Anyone made one of these?

[Richard.]

I made this beast, not sure of tonnage but it eats 1/2" plate.

That’s awesome.

 

[Brad93]

Brad, Are you using a accumulator to achieve hydraulic flow speed.
When you designed it did you use yield strengths to work out structure as I’ve seen some mess ups when they have uts for working out csa of stress members

No calculations done to be honest mate we are not structural engineers, we have used 250 x 100 x 36kg PFC think it’s S355 for the uprights, 15mm S355 for the base plate, 25mm S235 for the top.

I think we should use something like S690 or Strenx.

If it breaks we will rebuild

No idea about the pump, a hydraulic pump company supplied it for the application.

Richard has seen it, it’s a lump.

 

[Richard.]

No calculations done to be honest mate we are not structural engineers, we have used 250 x 100 x 36kg PFC think it’s S355 for the uprights, 15mm S355 for the base plate, 25mm S235 for the top.

I think we should use something like S690 or Strenx.

If it breaks we will rebuild

No idea about the pump, a hydraulic pump company supplied it for the application.

Richard has seen it, it’s a lump.

It’s a lump n half. There won’t be much it won’t break once up and running.
I’m not a structural engineer but I’d of thought s460 stitched up with an S3 1Ni would be plenty strong enough

 

[pressbrake1]

With out seeing it your well within!
I can’t see it failing even with use as you need flex to get fatigue breakage which you see a lot with crusher buckets.
I don’t think a small 9kw pump will produce the shock loads to hurt it as it’s not just the force but the energy imparted to a structure

 

[Screwdriver]

No calculations done to be honest mate we are not structural engineers...

Looks like it has been built up from found material and they weren't skimping on the iron. Nice looking design, built like a tank. Then again, nothing too strong ever broke...

 

[Turbo]

Saw a manufactured bench top 10t hydraulic press sold at an auction last week & it made £110 + fees = £132! It's construction looked very weak, the 4 uprights were only 60x10mm flat steel & they had 20mm holes in them for height adjustment so effectively 40x10!

 

[Memmeddu]

I think that I will make one of this but hacking a car jack (50 tons) and using a little motor to pump the jack
I need to bend metal plates and do bearing stuff
I need one also to forging because I can't use the traditional anvil and hammer ,my shop is upstairs and wont disturb to much my neighbor(downstairs) (my engine driven welder ,my bench ,my sockets rack stand ,my first welder ,some other things are there,my chainsaw two angle grinders ....)

 

[Kent]

I think that I will make one of this but hacking a car jack (50 tons) and using a little motor to pump the jack
I need to bend metal plates and do bearing stuff
I need one also to forging because I can't use the traditional anvil and hammer ,my shop is upstairs and wont disturb to much my neighbor(downstairs) (my engine driven welder ,my bench ,my sockets rack stand ,my first welder ,some other things are there,my chainsaw two angle grinders ....)

I am currently building a 30tonne bottle jack press for a neighbour.

 

[knighty]

I think that I will make one of this but hacking a car jack (50 tons) and using a little motor to pump the jack
I need to bend metal plates and do bearing stuff
I need one also to forging because I can't use the traditional anvil and hammer ,my shop is upstairs and wont disturb to much my neighbor(downstairs) (my engine driven welder ,my bench ,my sockets rack stand ,my first welder ,some other things are there,my chainsaw two angle grinders ....)

come bottle jacks come with an air powered option as standard... they use quite a bit of air but work well.... saves you haven't to fit up a motor :-)

I've got a... I think 20ton jack like that... air option is nice because it takes bloody forever pumping it up by hand :-o

 

[sako243]

Bob, is there anything you haven’t made or got?

Unlikely - trouble is finding it.


Referring to my other thread thanking him when we were clearing out a bit of space undercover for my engine swap there was two rusty pins of steel tacked onto a small plate lying amongst some leaves, empty cardboard boxes and dog food. Turns out a it was a locking tool for some engine or other. He was very welcoming to me and had plenty of tools I could use if I hadn't got it with mine, but to be honest if he's struggling to find it and it's his workshop(s) what hope do I have?!

To put the difficulty into perspective we both spent 15 minutes looking for an entire Land Rover engine!

 

[Brad93]

This is the pump tape for scale. Actually 11kw.

 

[8ob]

Unlikely - trouble is finding it.

To put the difficulty into perspective we both spent 15 minutes looking for an entire Land Rover engine!

I knew it was in the northeast corner though, somewhere

Bob