(MX-9900) USA 4-pc. Flywheel Knife Set
$310.00
Product Details
- Proudly Made in the USA!
- USA and International Patents, additional Patents Pending
- POW-R-TORQ™ (Patented Self-Contained Hydrostatic Infeed Drive System)
- Requires only 2 quarts of Motor Oil!!!
- 25 Minimum PTO Horsepower
- Four (4) Made-in-the-USA Reversible Chipper Knives (offset)
- Easy Knife Access
- Clear Vinyl Chip Baffle
- 1200 RPM Flywheel Speed
- Fold up In-feed Bin
- 9″ x 9″ In-feed Opening
- 8″ Diameter In-feed Roller
- 225 lb.- 26.5″ diameter Dynamically Balanced Flywheel
- 3/8″ Thick Structural Steel Blower Housing
- 5 Heavy Duty Cogged V-Belt Drive
- Safety Stop Bar / Speed & Direction Control Bar
- 360 Degree Swivel Discharge Chute
- Automatic Pump Belt Tensioner
- High Flow Flywheel Chamber Ventilation
- Sleek Hydraulic Hoses with Nylon Hose Wrap
- JIC Hose Fittings
- Industrial Grade Bearings
- High Tension Gas Springs
- Tachometer/ Hour Meter (to ensure proper flywheel speed)
- Weight 1000lbs.
- Baked-on Polyester Powder Coat Finish
- 3pt. Hitch Mount-Fits Cat 1 or 2, and also Cat-1 Quick Hitch
- Premium PTO Shaft included with all MX- series chippers
- 100% assembled upon delivery
- 3 Year Warranty
- Spin on oil filter
WoodMaxx MX-9900 Wood Chipper with Hydrostatic Infeed
MADE IN THE USA
WoodMaxx Patented MX-series wood chippers are designed, engineered and manufactured in the USA at our Akron NY facility. With a multi-million dollar investment in the latest high-tech fabricating equipment to increase production, WoodMaxx MX-series Wood chippers are in high demand. Due to high demand, please call for current production time.
MX-9900 PATENTED HYDROSTATIC AUTO-FEED WOOD CHIPPER
The WoodMaxx MX-9900 hydrostatic auto-feed chipper is a robust self-feeding PTO wood chipper. This wood chipper is extremely compact, and built to withstand commercial use. The hydrostatic drive system in-feed roller pulls material into the chipper head using a powerful, high quality, Danfoss hydraulic motor. This motor is powered by the chippers self-contained hydrostatic pump and reservoir. Four (4) High quality (A8 tool steel) made in the USA knives are standard equipment on all MX-series wood chippers. The design of the WoodMaxx MX-series chipper is so unique and innovative that it is now USA and internationally patented.
Exclusive POW-R-TORQ™️ | What is POW-R-TORQ™️?
POW-R-TORQ™️ is an exclusive WoodMaxx infeed system that is so unique that it is trademarked and patented. This system is a combination of our patented hydro-static pump-motor, specially designed infeed roller, nitrogen filled gas springs, automatic belt tension device and American made A8 tool steel knives. All together these features combine to create the most powerful, efficient, and speed variable infeed system available on ANY woodchipper on the market today. POW-R-TORQ™️ is only available on WoodMaxx MX-series woodchippers. Take a look below for more information on each of these key features.
MACHINE 100% ASSEMBLED ON DELIVERY
The WoodMaxx MX-9900 wood chipper comes shipped to you on a wooden skid and is 100% completely assembled. Simply attach the MX-9900 wood chipper to your tractor, lower the in-feed bin, raise the discharge chute, size and attach the PTO shaft (included), and fill the oil reservoir with 2 quarts of 10-W40 motor oil. The WoodMaxx MX-9900 wood chippers are manufactured and assembled right here at our facility and are given a comprehensive 22-point inspection, prior to leaving our warehouse. Follow the user-friendly operator manual and you will be chipping in no time at all.
SELF-CONTAINED HYDROSTATIC IN-FEED DRIVE SYSTEM
The WoodMaxx patented hydrostatic In-feed system is comprised of a self-contained hydrostatic pump, filter and reservoir that requires only two quarts of motor oil to power the In-feed motor. Unlike a standard hydraulic system, a hydrostatic drive system is so powerful that it is used to drive bulldozers, trains, excavators, skid steers, and even ride on lawn mowers. This hydrostatic system uses conventional 10W-40 motor oil and is so efficient, and generates so little heat, that it requires only a fraction of the reserve oil as a standard hydraulic drive system.(Why can’t I use synthetic oil in my wood chipper? Click here to find out.) This type of system also allows for complete speed control from 1 ft./min to a full 75 ft./min with full power through the entire speed range. The Hydrostatic drive system on the Woodmaxx MX-9900 is so unique to the industry, that it is now patented.
