Specs are as follows:
Originally, I offset the anvil
to the right side so that I could work from 2 directions. Now I plan to add a
second station on the left side so that it is essentially 2 independent hammers
driven from the same flywheel via independent flat belts and independent
clutches. I'll add a partition between the two stations to keep flying hot stuff
to a minimum. My 11 year old son asked when we were going to build him one!
- Anvil weight: 850 pounds not including base.
With base and coupled mass, 2400 lbs.
- Hammer weight: 150 pounds
- Total weight: Somewhere around 3000 pounds. I
haven't weighed it yet.
- Speed: 270 beats per minute max.
- Drive: Dual v-flat from 7.5 hp motor to flywheel
and 6" flat belt to eccentric shaft via old military Hummer wheels. Idler pulley
clutch on flat belt
- Eccentric Stroke: Adjustable from 4 to 8
- Total stroke: From 6 to 15 inches
- Spring: Air spring using old hydraulic cylinder and
- Brake: I have a wheel on the eccentric shaft
to add a brake to, but so far, it looks like I may not need one.
- Dies: Shortened 140 pound rail. 7 inch long. Will
be quick change when I know what other dies I want to use.
- Throat: 10" vertical, 14" deep.
- Dimensions: 43 deep by 53 wide by 88
- Hammer position on rod is adjustable by set screw.
Stroke is adjustable by eccentric plug in eccentric wheel and by changing air pressure in cylinder to change stiffness.
Dies can be rotated in 60 degree increments now, but will be fully adjustable later.
Speed can be adjusted by changing motor belt sheaves.
Hammer guide is adjustable up and down on column if radical hammer position change is made.