55t press

Ok, I might once again have missed something but for the sake of conversation can we consider how much the plates that Serg is going to use are likely to deflect under load. I have an image here which once again might be wrong. If so Serg you might want to jump in. Given the ram does not have a collar then it must push up against the top plate, to transfer the load to the bottom plate bolts must be in use. The bottom plate is 40-50mm thick and the flange on the PFC is about 90mm. How much deflection can we expect on the bottom plate? (as per the drawing what do we expect the value of Y to be?).

https://www.aulro.com/afvb/images/im...12/09/1092.jpg

thanks JohnK,

what I ment by "no mounting collar" was nothing extra under the 40/50mm bottom mounting plate.The bottom, outside dia of the ram is threaded for 50mm (5inch 12tpi) this threads directly into the bottom plate for the full 50mm. As the ram is approx 400mm long it will have to pass through the 25mm top plate (it will be board so it is only a touch bigger, say 1mm on dia, than the ram body.) The bottom and top plate will be bolted together as you have drawn, all be it on either side of the ram, as there is not enough room between ram and PFC.

ok so the red area is a thread, and the bolts are 90 degrees out, they should be rotated to be in line with the ram and the centre line shoul run parallel with the pfc

https://www.aulro.com/afvb/images/im...12/09/1072.jpg

Quote:

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Originally Posted by slug_burner

ok so the red area is a thread, and the bolts are 90 degrees out, they should be rotated to be in line with the ram and the centre line shoul run parallel with the pfc

https://www.aulro.com/afvb/images/im...12/09/1072.jpg

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If that red area is the thread, will there be enough threads in contact to ensure a trouble free working life?
.

50mm of thread engagement on 5 inch dia, 12tpi. Ram is SPX Power Team, threaded collar is rated to FULL working rating of RAM. Many store bought rams, including good ones like SPX and ENERPAC have the ram mounted only via the threaded collar.

I am not concerned in this area.

well having enough of folding peices of carboard for the moment, I decided to do some work on my press.

I started with the base/feet. SHS 100x100x9, end caps 100x25 flat bar, feet 50x10 flat bar, face mount 65x10.

I had to oxy all the flat bar and clean up. Vee ground and gapped the 25mm end caps with the SHS. 16mm holes slugged in the feet so a 14mm masonry drill bit will pass through.

GMAW Kemppi 250C, was in the spray transfer, approx 38v 13m/min for the end caps and 32v 10m/min for the 10mm plate.

Next is to Mill the feet flat, the ends square and parrallel and equal length. And Mill the face mount.

http://www.aulro.com/afvb/attachment...ess-015-rs.jpg

http://www.aulro.com/afvb/attachment...ess-018-rs.jpg

http://www.aulro.com/afvb/attachment...ess-019-rs.jpg

I love the look of shiny bare metal! Always looks very hardy and genuine. :cool:

That's just prep for welding. These will be milled, bead blasted and painted.....they will have started to rust by the time I get home today.

still sorting, sourcing and skeming.....I picked up 4 peices of 250 PFC @ 344 mm long (as per Dougals idea) I have some 150x90x16 angle coming, short bits to go into the PFC's. I need to weld some small 50x50x10 feet onto the feet of the bases...less area to be affected by uneven floor...

I cut all the FB uprights to the same length...need to do some lay out etc. Im a bit PO at how average the edges are to the face with regards to square and flat. I would like to mill the edges true, but I doubt I will be able to. I even thought about a carbided cutter for a die grinder in my router using its fence...but I dont have a 1/4 collet.

Quote:

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Originally Posted by uninformed

still sorting, sourcing and skeming.....I picked up 4 peices of 250 PFC @ 344 mm long (as per Dougals idea) I have some 150x90x16 angle coming, short bits to go into the PFC's. I need to weld some small 50x50x10 feet onto the feet of the bases...less area to be affected by uneven floor...

I cut all the FB uprights to the same length...need to do some lay out etc. Im a bit PO at how average the edges are to the face with regards to square and flat. I would like to mill the edges true, but I doubt I will be able to. I even thought about a carbided cutter for a die grinder in my router using its fence...but I dont have a 1/4 collet.

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Hello Uninformed,

How is the 55 ton press build going? Was it finished or did it meet a hurdle or two?

If the project was a success can you post up some photographs of the type of work you do with it?


Kind Regards
Lionel