Hans Richter Posted October 5, 2017 Share Posted October 5, 2017 Pimped my power hammer anvil stand today from 60 lbs to 200 lbs. Wondering why the 55 lbs ram cause so little impact on the work piece during forging on the power hammer while the coffee cups are jangle and vibrating in the own kitchen closet ( and neighbours to), despite of filling the anvil with oil sand. Till now ( fortunately not to long) all the energy transfer right in to the smithy foundation instead of the work piece. Finally understood the urgency of a descend contra mass and ratio between ram and anvil. Filled the stand with stainless steel blast grit with a high density and the difference is significant. My air power hammer is an interpretation of the raw blueprint of the Larry Zoeller hammer you can find on the net and I’m very grateful for that. However, if you, like me, try to build your own AIR power hammer please keep in mind that: -you only take advantage of half of the stroke of the chosen air cylinder (in my case 6in instead of 12) -you have enough air, because, air seams the most valuable running resource (two single stroke compressors 65 gallons storage on 150 psi) -you have the possibility to get a decent ball valve foot switch to control the escaping air and ram ( still looking for this at European suppliers) Ones you overcome this obstacles you will be very proud of the result, and nobody can take away the result of blood sweat and tears (incl. money) it costs. Last but not least, I design my hammer as an portable tool to move/change place instead of a log static tool of compact steel of 700 lbs, by bolting parts together ………………… just in case of Know what I’m doing this weekend, try to finish an roman axe and dagger and ready for the first Damascus packaging. Cheers, Hans Quote Link to comment Share on other sites More sharing options...
the iron dwarf Posted October 5, 2017 Share Posted October 5, 2017 you used this with a hollow anvil? a solid piece of steel will be better than loose shot in that tube a much larger bore pipe will help as well as it will be restricting the airflow Quote Link to comment Share on other sites More sharing options...
jeremy k Posted October 5, 2017 Share Posted October 5, 2017 A filled tube is nowhere near going to have the results of a solid anvil. I would go with a minimum of a 5" round solid for an anvil on a power hammer(assuming this is a lighter air hammer version). Filling a tube for an anvil does nothing for the mass vs. rebound. Yes it my dampen some vibration but look towards replacing you hammer anvil with a solid piece of steel. Quote Link to comment Share on other sites More sharing options...
Hans Richter Posted October 10, 2017 Author Share Posted October 10, 2017 Gents, your right a solid piece is much better and I’m looking for this. Till than I have to make the best of it and create as much as possible rebound (reach bit more the ½ of the ball drop height yet) Quote Link to comment Share on other sites More sharing options...
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