IMPRESSIVE! I like everything about the both of them digr, nice work thanks for the pictures and info on the hydraulics.
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  #8  
Old 11-28-2005, 06:23 PM
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Nice press i could really go for something like that (smaller one i mean) or a mix's of the two

Will a 2Hp motor 1725 Rpm motor run a press like this and you would use a 4gpm pump ??def needs to be 2 stage pump ??
I have two 4 inch cylinders off a Backho back lift struts think they are 16" stroke - that should work hmmmmmmm

Whats 8" channel weight per foot ?
whats 4"x6" H beam weight per foot ?

ok guys find me a pump i have the rest

going to go to the scrap place tommorrow see what *cough* cheap steel he has

found this pump what do u think

3.2 GPM PUMP @ 1800 RPM .5 CU/IN
Image SAE A - 2 BOLT MT.; 3000 PSI
Image 5/8" KEYED SHAFT
Image #16 SAE INLET; #12 SAE OUTLET
$89.00
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  #9  
Old 11-28-2005, 10:23 PM
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Great work ifin I was gradin ya it be an A+ but I ain't no teacher so I'll just say EXCELENT work!
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  #10  
Old 12-18-2005, 08:16 PM
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Digr : on your small press that you use as a brake The top die how much of a bevel edge did u put on it / and does it come to a real sharp edge ? and what thickness is the top die material

and i found another 5Hp motor on the farm that i wouldn't mind swaping to a 2Hp only thing is this 5Hp is 3400rpm ?
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