[Shop-talk] air over hydraulic bottle jacks

[David Scheidt]

On Wed, Oct 29, 2008 at 5:29 PM, Mark Andy <mark at sccaprepared.com> wrote:
> Howdy,
>
> Anyone here used an air over hydraulic bottle jack like:
>
> http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=95553
>
> ?
>
> I'm thinking about getting one for use with my hydraulic press, to eliminate
> the "pump a bunch" deal.  When you use one, do you just press a button and
> the ram extends?  Can the speed be controlled?  Does it work some other way?

Haven't used one from HF, but I've used lots of air-over-hydraulic
jacks, and they're great.  They don't usually work fast enough to have
control problems, but on a press, you'll probably want to do the
actual hard part of the pressing with the hand pump.


-- 
David Scheidt
dmscheidt at gmail.com