Looking for a manual Jack Screw
Looking for a manual Jack Screw
(OP)
Looking for a hand operated jack screw, I think they may be called jack nuts or post jack screw. I need something industrial. I am not looking for the standard jack screws with hand wheels, rather, this one (I have a pic) is manuall spun, with arms that retract, and is lockable. It operates on an acme thread and is in the range of 3-5 ton load. I know they exist, but maybe in Europe (as this is where the pic is from). I am looking for manufacturers, North American preferred





RE: Looking for a manual Jack Screw
Have you searched McMaster Carr?
That photo could be of a custom part of some kind. You can buy ACME threaded rod. All you have to do is tap the nut, assuming you cannot find one off the shelf, then attach handles.
RE: Looking for a manual Jack Screw
RE: Looking for a manual Jack Screw
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada
RE: Looking for a manual Jack Screw
http://ww
Welder's pipe stands. You can find all sorts and sizes at the local welding supply store
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Here is the ubiquitous post jack.
http://ww
If all this fails skip out to the local RV store and look around for mechanical leveling jacks.
RE: Looking for a manual Jack Screw
RE: Looking for a manual Jack Screw
This following happened at my workplace where as most companies there were a number, over 100, of homemade pipe jack stands distributed between site personnel and contractors. One of these stands failed and hurt, crushed knee, a welder's helper. They were never able to get his knee right so he got an artificial knee and had no job. He sued the site and contractor and would have sued the person who built the pipe stand but there was no signature on it. He sue for a bundle but settled out of court.
All pipe jack stands on site are now purchased and carry property number to trace their origin. All are built to some standard.
RE: Looking for a manual Jack Screw
I was hoping to find a COTS item, but it looks like all these solutions require me to modify them in some manner to suit my application. Looks like its a custom job.
imaqt