(04-02-2017, 11:09 AM)Vinny Wrote: I found a pneumatic on ebay for a decent price, but after doing the math on it's force capabilities, it's useless. For the punches I have I need just under a ton, it was just over an eighth of a ton! So I'm back to looking. As it stands right now I may be making something to use in my shop press, my arbor press is only a half ton.
Yeap, pneumatic driven = speed. Hydraulic = force as does mechanical. In fluid power gasses can be compressed in contrast to liquids which are very close to being non-conpressable. In reality the only aspect of liquid compression that "compresses" is forcing any gas out of suspension.
BTW, anyone in your neck of the woods have a wire EDM? I suspect it would do the work for you quickly & relatively inexpensively.
You may also want to visit anvilfire.com a blacksmith's forum where you can view user built hammers and plans are available from Jerry Allen &The Appalachian Blacksmiths Association for the "Rusty" power hammer. Planed to make one myself, but after two carpel tunnel surgeries and eight trigger finger repairs I decided to go a different way.