Another "I want to build a press" thread....

Bühlmann

Bühlmann

Well-Known Member
Short & sweet:

- H-style press
- 2.5 x 2.5 x 0.375" angle iron frame
- 1 x 4" cross members, ram & anvil reinforced to be 3" at die interface for additional surface area and 3" square die blanks for 90 degree utility
- 4" cylinder w/8" stroke
- 3 5 HP 1ph motor, 3600 RPM, 220V
- 11 16 gpm pump
- 18gpm open center, 1-spool, 4-way, auto-detent Prince valve
- 5 7 gal reservoir

This configuration should net me the following:

16 tons of force @ approx. 2550PSI, 3.37 3.8 IPS in high, 0.64 1.26 IPS in low


Is my head right on this? What am I missing? Thank you for any input and wisdom!

*Updated numbers to reflect accepted advice to up motor to 5hp
 
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With your 3600 rpm motor I think you're in good shape. The control valve I don't know but it sounds good. By "auto detent" that means it returns to center position?
 
KenH said:
Since links are not allowed on the "other" forum, here's a couple Amazon links to 3600 rpm motors
https://www.amazon.com/dp/B081J29Y6L/?th=1 - 3 hp for $173
https://www.amazon.com/dp/B07VVJVG3G/ - 5 hp for $200

That 5hp is tempting for my press
Click to expand...

Thanks, Ken. This is the one I found:


I like that C-face so I can hard mount the pump to the motor with a Hydra-Mount. I think this is the smarter way, plus I think I can up my pump to a 16gpm and increase the ram speed without compromising torque with a 5hp.
 
Check out Gliden07's thread on his press build.

IIRC, his press frame is from similar angle iron stock.

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52 Ford really did some good modeling on on that thread. I'll say "Thank You" again to him. The modeling work allowed me to better understand the stresses involved.
 
I thought it was a pretty fun project. I was still trying to get used to Fusion 360 and that helped a lot.

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