TACHOMETER/ HOUR METER
WoodMaxx MX-series wood chippers are now equipped with a convenient tachometer/ hour meter. The tachometer allows the operator to see the actual RPM of the flywheel to ensure that the chipping head is running at the optimal recommended speed. Proper flywheel speed is important to develop the inertia required to chip hard material and evacuate the chamber effectively. The hour meter is helpful to ensure that proper maintenance intervals are kept in accordance with WoodMaxx recommendations. This all-weather meter is water proof and weather tight.
USA "DANFOSS" BRAND HYDRAULIC MOTOR
WoodMaxx MX-series wood chippers are equipped with USADanfoss Motor “DanFoss” brand hydraulic In-feed motors. DanFoss is renowned for their high-quality American engineered hydraulic motors.
FOLD UP IN-FEED BIN
The WoodMaxx MX-9900 PTO Wood chipper attachment is equipped with a fold up In-feed bin. This feature allows the user to simply fold the In-feed bin upward for storage or transport.
TRUE 9" x 9" IN-FEED OPENING
The WoodMaxx MX-9900 wood chipper offers a larger 9″ x 9″ In-feed opening to easily accept those crooked branches. This is the largest in-feed opening available of any PTO wood chipper in its class.
3/8" THICK FLYWHEEL HOUSING
The WoodMaxx MX-9900 PTO wood chipper is manufactured using heavy gauge 3/8″ thick (American Standard A-36) structural steel plate for the flywheel housing. Since the flange bearings are mounted on the flywheel housing, this gives added strength and rigidity.
EASY KNIFE ACCESS
WoodMaxx MX-series wood chipper knives can be changed easily by one person in as little as 10 minutes. The entire top of the blower housing opens like a clam shell, allowing for easy access to the flywheel and knives.
HEAVY DUTY 5/8" COGGED DRIVE V-BELTS
WoodMaxx MX-series wood chippers are equipped with five extreme duty 5/8″ wide EDPM rubber cogged drive V-Belts that are made specifically for WoodMaxx. Cogged V-belts run cooler, and transfer more torque than plain smooth V-belts. Although the OEM belts are very high quality, if the need arises, the standard size BX belts allows you to purchase replacement v-belts at any auto parts store.
SAFETY AUTO FEED STOP BAR & IN-FEED ROLLER SPEED ADJUSTMENT
Safety is paramount on WoodMaxx wood chippers. Located on the top of the In-feed bin, the MX-9900 utilizes an easy to activate hydrostatic auto-feed stop safety bar to disengage the In-feed roller in case of an emergency, or to clear the In-feed bin if necessary. Simply pull the bar forward to increase the speed, and push it forward to decrease or reverse the In-feed speed and direction. The hydrostatic drive system is so refined that the In-feed speed is fully adjustable from 0-75 ft./min.
HINGED IN-FEED HOPPER
All wood chippers will require some routine maintenance like adjusting the gap between the bed knife and the flywheel knives as they wear. This gap is essential to proper operation of the wood chipper. The in-feed hopper on the WoodMaxx MX-9900 swings open to expose the bed knife, allowing the user to access the knife to make adjustments. Simply remove 2 bolts and the hopper will swing open like a door. This feature is exclusive too WoodMaxx. Other chippers require the user to crawl into the infeed hopper to change the bed knife or adjust the gap between the bed knife and the flywheel knives.
8.25" DIAMETER OCTAGONAL SHAPED COMMERCIAL STYLE INFEED ROLLER -
A WoodMaxx exclusive and patented design. Everyone knows what happens to the branches when they reach the flywheel knives of the wood chipper, but getting the material to pull into the wood chippers effectively and quickly is the trick. Many factors must be considered when designing an effective In-feed Roller System: the overall diameter, knife spacing, tooth angle, type of steel, hardness, down pressure and In-feed speed. After countless hours of research and development on the In-feed system, we have developed a large diameter (8″) octagonal shaped In-feed roller. This exclusive design allows the chisel shaped teeth of the roller to grab and climb up and over the branches to easily bite in and effectively pull the material into the wood chipper flywheel at speeds up to 75 ft. /min. In short, the larger the roller, the easier it rolls over the material. The smaller the roller, the more likely it is to slip and spin on the branches. Similar to how the small wheels of a shopping cart stop when contacting a small stone in a parking lot.
