I made my own benchtop model. I used bed frames , welded them up. It's indespensible. In the past I broke a vise from over tightening it to press something. I had a part that was stuck and made it to release the part. Glad I did, with a 2 ton bottle it took all of that. I now have a 6 ton jack, the unit was overbuilt, so I think I should be ok . Now I wish it were bigger. I have used it many times, to bend metal, to flatten it, to press bearings. Amazing how useful