PTO chipper WoodMaxx new MX-9900

[5030]

Heck, I've run scrap dimensional lumber through my Jinma, no issue. I've even chipped a few PT 6x6's. One thing I learned with the Jinma that might apply to the others is that the faster you run the machine the coarser the chips are so I run mine about 1/2 to 1/3 rated pto speed. That produces the best length chip for me. I've read about plugging at lower speeds on all brands so to insure I have plenty of ait moving in the flywheel area, I pulled the back knife access cover and drilled 2 rows of 8 1/2" holes in the plate to allow more air in and that seems to do the job as I've never plugged mine. I've got way more than 25 hours chipping time, the machine probably had a couple hundred hours on it when I bought it...

I know it's on it's 4th set of knives and the drive belts were replaced at least one time. It's needing a new infeed driveshaft soon. Woodmax has them in stock. Mine was a good investment, especially good finding a used one which I think is rare or at least not common, I've never seen a used one around here except the one I happened on, on Craigslist.

Mine only digests wood. If it had a shredder plate (which it don't), I would consider it to be capable of hammermilling garden residue.

They are all inherently dangerous machines. You want to be very attentive when using one and never allow kids around it when it's running.

I see the newer ones that Woodmax sells now have a kickback shield in the throat area, something I'm going to retrofit. I've had a dew chunks of wood deflect back when chipping and they come out real fast. I've learned not to stand directly behind the chute but rather to the side and I always wear safety glasses and hearing protection, it's a loud process.

 

[LouieJunior]

You ought to give them a call...you can probably upgrade to those skis for a reasonable $$$ amount.

Roy - I think I will call them. I just attempted to locate these on their parts page and didn't see them offered. I did see an iMatch compatible top link for $80. I am definitely getting this as the WM8H, without this option, is not quick hitch compatible.

When I bought my chipper in 2013, this was not a option.

 

[jettharvest]

So what WoodMaxx did you end up going with? I am also considering the WM-8H and MX-9900 but am questioning if the extra $2200 is worth it? I like the bigger flywheel, 4 blades, and made in the US.

 

[mark02tj]

I've only used my new MX-9900 for about an hour, but I'm SUPER IMPRESSED with it!!

It replaced another US made chipper that I had. The old one was a 5" chipper, manual feed. Great chipper, but limited. I could bog my tractor with that chipper if I put in something that was the full 5" diameter and fairly long. With the MX-9900, I ran stuff that was the full 9" with no problem. Ran it through the feeder at a respectable rate. No complaints!!

 

[massey21]

how is the 9900 working now, I'm thinking about buying one

 

[Glrret]

I love my 9900, it is a beast. I have about 40 hours on mine in to years the only problem I had was at the 4 to 6 hour mark the pully on the hydraulic drive pump went out. They sent me a replacement and I haven't had any problems sense.

 

[mark02tj]

Ditto on the 9900 being a beast!! I love mine! It will chew up anything that will fit through the chute. I feed it slow, but it takes it.

The only problem that I had was that the tach/hour meter was DOA when I got it. I emailed WoodMaxx and they told me what to look for to fix it, but I haven't bothered with it yet.

It's a lot of money, but it is a quality piece of equipment. I don't think you'll be sorry that you bought it.

 

[massey21]

Thanks, guys, do you have any trouble lugging it around in the woods being 1000 pounds?

 

[Glrret]

Thanks, guys, do you have any trouble lugging it around in the woods being 1000 pounds?

I haven't had any problems at all. I have mine on a 2555 and I as long as you use the loser holes on the 3 point hitch I can pick i up high enough to clear uneven terrain.

 

[daugen]

I bought the 8800, slightly smaller than 9900, and have run it for about 15 hours. What a delight loading it and just walking away; by the time you get back with the next batch it has sucked the load through. I found the chipper really only likes running at slow input speeds with any size wood over several inches. Makes a huge amount of noise; hearing protection for sure. The 9900, for a thousand dollars more, is likely to go through heavier stock a little easier but I am absolutely satisfied with the 8800 for my tree trimming and brush removal.
This machinery is built very nicely; for me the extra grand to get a unit built in NY was worth it. Maybe not for performance but for peace of mind.

I am very interested to hear how long others get out of a set of chipper blades. I figure after fifteen hours I'm ready to turn mine around to the other side. I bought their spares kit just to be ready. I chip a fair amount of pine so at least that's softer wood.