To prevent material like tree bark and leaves from impacting between the teeth of the In-feed roller, we spaced the chisel teeth out. This spacing allows the complete down pressure of the high-tension gas springs to be focused on one chisel tooth at a time increasing total down pressure. Additionally, this spacing allows the roller to self-clean. These rollers, along with the high-tension gas springs aggressively bite into any type of material. The advantage of his type of roller is that it aggressively grabs any size limb with or without leaves up to 8″. Long or short needle pine, as well as small, vine type material is no problem for the WoodMaxx MX-9900 wood chipper. Small branches, leaves, or vines won’t wrap around the Infeed roller as they would on other wood chippers.
EASY SWIVEL DISCHARGE CHUTE -
The WoodMaxx MX-9900 PTO wood chipper is equipped with a 360 degree swivel discharge chute. With easy two finger operation, we have incorporated a convenient handle that effortlessly allows you to swivel the discharge chute 360 degrees so that you can direct the chips into a trailer or the back of a pickup truck without having to move the entire machine. Simply push down on the handle and swing the chute, when you release the handle a spring-loaded pin drops down to lock the chute into position. No tools required.
HIGH FLOW FLYWHEEL CHAMBER VENTILATION -
WoodMaxx MX-series wood chippers incorporate a series of precisely located ventilation holes in the flywheel chamber. This feature creates a strong vacuum that draws air into the flywheel chamber and in combination with the fan blades on the back of the flywheel forcefully ejects the wood chip s out of the chamber. This keeps the discharge chute clear, and reduces the chances of a jam. The WoodMaxx patent pending hole pattern is specifically designed to bring the air into the chamber at the optimal volume and location.
JIC STANDARD HOSE FITTINGS
The WoodMaxx MX-9900 wood chipper utilizes JIC (joint industrial council) hose fittings that are rated for 5000 psi. For you this means that if you ever need to replace a hydraulic hose, that your local tractor supply or auto parts store can make hoses while you wait. JIC fittings are widely used in hydraulic fluid transfer, the military, and are typically very easy to come by. No trying to chase down an adapter because of mismatched threads.
IN-FEED ROLLER TENSION GAS SPRINGS
The WoodMaxx MX-series wood chipper utilizes USA made high tension gas springs. These gas springs maintain the same tension throughout the entire range of motion. This feature also slows and dampens the downward motion of the In-feed roller to prevent the infee roller from slamming downward, ultimately increasing the longevity of the components. These high-tension gas springs achieve 185 lbs. of downward force that allows the teeth of the In-feed roller to dig into the branches and ensure a smooth entry into the chipper head.
CLEAR VINYL CHIP BAFFLE
Safety is paramount, therefore all WoodMaxx chippers are equipped with a clear vinyl baffle feature that protects the user from chip blow-back, while allowing the user to see what is going on in the hopper.
NYLON PROTECTIVE HYDRAULIC HOSE WRAP
Along with the simple two hose configuration, the MX-9900 includes the additional protection of nylon hydraulic hose wrap for long life. This hose wrap reduces chaffing and protects the hoses from abrasion and environmental damages.
STRENGTH IN DESIGN
WoodMaxx MX-9900 wood chippers are the perfect combination of size, weight, and features. Compact enough to easily move around, yet strong enough to get the tough jobs done. MX-series chippers are loaded with features typically found on much larger commercial machines that are much more expensive. The strength of our machines starts with using heavy formed (American standard A-36) structural steel plate. Each piece is laser cut, on a precision fiver optic laser and meticulously welded by highly skilled American welders. WoodMaxx MX-series chipper exclusive structural design includes a 2″ diameter main shaft that passes through the flywheel housing and is supported by two flange bearings. This feature, combined with the 2″ shaft, allows the flywheel to run true and adds a great deal of strength.
26.5″ DIAMETER FLYWHEEL
WoodMaxx MX-9900 wood chippers use a 26.5″ dynamically balanced flywheel, paired with specific engineering components, to deliver 225 lbs. of energy to quickly and easily chip a variety of branches. This perfectly balanced system is the ideal weight.
FOUR REVERSIBLE MADE-IN-USA KNIVES 
The WoodMaxx MX-9900 wood chipper is equipped with four USA made and offset, reversible dual edge knives installed. These knives are attached to the flywheel with made in USA Holo- Krome class 12.9 bolts. Four knives, and they are offset so that with every 90 degrees of rotation, the knife is taking a slightly different cut of material. This is equivalent to using a serrated knife to cut bread instead of a straight knife. Ultimately, this feature allows for chipping large material without overworking your tractor. The reversible knives means that you get twice the work out of one set! Designed for extreme-duty – there is no better material than A-8 hardened tool steel for superior performance and life. Click here to learn how long your chipper knives will last.
