PTO chipper WoodMaxx new MX-9900

[roadhunter]

I'm considering purchasing a PTO wood chipper and had always had my eye on the Woodmaxx WM-8H and then I noticed they have a newer model, the MX-9900. I wanted to get opinions on the new model compared to the old as I am not sure the extra 1 inch of capacity is worth the extra $. $2,800 vs $5,000.

9" PTO Wood Chipper Shredder | Made in the USA | 3pt. Wood Chipper Attachment -WoodMaxx?

8" PTO Wood Chipper Tree Chipper Brush Chipper - Hydraulic Feed

I'm looking to chip material up to about 6" and tend to think that the 8H will do just fine but being made in the USA is tempting and a slightly bigger flywheel would certainly be nice for bigger material.

Anybody have one of the 9900's?

 

[Jkott]

I wish I hadn't seen this post. I got my 8H last year, and it has done everything I've asked of it.

Your link says "chipper shredder" but their website doesn't say anything about "shredder" and I didn't see any hammer mills in the specs.

The 9900 looks to require a min of 6 more HP than the 8H. What types of materials do you plan to chip? I have 22 pto HP and if I can fit it in the throat, I can chip it....though I do have to make sure turn the I feed speed adjustment all the way and still babysit it and pause the infeed at times.

 

[roadhunter]

I thought the same thing when I saw it on thier website lol. I had already convinced myself that the 8H was the best value for a mid sized PTO chipper.

I just used the link off the page. Not sure why it says "shredder". Looks like a chipper to me.

I am looking at mixed pine branches up to about 6".

It looks like the 9900 has feed adjustment above the feed. Is the 8H similar in design? Hard to tell exactly how that worked in the videos'.

 

[Katahdin]

With the 8-H you adjust the feed speed on the side of the unit. The lever above the feed just controls forward, stop, reverse.

I don't think I'd like the speed lever above the feed, seems like over sized branches could easily bump it from the desired position. Branches bump my top lever all the time, but the chipper feed stays in forward gear because the branches would just push it the bar in that direction anyway.

The 8H will chew through pine without any problem, I'm speaking of experience with 32.5 PTO HP. I do like the folding design of the feeder on the 9900, but I'm still happy purchasing my 8H last spring.

 

[LouieJunior]

I have a Woodmaxx 8H and would purchase again vs the new model. The big price difference surprises me. Mine could easily handle everything chipped in the 9900 video. I do wish my older model had the updated base with the skiis -- mine has four wobbly legs.

 

[RoyJackson]

I have a Woodmaxx 8H and would purchase again vs the new model. The big price difference surprises me. Mine could easily handle everything chipped in the 9900 video. I do wish my older model had the updated base with the skis -- mine has four wobbly legs.

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

 

[bob11x]

I am also considering the MX9900. Anyone bought/used one yet?

 

[Glrret]

I also am considering the MX-9900 and I'm torn because the huge difference in the price.

The one thing that is different is the commercial grade components like bearings and shafts on the 9900 vs the VM8 series. Below is a small chart with the stated differences, but one thing that concerned me was how well the chipper would hold up to a PTO with a bit more HP. Would the VM8 hold up to a 55-60 HP tractor as well as the 9900.

 

[5030]

I almost bought one 2 years ago but found an old Jinma 8" (which is the Woodmax economy Chipper) on Craigslist within a reasonable driving distance for a grand and it came with a second set of knives and it needed them. keeping the knives sharp on any chipper is the key so I bought a grinding jig for one of our surface grinders (we own and operate a machine shop) and I keep both sets razor sharp and at exactly a 27 degree bevel. I change them out 2 times a year.

My Jinma is an 8" throat and it will handle either 8" softwood or hardwood knots no issue. I would prefer the hydraulic feed, but for a grand, I can forego that. Most of what I chip is softwood storm damage and sucker trees I cut from my woods. been a great investment and I'm popular with the neighbors for chips too.

I don't think I'd attempt 8" hardwood knots, driving any pto chipper with a CUT and especially not with a SCUT, just not enough ooompa to handle the wood. I drive mine with a 90 pto Kubota M9. I added a Weasler slip clutch on the input end of the chipper because I'm driving it way beyond it's rated input (40 hp maximum) just to be sure I don't blow up the chipper driveline. Been running it 2 years and I've chipped dump truck loads of chips with it, no issue whatsoever. Just keep the knives sharp and it will go through anything.

My 'legs' were way too short when I got the unit, my pto is much higher than a CUT, it's an ag tractor, so I added 2 x 2 angle iron legs with flat bar 'skids' on the bottom, a quick weld, drill job.

Wood Max sells all the Jinma parts including knife sets so parts are a non-issue. I order my replacement parts from them all the time...

The chipper has been a great investment and saves the neighborhood from dealing with smoking brush piles....

 

[hslogger]

The Woodmaxx chipper with the hydraulic feed is steady operating machine that I can not fault at twenty five hours plus CHIPPING TIME. I keep the knives sharp. That is the key to the operation IMHO. Bushy stuff sometimes hangs up as do some nasty dog legs that you gotta buck out but I am really happy with it. Anything can get torn up and wrecked if you want to tear it up and wreck it. I chip orchard prunnings, berry bushes, grape vines, softwood, hardwood.... Even some clean garden debris. The soft stuff like berries and such has to be chased with wood.