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Old 08-08-2017, 08:50 AM
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Default Small Hydraulic Press

I've been thinking about/wanting a small press for a long while. I dont have the space for a conventional press so have been thinking of making a C frame one.

I only want something for light work, bearings, bushings etc, maybe bending a few brackets, going to use a 10t portapower for hydraulics.

Harbor freight used sell one which I've copied this diagram from the manual.

I'm wondering on material choice. If I go with 4 inch channel for the lower legs, and then boxed two pieces for the uprights I'm thinking I should have something reasonably solid?

Has anyone used a C frame press? am I wasting my time?

Also thinking there might be occasions where it's size could mean bringing the mountain to mohammed
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Old 08-08-2017, 09:32 AM
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I see no problem at all it should make a nice little press.
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Old 08-08-2017, 11:21 AM
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Good design. Thinking the frame will not take 10 ton but expect you won't need that much force for what work you described.
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Old 08-08-2017, 12:03 PM
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I think if you are going to do 10 t that a 1/2 diamond brace on back would get you there .If possible solid bar on vertical.
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Old 08-08-2017, 02:32 PM
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Well the capacity is shot to hell anyway.

It's only a 4t Porta power

Should be enough for that type of work anyway?

Given the lack of capacity I've downgraded the frame too, it's now coming from the resource pile as opposed to being bought

Main vertical 80x80x5 box, 100x15 flat for the legs
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Old 08-08-2017, 03:28 PM
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Quote:
Originally Posted by JohnBoy View Post
Main vertical 80x80x5 box, 100x15 flat for the legs
I was WTF, then realized that is in mm.....
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Old 08-08-2017, 03:34 PM
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The only problem that I can see with the design is that it will have to be attached to a stand of some kind to enable working with longer shafts and what not. And as far as the table goes 80 wide isn't much width to work with.
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Old 08-08-2017, 03:53 PM
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For bearings, bushings, punching, all good stuff for a C frame. When it comes time to straighten a bent pto driveshaft, then the table of a H frame becomes precious. But if room is an issue and you are using a portapower, does it need to be a floor mount or can a bench model do it? A bench type H frame can be fairly light material because most of it is under tension and steel has great tensile strength.
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Old 08-08-2017, 03:54 PM
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Here is one with a stand
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Old 08-08-2017, 04:35 PM
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Dayam, Ifin I needed one, I'd just use the print about 3 pages into Digr's link (PDF) That is a very clean and sweet design. (And I just finished re sealing my Blackhawk 4 ton porta power...)

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