The splitter name is “super split” The Company that makes them is/was called GFX corp. Mine is the smaller (4hp) J model. I think they are made in Taunton, MA.
http://www2.primushost.com/~logsplit/
I think that’s the link, or someone else’s link to get there. If that doesn’t work, you should be able to find it by doing a search for super split wood splitter.
I bought mine used, around 5 years ago - I think I paid $1,200… worth every penny, IMO. When anyone sees it, they think (like I did)...“that can’t possibly work”... But it does!!