I agree..definitly not cheaper..But i wanted something faster and better build than the stores offered..I looked at a lot of them and didnt like any of them. The only one i have ever run and liked was my father inlaws home built splitter that is probably 30 years old..awesome machine and is the inspiration for mine..
If you are willing to pony up the money to get EXACTALLY what you whant, then that is a different story. Plus the sense of satisfaction.
Personally though, if you want speed, with the $$$ you would have in making a hydraulic unit, I'd probabally look heavilly into the inertia type splitters. If you dont want to pony up the money to buy one of those like the SS or DR, you can always make one of them as well.
But if hydraulics is your preference, and speed is your goal, I'd suggest a 4"x24" cylinder (those will split near anything and going bigger will just slow things down.)
I'd combine that with a 22GPM 2-stage pump:thumbsup: Motor of your choice. That should make for a pretty quick combo. And there was another thread on here(I am sure you seen it) about a Tee wedge. I'd look into something like that as well if this is going to be a horizontal only unit.
Things get a little more complicated when a vertical/horizontal unit comes into play. Because the wedge has to be on the cylinder then.
But the above example of a 4x24 w/22gpm would give you the following
extend...........3.6 seconds
retract...........2.9 seconds
Total cycle of 6.5 seconds.
And if that is a little fast for you, a 16gpm pump will still give a total cycle of 8.8 seconds
Typical splitters you see are
4" cylinder....11gpm
4.5".............16gpm
5"...............22gpm