My little Air hammer

[ZebDeming]

I've had alot of these parts around now for years. The air parts were for another project that never got done and having refound them a while ago, I decided I needed to build an air hammer. The valve used is a 5 way electric solenoid pilot with 1/2" ports. The air cylinder is a 2"x12" from the car wash that my boss owns, the front seal leaks a bit of air so he replaced it and gave me the old one. Anvil is only about 95 pounds of welded together pieces of round stock that I've collected over the years. The rest is made from other scraps of steel that I had laying around. It's cobbled together for sure, but I don't have alot of money to spend, and I wanted to see just how fast it would cycle before I got to spending any real money on a design that may not work.

I took a short vid today of it's first air up and hammering. There needs to be still some gussets and braces built and welded in, and my guide for the tup definatly isn't going to work, but in general I feel it will work for what I need it to do, in fact I may pony up and buy some proper steel for the anvil and build it quite a bit heavier, as it jumps around quite a bit and is a bit short.

 

Here is the video of it beating a piece of exaust pipe into submission.

 

 

In the video I just have a handheld button actuating the solenoid pilot, pretty much just a striking hammer, but I plan on setting up just a simple kinyon style control.... for the time being.

I'll try and get some more detailed pics of the thing put up by tomorrow.

 

Thanks for looking

Zeb

[Scott A. Roush]

Zeb.. that video is hilarious. But looks like you have a nice little tool once you tame that sucker. And I just spent $6000 on mine.

[ZebDeming]

Scott, I'd be happy to have the hammer you're getting! You can see the total lack of control this thing has, I should make another video of me trying to pound a cork in a glass bottle with this, I'll need to wear some saftey glases for that one

[Alan Longmire]

Y'know, with a heavier baseplate that little guy wouldn't be bad! It's fun watching it jump around, though.

[ZebDeming]

Thanks Alan, it looks like fun in the video, but I can assure you I was a bit scared when it started moving like that I picked up a couple hundred more pounds of steel today to add a bit to the weight and remake the tup and guide.

 

Zeb

[Jesus Hernandez]

That's so funny, Zeb but please weigh it down. It'll surely become quite useful.

[ZebDeming]

Thanks Jesus, definitely funny but not very useful trying to chase it around the shop.

 

I procured some heavy I-beam and a better Tup and guide yesterday. I took a cutting torch to the upright and guide I had made, as it was noticeably bent even after just that short amount of use. Here is a pic of it roughly laid out.

 

 

Some of it is welded up, but I need to figure out a linkage between the cylinder and tup. I'm not really fond of the air cylinder over the tup, mainly because it makes the hammer tall and I don't have a lot of overhead height.

The tup is a piece of 3" 4140 that weighs about 50 pounds, it's not a very efficient tup to anvil ratio, but I'm working with what is cheap or free

 

Zeb

[dennis mcadams]

Zeb, I'm glad that wasn't me doing the chasing. Fear not, some of the most creative designs are those which are limited by $$

Denis