Hillbillysmith Posted October 6, 2012 Share Posted October 6, 2012 I am currently in the middle of building a tooling press, which i will be posting in the projects area, and am in need of an "air over hydraulic" cylinder for it. 20 ton. I found harbor freight has this same thing in the form of a bottle jack but i would like something with a longer stroke,something in a 12-16 inch range for the stroke. Any help?? Thanks all -Hillbilly Link to comment Share on other sites More sharing options...
swedefiddle Posted October 6, 2012 Share Posted October 6, 2012 Good Morning, One of our members in Nanaimo used an Air-brake pot from a truck to operate a lever and a clamp. Simple. Air causes tooling to sometimes not move evenly and then all of a sudden move, POOR FINGERS!!!! Coates tire machines are air over oil. If someone forgets to add the oil it becomes a widow-maker!! Neil Link to comment Share on other sites More sharing options...
HWHII Posted October 6, 2012 Share Posted October 6, 2012 I use a air over hydraulic foot pump to power my hydraulic cylinders they are all high pressure though. Its made by OTC. Link to comment Share on other sites More sharing options...
Scott Davidson Posted October 30, 2012 Share Posted October 30, 2012 I am building a press also that uses the same air over hydraulic jack, a 20 ton. I found one on the ebay for 95.00. I ordered it and got it in a week.I am gathering together my steel ,, and will post a pic when its done. Scott Link to comment Share on other sites More sharing options...
MOblacksmith0530 Posted October 30, 2012 Share Posted October 30, 2012 looking forward to seing it. Link to comment Share on other sites More sharing options...
macbruce Posted October 30, 2012 Share Posted October 30, 2012 What are you trying accomplish with your press(es)? If it's forging seems to me AO and bottle jacks ain't gonna cut it...... Link to comment Share on other sites More sharing options...
Scott Davidson Posted October 30, 2012 Share Posted October 30, 2012 A friend of mine in columbus , Ga has already build one. It does work well. 20 tons will move hot metal very easily. This is not a press made for production work , but for the " homeowner" it works well. For mashing chain , cable, and the likes , it makes some beautiful "damascus".For the lack of a better word , i will use damascus. You can take a piece of motorcycly chain , or a timing chain , fold it and start mashing it . He ended up with a beautiful piece about 3/16 x 1 1/4 x 7 inches long. There did not appear to be any pits, or holes that you could see. The way he did is was to flip on the lock that holds down the handle. Then all you have to do is open and close the valve at the bottom of the jack that lets the ram return back to the down position.Rapidly open and closing the bleeder valve will operate the ram fairly quick. His jack had the springs that would pull down the ram. I will post up some pics. Scott Sorry , this is the best pic i have now. I will post some better ones later. Scott Link to comment Share on other sites More sharing options...
pkrankow Posted October 31, 2012 Share Posted October 31, 2012 Sorry , this is the best pic i have now. I will post some better ones later. Scott I like that you thought about how to best move it around with the big handles and lifting eye. Phil Link to comment Share on other sites More sharing options...
Scott Davidson Posted October 31, 2012 Share Posted October 31, 2012 Thank you Phil . I am starting to feel a little older, and its funny how those things start to factor in when making something. Scott Link to comment Share on other sites More sharing options...
kpotter Posted November 4, 2012 Share Posted November 4, 2012 I have made a mini forging press with a HF air jack. I have a video on you tube mini forging press it should come up. they work fine on smaller material like under 1 inch. Link to comment Share on other sites More sharing options...
Hillbillysmith Posted November 4, 2012 Author Share Posted November 4, 2012 With mine I'm not looking to accomplish any forging with, hence the term "TOOLING press". Mine is going to be meant for seating bearings, custom holding clamps if i need, punching indentations, etc. when i go for the heat n beat method, i like my 8lb flat-faced one hand sledge. Moves metal quite fast n easily when you strike. -Hillbilly Link to comment Share on other sites More sharing options...
Wes C. Posted January 27, 2013 Share Posted January 27, 2013 Take a look at my photos in the swordsmithing forum "smallswords" topic. Link to comment Share on other sites More sharing options...
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