Quick question: How much effort does it take for one pump on a bottle jack?

[Jeff7]

Link

For anyone who's used something like this:
Assume that jack is lifting about 60,000lbs. Approximately how many pounds per pump would a person need to exert on the lever arm?

 

[BoomerD]

Depends on too many variables to give a simple answer.
Length of the lever (handle) ratio of the length/pump piston, etc.
As a rule, it doesn't really take too much strength to use one of these to lift the rated capacity however.

 

[Jeff7]

Well, as in less than 50lbs or less than 25lbs? Or is that still too wide a range?
This is for a design project that will incorporate a bottle jack, and I just need to know at least [/i]some[/i] idea of the force the operator will need to create.

There aren't many more specs there, but this is the manufacturer's page.

 

[BoomerD]

http://www.torinjacks.com/EmailUs.aspx

 

[nakedfrog]

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