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Note too, that HP available from the electric motor drops off with rpm, unless increased amp draw (heating) is tolerated.
Depending on the hammer mechanism, the better solution may be in gearing. Same motor rpm, fewer bpm.
How hard it hits is a factor of speed, 1/2 as fast is 1/4 the hitting power...works on the sqr of the speed....Phil
so does the hammer drop down (works by its weight) or is it forced down?
the motor is a monster, probably pretty slow, btw. i run several vfds, so i know how they work (sort of). i only saw the machine once, we dont go visiting now.
a friend of mine is blacksmith. he has a power hammer and complains that its too fast. i thought of making him a present and install a vfd. would that work or is there more to it? i have no idea about these machines and how they function.
o.k., i see, it doesnt need external air (or steam). the motor in question probably is 700 rpm (by he size of it).
as mentioned the machine is mechanical. now, i realize that kinetic energy is 1/2mv^2, but if there was a spring that projects the hammer down and the motor only lifted it up the speed should not really matter. does little giant work on that principle?
(i only found a few books on it and a drawing, but didn understand the latter.)
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