Check my hydraulic press specs

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Jason Fry

Knifemaker / Craftsman / Service Provider
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Jun 5, 2008
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I have a Baldor 1750 RPM 5 HP motor.

If I go with a 16/3 GPM pump, at half speed, that'll give me 8/1.5 GPM flow rate.

If I go with a 5x12x2 cylinder rated for 3000 PSI, that gives me about 25 tons at 2500 PSI. I think I figured 29.5 at 3000.

With that pump and cylinder, I'll get about 1.57/.29 IPS ram speed.

OR

22/6.5 pump half speed at 11/3.25 GPM
Same cylinder.
Generates 2.16/.65 IPS.

They'll all work, best I can tell. Any reason to prefer one over the other?
 
For sure the larger pump - you'll appreciate the fast ram speed. The 1.57 IPS will work just fine, that's close to my press with the 4" ram and about 6 GPM pump at a 1.8 IPS calculated ram speed, but I'd still go with the larger pump
 
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