Quote Originally Posted by Ralphxyz View Post
I would not trust those small welds! There are a lot more surfaces that you could easily weld to make it overly safe.

Ralph
It is not only the welds I do not trust, the rest of the structure is not robust either. That jack would probably safely have lifted about 400kg? My vice can compress 1500kg. Instead of that handle that gets in the way all the time, fit a hex nut and use a portable drill to operate the contraption. Quicker and strong enough.