You guy saw this version of the turbo saw, right?
Tree Removal - Skid Steer Tree Saw - Turbo Saw Tree Cutter
For you normal tractor owners...
Yes, I saw the video. I am still leery of using that type of cutter. My skid steer is standard flow at 21 gpm. That saw in the demo must be hi-flow which would help. On their website, they have models from 10-41 gpm. I can't imagine how the 10 gpm would even work-maybe for cutting grass.
The biggest problem I felt was the binding of the tree on the blade with bigger diameter trees. I believe it is best to cut on just one side of the rotary saw. Yes, it worked much better if the tree was cut so it was falling away from the blade. However, often it takes too much time to reposition the skid steer and sometimes it can only be cut on one side. The wind also tends to push the trees as cutting and pinch the blade. I had binding so bad on the blade, that I almost could not pull the blade free and I have a large frame skid steer. I have chain saws bind in cuts but this seemed much more severe. Their blade is 26" diameter and the bobcat one I used was 24" diameter. Of that 26", much of the center is occupied by the yellow metal cylinder. The actual usuable cutting width of the blade is probably closer to 8". Larger trees will require a second cut on the other side to completely cut the larger trees. Also, I want to cut at ground level, no residual stumps. A tree 6-7" diameter 8-12" up from the ground may be 10-12" at or just below ground surface.
Maintenance must be much higher with replacement/sharpening of the rotary teeth. If they are carbide, probably can't easily sharpen them. Small angle grinder is all I need for my shears. Hit a rock with a rotary cutter and start replacing teeth. The booms of the rotary cutter is also a weak link for lifting or side forces. Also much more stress on the loader/skid boom.
With my dymax, I can half cut and lift down trees to move them out of the way. With rotary cut, the tree lays where it falls and blocks the next tree from being cut. I can also use my dymax like a dozer (has a HD brush guard) and push a tree out of the way. Not easy or recommended with the boom of the rotary cut.
If you see all the variations of tree shears available and in use, very few are rotary blade unless you have a specialized machine with either direct drive or lots of hydraulic flow. Bobcat call theirs a "brush saw". They are smart enough to not call it a tree shear or cutter.
