bulldoze bender | Page 3 | Power Hammers and Presses | Forum

Bruce Macmillan;8228 wrote: Phil,
Grinding aside, they paid you to have that much fun!
I had a couple of pix leftover from the ''1500 steam hammer'' post, the hammer can be seen to the right of the green machine. The green mojo was intended to do closed die forging (bolt heads etc) and the grey I'd say repedative bending/forging, not me in the pic.
Pix taken at what's left of General Iron Works, Denver....
The wheel I threw to show the scale of some of the work that was done there........bm

Yeh I got paid not a lot ($82.00 per week, rent for 1 room in a house cost me $45.00 a week so I did'nt have a lot to live on)

So the bulldozer and the upsetter are still "installed" or so it looks, just the building is missing? Sad "Change and decay in all around I see".

There is some neat bulldozer tooling in these videos. The tooling for 180 degree bending is kind of neat how it bends in two stages so the end of the bend doesn't pop out.

There are also some good tooling pictures here http://www.loar.es/en/bendhor_machines/flywheel_control_30.asp#

Bruce have a look at the Euromac video. The one advantage of having your bending pins that are far apart mounted to the ram is that you can bend a circular piece or a 180 with a smaller diameter than the width of your cylinder.

The bulldozer bender I bought has been one of the most profitable tools I have bought for the shop. I have used it for a lot of cold bending, as well as hot bending, forging, upsetting, stamping, and hot shearing. I plan on using it for punching and maybe putting a rod shear into it. The cold bending jobs have usually been very profitable and the number stamping I regularly have to do on an ongoing job, now takes about half an hour each time as opposed to the hour and a half it used to take.

Having a limit switch to stop the ram in the same spot every time is really handy when you have to make a bunch of pieces the same. In my press it can be a pain at times for one off pieces because as soon as I take my foot off the pedal it returns so I can find it hard to sneak up on a stop point. But having a consistent stop can be really useful.

Looking forward to seeing what you come up with Bruce, i have been thinking about taking my press apart and making a bulldoze bender out of it. Its a 40 ton enerpac cylinder, right now its set up like a c-frame press, no good for bending unless i put wings on it. I wanna make something i can bolt down to my heavy table and have different pins and such, be able to bend longer pieces cold.