They have these for sale locally. 25T for $999 horizontal/vertical. Looks like a DHT knock off.
no kidding...how is that a knock off of DHT when DHT is a knock off of Speeco?Arent they all knock offs anymore?
I noticed the no name engine on it although I hear some of the knock off engines are pretty good now.Our local Atwoods store have them. Look well built, but seem everything on them (hoses, cylinder, engine) is Chinese. I guess that doesn't matter as much as it used to, but I still try to buy American made stuff if possible....
The 2-stage pump was probably the best innovation for hydraulic log splitters in the past 20 years. That allowed smaller cylinders and less horsepower to get the job done.Everybody has been trying to improve the log splitter every since the first one was build in somebodies garage way back when ever the first one was built. There have been many improvements along the way, but they all do the same thing which is split wood. They all are pretty basic, a hyd cyl, hyd pump, control valve, and a engine. They haven't really been improved, just different components and combinations of things that have been around for a long time. Even the flywheel splitters are copies of old haybailer and wheel of death, to wood splitter conversions. True, some are made of better quality parts than others, but its pretty much buy one, or its clone and you have pretty much the same thing.
The smaller cylinder reduces the cycle time but sacrifices power. The 2-stage allowed more grunt when the going got tough and yet allowed a smaller cylinder for faster operation. That's what I was trying to say. This chart may help clear it up:I'll agree the two stage pump was an improvement, but it is based off a lot older concept of high/low hydraulic systems. I think you have it backwards tho about smaller cyl and less hp getting the job done. The advantage of the two stage pump is it allows one to use a larger cyl and more flow at low pressure for speed while using a smaller engine and less flow and higher pressure to provide force.
Agree. While i can do the math, I usually just plug in the numbers into one of the many online calculators. Nether the charts or the online calculator takes into consideration the actual pump efficiencies, which tends to give skewed (read as disappointed) results. Example would be using the 5inx2.5, x24in cyl with the 22gpm pump at the bottom of the chart. Total cycle time is stated at 9.7 seconds, When you factor in the pump efficiencies of around 85%, actual cycle time might be around 11.15 seconds.The smaller cylinder reduces the cycle time but sacrifices power. The 2-stage allowed more grunt when the going got tough and yet allowed a smaller cylinder for faster operation. That's what I was trying to say. This chart may help clear it up:
The chart does not address power, but that's implied by the larger bore diameter.
kohler is just another word/name for a sink, bathtub, toilet, and once great small engine manufacturer. . . since the death of the K Series engines Kohler has skidded(brown skidded) to the underpants of small engine makers. IMHO they are no better than a cheap china engine made for Harbor Freight. . . the sad thing is the HF engines can be purchased at a greatly reduce price with a far better warranty. . .lolThey used to put Kohler on them, I thought
If you going to have a custom cyl made, have them put a larger port on the base end. A 3/4 would be minimum for any splitter, a one inch port would allow you to take full advantage of a dump valve if you have or are thinking about installing one.Yes calculator are figured up with no 90degree fittings as far as I can tell
My splitter calculated to be a 11 second cycle time
Real time was almost 14
So it took out all the 90's I could and got it very close to the 11 second make
After looking at the 20,000$ splitter specs and seeing there cycle times
There cylinders are custom built
They put a larger ram in them to make back there cycle time in a safer way for the operator
I have never found a 4.5" cylinder with 3 " ram for sell
So my next mode is taking my 4" cylinder to a hydraulic shop and having a 2.5 " ram installed
As for the steel line all those splitters use between the valve and the end of the cylinder and they put several bends in them to help warm the oil up and but the small ID restricts the flow a lot !
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