![]() ![]() You can get a 7.5 HP single phase compressor that will do 22-23 CFM for around 2k new. Grant Sarver's thumbnail rule is 25 CFM per 100# of weight of the hammer for a Utility/Steam hammer. If I did get an air hammer I'd want something around a 100 pounder and most likely keep the 50 pound tire hammer as well. Also the tire hammer, once I fixed some of the weak welds and such is basically maintenance free other than lube. I only have single phase power in my shop, so I'm limited to single phase, 220. The one thing I really, really love about the tire hammer is that a 120V 1 horse motor runs it with no problem. While I like to play with decorative iron and such, they will mainly be used to draw out thick, fairly hard to move steel for knife making. After all, a day at the forge leaves me a month's worth of finish work. Big Blue and others? I know some has issues with overheating the self contained hammers, but I don't plan on running it hard all day, maybe 3-5 hours at a time at the most. ![]() What's the pro's and cons of self contained hammers vs. I'm really attracted to self contained hammers, but then like the looks of Big Blue as well. The hammer and press really compliment one another. I've got an H frame hydraulic press I built, and works wonderful for damascus. The main reason I got a hammer to begin with is that 52100 is stiff at lower forging temps, like your beating on cold iron almost and working larger stock down by hand would kill you. I've got a tire hammer that works very well for making large stock small enough to shape on the anvil. As a knife maker I really don't need one. As I move more into decorative iron work I am becoming more and more interested in an air hammer. ![]()
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