AUTOMATIC BELT TENSIONER – 
The hydrostatic pump belt tensioner is automatic on the MX-9900 wood chipper. This feature keeps consistent and correct pressure on the drive belt. If the drive belt is too tight, then excessive bearing and/or pump failure is likely. If it’s too loose, it will slip, resulting in loss of performance. This feature eliminates the need to adjust the belt, ensures that proper tension is achieved, and increases the longevity of the pump and bearings. It also saves you the hassle of constant adjustment.
MAIN SHAFT SUPPORTED BY TWO INDUSTRIAL FLANGE BEARINGS
The 2″ main shaft on the MX-9900 PTO wood chipper passes through the flywheel housing and is supported by two industrial flange bearings. This feature, combined with the 2″ shaft, allows the flywheel to run extremely true, while adding a great deal of strength. Competing machines use a 1-3/4″ shaft in conjunction with two pillow block bearings, and the flywheel is cantilevered beyond these bearings. With this setup, there is a possibility of breaking a bearing housing if the machine jams.
WIDE FOOTPRINT SUPPORT BASE
Due to the robust weight of the MX-9900 PTO wood chipper, we have developed a strong support base. To prevent the machine from sinking into the soft ground during operation, the new MX-9900 offers a wide footprint skid type support base. This skid shoe type base is angled upward on the end like a ski to prevent it from digging into the soft ground during operation.
SLEEK HYDRAULIC HOSE CONFIGURATION
The hydraulic hose configuration for the WoodMaxx MX-9900 requires only two streamlined hydraulic hoses. This is possible because of the patent pending upgraded hydrostatic drive system that eliminates many of the components and hoses of traditional open hydraulic systems. This feature makes future maintenance a breeze.
WEIGHT
MX-9900… 1000lbs of American made steel!
RUST RESISTANT POWDER COAT FINISH
The WoodMaxx MX-9900 is finished with UV stable fade-resistant polyester powder coating that is baked on at 450 degrees. Powder coating finish is thicker and more durable than ordinary paint.
PTO SHAFT
The WoodMaxx MX-9900 wood chipper includes our Premium PTO shaft that retails for $250 if purchased separately.
3 YEAR WARRANTY
The WoodMaxx MX-9900 wood chipper comes with a 3 year warranty. Our service department also stocks a full line of replacement parts if the need arises.
IS THE ORIGINAL
WoodMaxx is the original chipper of this design. After hundreds of hours spent designing, testing, and research and development to create this wood chipper, WoodMaxx offers the highest level of quality and innovation with many exclusive features not found anywhere else. With the highest quality of workmanship and history of satisfied customers that WoodMaxx has, we are confident that you will be completely satisfied with this machine.
EXPERIENCE
WoodMaxx MX-series wood chippers are extremely robust, and can handle very heavy use. Designed and manufactured in upstate New York, each machine we offer is thoroughly tested on our 18 acre proving grounds before being offered to the public. With years of experience and thousands of machines in service today, we are confident that this machine can handle even the toughest projects that you have. Our machines are currently in service in several commercial applications, such as: the Army Corps of Engineers, college campuses, municipalities, The US National parks service, tree farms, golf courses, apartment complexes, and thousands of residences. WoodMaxx chippers are also represented around the globe, with machines as far away as Hawaii, and Alaska, as well as several countries including: Chile, Russia, Panama, Colombia, Poland, United Arab Emirates, Israel, West Africa, Greece, Norway, Iceland, Ecuador, Honduras, Ireland and of course Canada.
SERVICE
At WoodMaxx our service department is staffed with professional certified technicians that inspect each machine before it is shipped. This ensures that you get a trouble-free machine from the get go. When you need technical help or parts, our courteous staff can help you get what you need from our fully stocked warehouse.
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36 reviews for WoodMaxx MX-9900
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Brianne –
We did alot of research before buying. Very happy with performance. Worth every penny!
Lee Samuelson –
We just received our new chipper last week and it is awesome. Our family farm in Oregon was hit hard in last summer’s wildfires. We have lots to chip up as we get things back in order. The MX9900 is behind our Kubota L4240 GST tractor (40HP PTO) and it devoured dried Douglas Fir and Maple up to 4 inches easily, with some green limbs up to 5 inches. I did not try chipping anything larger. The unit arrived in excellent condition and the set up was a piece of cake. Very stout and heavy built. I appreciate the hydraulics are all well shielded. I was surprised by how small the chips are. Thanks Woodmax!
