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Jim Wilkins Jim Wilkins is offline
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Default How much force in a vise?

On Jul 19, 7:56*am, Gunner Asch wrote:
...
Anybody needs one..Ive got a similar scale that goes up to 500 kilos.
Snagged it when I was closing out a factory. Used it a few times with
the forklift to wiegh machinery, but would rather have one in pounds
rather than metric measurements

Gunner


In practice I've needed to pull about 3000 lbs max on jobs around the
house, like extracting small stumps or winching down a tree that hung
up on others when it fell. I had no real idea how much force a manual
cable or chain hoist could apply, and if it was overloading the chains
and ropes, until I measured it once for each device.

I don't think it matters that the instruments are long out of
calibration. A 3/8" grade 70 transport chain rated for 6600 Lbs was
proofed at 13200 and supposedly breaks at 26000. I doubt I'll ever
damage it. The risk is with smaller gear that is light enough to carry
all in one trip.
http://www.harborfreight.com/1-4-qua...ist-67144.html

jsw