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Pneumatic Planishing Hammer
PeterG -
Tuesday, October 23, 2007 - 9:51pm
Does anyone have any experience with pneumatic planishing hammers? The one I am looking at will allegedly shape 16 guage (2mm ish?) mild steel. How good/easy are they to use? Is there anything I should look for or be wary about? The unit I am looking at is in China. Unfortunately there dosnt seem to be any for sale second hand in Australia tho there are a few in the US. I cant seem to copy the picture from the email I have, but it is basically a small air hammer mounted in a "C" shaped steel frame with a shaped anvil below it and a foot operated on/off switch. It does 1600 blows per minute and runs off 12cfm air. thanks Peter ![]() peterg, as the name as the
warren -
Wednesday, October 24, 2007 - 5:25pm
peterg, warren ![]() Shaping with a planishing hammer
visitor -
Wednesday, October 24, 2007 - 10:27pm
I have shaped with a pneumatic planishing hammer, using linear stretch dies. It works pretty well, if you don't want too radical a shape. I still have some pieces around that I did that way, reverse curves. They are unbelievably noisy, I would never own one unless my shop was a long way from anywhere, or in an industrial area. Use earplugs and headphones, both. If you have a pneumatic planishing hammer you don't really need an English wheel, it will smooth it out pretty well. Figure to make some of your own dies. Richard ![]() Thanks for the information
PeterG -
Thursday, October 25, 2007 - 4:26pm
Thanks for the information and advice. I really just need it for fairly rough work in steel,(most of my sculpture is rough) such as shallow dished shapes and texturing surfaces. It sounds as if it isn’t as versatile as I had hoped so I might try and find one locally to play with first. ![]() Peter,
Gene Olson -
Thursday, October 25, 2007 - 4:59pm
Peter, I would want a harder hitting hammer for steel especially 16 ga. It would work for 20 ga steel, just slower 18 ga too but again slower. For large surface areas to smooth and form, an English wheel is fast, controllable and quiet. It's my choice when I can get the part into the machine. and oh, btw. The thread on the meet can be found over on metalmeet at: If you can get there, do. Cause you will learn a lot about moving sheet steel. Gene Olson |
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That sounds like the same
That sounds like the same sort of unit that Harbor Freight Tools sells in the US for about $130. My brother has one and says it does the job okay. Tremendously noisy, of course, so you have to wear hearing protection.
It is fairly easy to build a rig like that if you have a welder. The power head is nothing more than a muffler gun air chisel clamped to the upper arm, with a domed head in it. The lower anvil needs to be adjustable for height and made to take different radius heads. The foot pedal can be had for forty bucks at most discount tool sources, or you can make your own from a ball valve and a bit of welding.
The ne plus ultra of planishing hammers is the Pullmax, which can be used for serious forming work, but costs in the tens of thousands of dollars. It all depends on what you're doing, I suppose.