Jerry Brumfield –
I have ran my MX9900 chipper now for 6 yours without any problems! I am impressed with the feeder and chipping capacity. I have chipped up to 6″ which did good just a little slow. I chipped red oak, cherry, sweet gum, poplar, maple, pin oak, and privet hedges. I fed 3″ limbs without slowing down, I am very pleased with my chipper and would recommend it to anyone!
Ken M –
After we cleaned out our creek bottom here in CA central coast range location, we realized we needed to do something with the brush..which consisted of willows and sage brush material. We knew we didn’t need the 9″ machine for large wood but the mass of smaller wood would take forever using something smaller. The 9900 ate everything we fed it. No issues with plugging. The hyd infeed is the ticket. It fed the material into the machine keeping the operator at safe distance and able to grab more material to feed. The smaller material diameter material in bulk concerned me thinking it might plug..it was very fibrous also. No plugs. Ran off-and -on for two days…not a hiccup. Well built and American made! Another selling point. We are so glad we chose the 9900 and plan to feed it some oak this weekend, anticipate no probs.
Larry Neal –
We got burned out in the California wildfires in August. Staring at what looked like a mountain of downed trees, I put my name on the waiting list noting my need. A couple of days later I got a call informing me they had a machine ready to ship now! In the last 2 months I’ve put about 100 hours on the machine solo and not a single hiccup. The charred wood is pretty hard on things and it’s just now showing signs of needing some attention. I’m using a quick hitch which did away with having to cut down the driveshaft and makes hookup a breeze. I did make 1 mistake. As is my custom with my tractors and implements, I hung the clip for the chute cover back on the tang so I wouldn’t lose it. It rattled loose and fell on the chute deck but I caught it in time. It goes in my pocket now. Thank you WoodMaxx!
Mike –
I elected to go to the top of the list on available 3 point chippers when I bought this unit. Nothing about clearing brush or overgrown property is easy or timid. I didnt want to regret not buying a chipper that left anything on the table for the power available to me with a 50 hp PTO. Quality of this chipper is unmistakable. Beautiful welds and heavy steel throughout. Everything about this unit is built for its purpose of feeding unruly heavy brush and small trees into the hopper and creating a pile of chips. It doesnt vibrate, the RPMs stay constant through the work load and chips are thrown 20 feet away. Vines were not wrapped around the feeder despite being all over the scrub being fed . Feed was predictable and instant. Buy with confidence its a great 3 point chipper
Glynn Wallace –
Finally got a chance to use this and I’m very impressed. Even though my tractor (Kubota L3400) is at the low end of the allowable horsepower range, it chipped everything I threw at it. I haven’t tried anything larger than 6 inches yet (because I use things that big for firewood), but up to that point it had no problem going through the wood I put through there. I also like the hydrostatic feed – had a lot of small trees with wide/numerous branches, but it never missed a beat pulling them through. Just regulate the feed rate to match the thickness of the wood you’re putting through it and this thing will do the job.
Ben –
I bought a WM-8H from WoodMaxx last year and loved it. I put 69 hours on it behind my JD 5075e cleaning up blow down and trimming trees on my 35 acres. My neighbor also loved the WM-8H so I sold it to him for near what I originally paid and upgraded to the MX-9900. On first impression I like the indeed chute much better on the MX-9900. It is smooth with no fasteners for the branches to catch on like the WM-8H. I also like the foldable chute, garage space is always tight.
As for the chipping it definitely seams to be faster than the WH-8H, my first thought was that I would need a helper to feed the branches fast enough. All in all it’s what I expected, a decent upgrade from the WM-8H. If you have a lot of chipping, value your time and appreciate nice machinery then you should buy the MX-9900.
Jeff Burton –
20 hours on the meter. I upgraded from the DC-1260. I was a little hesitant because I liked towing a chipper behind my side-by-side, but I am so glad I did this. This saves so much manual labor, because you don’t have to hoist material into a vertical position, and most of the time you can walk away after the rollers grab the branch. 90% of what I chip is buckthorn, and this can take the entire tree, no problems. I chip up to 6″ logs. I have gotten in trouble exactly once – a big forked branch got stuck and I couldn’t back it out – but that was my fault for not limbing properly. Everything about this machine is high quality. Worth every penny. Great job, Woodmaxx.
