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Electric or Hydraulic torque wrench

thread725-38924

Electric or Hydraulic torque wrench

Electric or Hydraulic torque wrench

(OP)
I have an application that I need to torque bolts to the 500 lb-ft range.  I have been looking at hydraulic and some electric torque wrench websites.  I am looking for some info/opinions on the two types from a user.  I think that hydraulic will be too expensive for my limited use (once a month 30 bolts).  Which brands are better?
Thank you
Brian

RE: Electric or Hydraulic torque wrench

Hytorc's work great http://www.hytorc.com/
Valve makers use little ones & turbine makers use big ones - be sure to use never-seez!

RE: Electric or Hydraulic torque wrench

I don't have experience with hydraulic tools .  According to their website, Hytorc tools are used to preload fasteners with zero torque.  They are much slower - minutes per fastener.

Electric tools use torque to preload fasteners.  They are much faster - seconds per fastener.  Good suppliers for these are AtlasCopco and Stanley.  You can learn more at the following sites:

http://www.atlascopco.com

http://www.stanleyworks.com/bu_airtools.asp

RE: Electric or Hydraulic torque wrench

You can buy pnuematic torque wrenches as well as hydraulic and electric.  There is also manual torque wrenches capable of this torque which is the cheapest of all.  Depends a lot on how you want to torque the bolts.  Are you going right up to 500 ft/lb or working your way up in 3 or 4 steps while also torquing other bolts in a sequence, such is done on a pipe flange.
If I was out in a field I would obviously use the hand wrench, in a shop with an air compressor I might use a pnumatic torque wrench.

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