Specs are as follows:
- 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
inches
- Total stroke: From 6 to 15 inches
- Spring: Air spring using old hydraulic cylinder and
trapping air.
- 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
tall.
- Adjustments:
- 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.
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!
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