I got a couple of hours of chipping in this afternoon on my new WoodMaxx WM-8H & I'm very impressed! Stalled the tractor once but only because I had the infeed going too fast for it to handle the piece I was feeding it.
Here's a picture of the results!
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I've had a Wallenstein for several years now and am not very happy with it. I paid for hydraulic feed but have to push most wood into the chipper. Calls and letters to Wallenstein got no answer. If the juniper I put through it isn't pretty dry the chute will clog at the entrance. Then it's time to disassemble I think the slow 540 RPM of the direct drive flywheel is part of the clogging problem. The hydraulic hoses are leaking so badly I will need to replace them before spring. I wanted American made but I think I'll sell it and try the Woodmaxx. Maybe Wallenstein has gotten better but I'm not going to give them another chance.
Jinma is not a real company that makes wood chippers. You can do all the research you want, and you will never find a Jinma Corporation that makes chippers. It's simply the name of a design style that no one owns the rights to.
Just spoke with a rep on the phone at WoodMaxx for a bit... very patient and friendly. She stated that the units are made in China. When asked, she said that the value model (WC-8N) was very similar to the Jinma chippers, but that the higher models (WM-8M/H) are not the same and are much improved. When asked, she said the difference in speed (feed) between the Mechanical and Hydraulic version was 58 ft/min vs 75 ft/min.
I recently bought a Jinma WC8 Chipper from Coldwatertractors in Hoqium, WA. It's being urned by a Yanmar 1700. They charged me $1250 cash for the chipper. So far I have done about....6 or 8 full size pick up truck loads full. I drive a 1998 Dodge Ram 3500, so it's a decent amount of material. So far the blades are still sharp, and it just chugs right along.
I purchased the WC-8 Liberty Implements Wood Chipper
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After about an hour I had a nice pile of chips... and then...