Screw Jack

[Old Doug]

I found a Duff Horton ratcheting screw jack 25 ton for sale i have probably used one but cant remember i am thinking about it to carry in my truck because of the dampness and wondering if it will work from setting with a hydrolic jack. Why did these jacks lose out in the market price, weight ?

 

[crane operator]

I have a duff norton ratcheting screw jack, they are kind of a pain to let something down with smoothly, and it can be difficult in tight quarters to get enough throw on the handle.


I'm sure its cheaper and less machine work to build a hydraulic jack vs the screw ratcheting type. I don't think my screw jack is much different weight wise with a hydraulic one of similar capacity.

Some hydraulic jacks won't work on their side- like when pushing out a dent or a pin. The screw jack doesn't care.

 

[petepilot]

fwiw. turn a hyd. on its side pump as much oil into as you can it will usually work on its side

 

[Bumpsteer]

I've got one, no idea on the rating, came from the railroad, I used it to jack up houses. You sure don't reach out and grab it while walking past it. Heavy sob for sure.

Paired up with a couple big screw jacks, one can defy gravity.

Ed

 

[terex herder]

Make sure the pump on a hydraulic jack is on the bottom when turning on it's side. It will work fine.