Michelangelo –
Hours upon hours of research going through all the different kinds of PTO driven chippers.This chipper topped every single chipper out there. After receiving the chipper, I went through the whole machine, and I came to the conclusion that this was a VERY well built machine. When it comes to the actual chipping portion, this machine chips wood in small, nice looking chips as well as throws the chips easily 15 to 30 feet away and that is with a John Deere 2720 Tractor. At first I was hesitate because our tractor is 31.4 HP at the ENGINE and 23.5 HP at the PTO and it says that it needs at least 25 HP at the PTO but after consulting with the representatives with WoodMaxx (very nice people), they ensured that it would be okay to use. And they were right!!! I have had no problems with it and it eats brush like nothing else. Very happy and satisfied with this chipper and I would 100% recommend this machine to anyone in the market for one. Very happy, Thank you WoodMaxx!!!
John Tenerowicz –
Received the chipper in February and got the first chance to use it last week. Ran it off a 3901 Kubota and I am very pleased with its performance. Fed it 6″ cottonwood with no issues. Did a great job feeding crotched branches. Had to do some chainsaw work on some limbs but that is necessary even with larger self contained chippers. This unit will do everything I have planned for it. Very pleased!
Dale K –
Very well built machine, for the dollar I think it’s hard to beat. Couple scratches that needed touch up paint that was sent promptly without any problems. Handles big wood well, still need to trim some of the larger limbs but for what I am doing glad I went with the larger infeed and hydrostat.
Robert Carter –
Manzanita live oak digger pine no problem.
Better than expected. Running with Massey 1750M and premium shaft.
Would advise to cut PTO shaft shorter than advised so it doesn’t bottom out at max 3 point elevation when elevating for travel. Love the extra capacity and hydrostatic reversible feed. Easy for this 68yo to run.
Mike Shannon –
I PURCHASED MY WOODMAXX CHIPPER ABOUT 6 MONTHS AGO. I AM PRESENTLY CLEARING 25 ACRES OF CEDAR IN THE TEXAS HILL COUNTRY . SO FAR IT HAS BEEN AN AMAZING CHIPPER, VERY DURABLE AND KEEPS FROM HAVING BURN PILES EVERYWHERE. GREAT PURCHASE
GLAD I WENT FOR THE 9900 SERIES.
Ted Bumbalough –
Ordered the chipper on Wednesday and it shipped on Friday and I received it on Tuesday. Once home the machine was uncrated and parts kits removed and inventoried and everything I had ordered was there. The assembly, what little was required was completed. I found a couple bolts needing tightened but nothing major. I did find the legs did not go down far enough to get the 15 degrees needed with chipper on the ground so I will have to modify the bottom of the shipping crate to raise it enough to get the required angle. I was under the impression the feet could be lowered to get up to a 30 inch height, but I did not find that to be the case with my machine. After I got it put together ran it according to instructions and then ran some limbs through machine and it chipped them easily. So far I am extremely satisfied with the machine, the way it operates, and the ease of dealing with Woodmaxx.
Jeff Woodard –
I paired my new MX-9900 with a Kubota L3901 and am VERY happy with the result. It took me a while to shorten the PTO shaft as the book instructions were for a little different style than the one I received, but once I figured it out it was quite simple. My first full day using it, it ate through a huge pile of earleaf acacia, Brazillian pepper, cabbage palm leaves, and Shefflera trees. It didn’t do a great job with a saw palmetto, trunk, as it tends to shred more than chip. I was able to make a nice, neat pile of mulch much faster than I could have stacked it on a trailer and hauled it to the curb.
Howard Hall –
Awesome machine, well designed and well built. Love that it is American Made, through and through. We are chipping Olive trees, Citrus (Lime), Pepper Trees, Banyan, Eucalyptus, and coffee. The hydro static feed, the heavy flywheel, and the four cutting blades (rather than the usual two) handles the most twisty and branchy material as well as large diameter logs. Very satisfied with this purchase. We are in Hawaii and we use this WoodMaxx MX-9900 chipper year round with our Massey Ferguson 1433 tractor.
Timothy Terriere –
A very nice addition to the implement shed. All the good things previously mentioned by the other raters is true. What a great machine, we are cleaning up our five acres after a wild fire, and this eats the dead trees and limbs and spits them back to the forest with speed. worth any wait . Good Job Wood Maxx
Sam –
Got my 9900 up and running behind a J D 3038E.
Had a a little problem cutting the drive line down, there wasn’t much room between the PTO and the chipper input shaft. But it worked out.
This machine is AWESOME!
I am chipping Manzanita that has been down for 2 plus years, it’s hard as nails. I’m chipping 4″ – 5″ branches that will dull a saw chain.
