> I have a heavy piece of machinery that I want to get a weight for.   
> Plus or minus
> 5% would be okay.  This thingie is currently immovable.
> Any suggestions ?
> see http://oh-god.com/barko/
> 
> I have jacks capable of lifting the monster.
> 
>

Hmmm.... My educated guess would be about 20,000-25,000 pounds. But if you actualy need to weigh it, I see a couple options. My first choice would be to take it to a grainery or gravel pit, maybe a scrap yard or truck stop. All of which will have scales for weighing stuff this big. It might also be possible to get your local weighmaster (D.O.T. enforcement officer) involved, they have portable truck scales they can deploy to weigh a truck on the side of the highway. 

A few minutes with google shows the company to still be in bussiness http://www.barko.com/ But I don't see that model listed on thier web site - perhaps a well worded e-mail or phone call would dig up some specs?

I don't know what kind of jacks you have, but if they're hydraulic, could you add a gauge to show presure? It's just a little math to go from force to presure if you can measure the diameter of the cylinder.

There are other choices too, depending on how important this is to you, and how much you want to spend.


-Denny


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