I think this is what Glenn was talking about, it uses a 10 ton Porta Power cylinder, but its not fast enough to weld with. Its made of 4 inch channel iron and 3/8 by 2 inch flat iron with 1/2 inch cold rolled pins, I keep it on my service truck for those small press jobs.
Even this one is too slow to weld with, because of the large Cylinders and Low GPM and high pressure of the pump. 3000 rpm, 3000 psi, 3 gpm. 72 ton on 8 inch cylinder, 50 ton on 7 inch cylinder, its capable of over a 100 ton, but the table pins are not.