I have been building a log splitter for about a year now. Unlike all you professional fellas mine is not very pretty. I built it from the ground up with torches, a cheap welder, and lots of junk steel ( including cutting down my basketball hoop for the 4x4 tubing). My idea the whole time was to base it off that green one above, 4 way wedge, log lift ect.... Once I got it to split wood I stopped building for the year and focused on splitting. I recently got a few loads of huge maple rounds, so that got me back on the log lift kick the past few days.
I made many mistakes but the few concerning the 4 way where.... When it's just a 2 way wedge it doesn't sir high enough. It's an 18 inch blade and I welded the 4 way part of it at 9 inches. So when I'm splitting big rounds it doesn't cut all the way through. Also I got a bargain beam that wasn't long enough so as you can see in the picture the blade is at the end of the beam. This lead to the first time I used the 4 way wedge it pushed the blade off the beam and bent everything... So I added more different size bean to the end and have not had a problem since.
here you can kind of see the beam I added after the blade. Also a long low hitch so I can tow it around with my 4 wheeler.
I'm using a 8.5 hp Briggs I think, off of a yard bug. 16 gpm pump with super custom pump to motor mount.... That has worked flawlessly this far
I have a 4x24 cylinder because that was all I could afford. I got that cylinder, a 2x6 for the wedge, and a 2x10 for the log lift from international hydraulics. I got the dual valve, axle stubs, bearings, Hubs, and all tank hardware from splitez. I also called the owner of splitez and asked him some hydraulic questions and he was very helpful and very nice.