I’m also chipping Black oak, Live Oak and Pine.
I have run a-lot of commercial chippers.
For the money, I would recommend the 9900 to anybody looking for a chipper with horse power to power it.
My New Favorite Toy! Sam
Stephen Cook –
This is the second chipper from Woodmaxx that I have owned. I upgraded to the MX-9900 from the MX-8800 and I am 100% pleased with the decision. Time from order to delivery was admittedly a bit long (several months), but patience is a virtue right? Good things come to those that wait in this case….the chipper was worth the wait. I was impressed with the 8800 and the 9900 is even more impressive. It is built with excellence in mind, and it performs with excellence which only speaks volumes to the design and craftsmanship of WoodMaxx products.
The chipper arrived almost ready to go just like says on the website. If you are on the fence about which chipper to buy I would say go with the bigger size chipper. Woodmaxx products in my experience are very well built and priced very well for the quality of the product you end up getting delivered.
Patrick Student –
The chipper arrived in perfect condition, chipper and packaging. Easy to set up, though I walleyed the holes on the skid so I could use 1/2″ bent pins instead of the furnished bolts as it has to be collapsed for storage.
Have been using it for little over a month and have about 40 hours on it. So far it has handled nearly everything I’ve fed it, refusing only 2 pieces about 7″ diameter, though it has handled almost 9″ logs.
The selling points are its compact design, fold up feed chute (Has share a garage with other equipment), the clear baffle rather than black on all the chippers I’ve rented, and the positive locking discharge chute, appears to lock at 30 degree intervals.
I’ve chipped a mixture of freshly cut trees to dead elm (about 50%). Inspection of the blades shows essentially no wear, with only a wire edge on one blade which a few stroke with a medium grit diamond file removed.
Would definitely recommend it to a friend.
robert raper –
I have put 6 hrs on this machine and have had no issues. I am very happy that I decided to go with the MX-9900. The quality on the machine is 100%. Nice to see great things are still made in the USA.
John Vasas –
The chipper was delivered to my house in perfect condition. I unpacked the chipper and connected to my John Deere 3032E tractor and put it to a test. The chipper worked perfectly with my tractor. The tractor handled the chipper with ease using different sizes of branches and logs. I was impressed by the chipper’s smooth operation with little vibration. The chipper is built very rugged and I expect to receive many years of service from the product.
Dave Osland –
The MX-9900 is working good so far. Mainly use to chip oak branches 3″ and smaller.
I like the variable speed feed- slow for big stuff, fast for small.
like many tools, get something bigger than something just (big enough). Though a 9 inch opening, you’d never try something that large- maybe 5 inch max in my opinion.
I Have not noticed any loosening bolts as some have reported.
I like made in USA, free shipping, and standard parts that are available.
Deane Rapp –
I collect storm damaged/unwanted trees for lumber and have been in need of a rugged, well-built yet affordable chipper. After much research and discussion with Wood Maxx folks I decided to purchase the MX-9900. It arrived yesterday in excellent shape considering holiday and severe weather delays. Today, I used this fantastic machine for several hours chipping slabs from the sawmill and branches from trees neighbors had me remove. I am very impressed with its performance. The native hickory and oak trees do not have straight branches, yet the MX-9900 did not stop feeding them to the knives and there were no snags in the hopper! I could start a slab or branch and turn away to get the next piece to chip without worry and develop a steady work flow. The clam-shell access to the knives is impressive as well as the straight forward design of the machine overall. I refuse to burn and am very confident I will have many happy hours producing chips as an end product.
Anonymous –
My first impression was that the unit was smaller than I expected but during my walk around inspection and set up, it’s exactly what it needs to be and was proven during operation. My tractor PTO is 37 hp and was more than adequate to handle anything that would fit in the unit. With that said the hydro-static feed is a very nice feature on this model to adjust the feed roller when you work with larger diameter wood. My hat is off to the Woodmaxx team for making an excellent chipper for tractors under 70 hp. Thank you!
Mark Swanson –
I have 4 hours on the machine and so far it has performed as advertised. I have 26 acres that has invasive honeysuckle and grapvine on it. The machine has been keeping up with us without a problem. Rountine maintenace looks like it should be no problem. I have inspected the blades and they are still in excellent condition.
Norman –
The MX-9900 wood chipper was delivered as promised. Set up was easy and the instructions for cutting the PTO shaft was very straight forward. I bought a PTO driven cement mixer from a different manufacture and the instructions for sizing the PTO shaft was very poor, I only had time to try the MX-9900 wood chipper for a short time, but so far I’m pleased with the construction and attention to detail. Seems to be a robust machine. I will follow up with a longer review after I use it for a longer period of time.
Tim Lucas / Richmond VA –
I’ve used the chipper now for 3 hours. It continues to perform exactly as I had hoped. No problem with large oak branches or 15 ft pine branches. I cut a lot of trees each year and the biggest problem has always been the transport and disposal of the limbs. Now I just leave them in a finely chipped layer in the woods and just haul off the logs. EXTREMELY pleased with this purchase. So confident in this company I’ve already placed an order for a pto snow blower.11/17 Have now used the chipper about 8 hours/5 different times. Works perfectly every time. Would highly recommend this product and company.
Update: I now have 26 hours on this machine. It has worked flawlessly the entire time. Couldn’t be happier.
Thomas Parmiter –
I was blessed with the opportunity of purchasing the very first WoodMaxx MX9900 off the production line. As a result I have gotten to know the owner of WoodMaxx and the engineer who designed it; as both were adamant in ensuring the MX9900 lived up to its expectations. I cannot say enough good things about both these gentlemen and the company as a whole. They are truly committed to putting the best product forward they can.
I am a certified arborist and have worked with a wide variety of chippers. This is without a doubt the best chipper I have used of this size. Moreover, if you look at it from a value perspective (AKA ?bang for the buck?) no other chipper even comes close. This is the only chipper I have for my business and have run it literally all day long for multiple days straight. I am well into the hundreds of hours and counting with no significant issues. If you know you are planning to use it extensively then be sure to purchase a second set of chipper knives.
Robert P. (verified owner) –
We took delivery of our new MX-9900 wood chipper last Thanksgiving, but due to the early snow, weren’t able to use it until April of this year. The chipper worked very well during its first weekend of use though we weren’t surprised. Just by uncrating it we knew we had made the right choice. Near Memorial Day, we used it for 3-4 hours every day for about five days. This is where we really began to appreciate it. Everything had been very well thought out. The ease of access to the blades for sharpening and the ease of adjustments were clearly planned into the design. The unit is heavy and quite solid. It isn’t scary to operate. We have 15 overgrown acres of most every type of tree out there and really enjoy how quickly it turns limbs into chips. No longer do we have to deal with the burn pile, especially with such fire danger all around us. Safety was obviously of utmost importance in the MX-9000’s design, from the design of the safety bar to the distance from the back of the machine to the feed rollers. We are very satisfied with the MX-9900!
Gregg (verified owner) –
Myself and my partner spent a considerable amount of time researching chippers. We settled on a Woodmaxx 9900. We’re very pleased. It chips trees larger than I thought it would, with ease. The main feature that we found appealing and the deciding factor to buy a Woodmaxx was the hydro feed. We’ve used it hard and it has lived up to our expectations. The entire order, payment, and shipping process was easy to navigate. I would recommend the product to family and friends.
Glenn –
We researched chippers extensively. We wanted a heavy duty unit as we have worn out two decent but underbuilt machines. We were intrigued by the Woodmaxx offering and have visited the factory. One look at this unit and you know you have found something unique and exceptional. It is built to be used. We hooked it up to a Kubota M and had at it. The flywheel and multiple knives handle everything we have thrown at them so far. The operation of the feed is smooth and effortless.
The setup is easy and quick. The operation of the unit has been flawless. The price is reasonable, and when you look at the quality of the construction, from the design and engineering through the welding and assembly the value for the price is unmatched by anything we found while searching.
If you would like to discuss the machine or take a look at it please feel free to contact me anytime. For privacy reasons I would rather not list my contact info, but Woodmaxx will provide it to you if you are interested.
John Olson (verified owner) –
This machine is awesome and delivers the advertised results. I’ve fed everything from Yaupon brush to 8″ diameter 20+ foot trees and it reduces it all to a pile of chips quickly and easily.
Paul M –
I have been operating my MX9900 about 3 weeks now and have 40 hours on it. I did not want to write a review on it until I put it to the test. Needless to say, I am totally impressed. Everything that is described about this chipper on the website is accurate. I have put everything from small limbs by the armful to 8″ trees through it and it eats it all with ease. It was easy to setup and I really like the fact that it has a two quart oil reservoir to operate hydrostatic motor on the feed roller instead of hydraulic lines attached to the tractor. My tractor is 25 PTO HP and it runs this chipper with ease. This chipper is built for heavy use and is easy to service. In my search for a chipper, I didn’t find one that comes close to this for the price. You will not be disappointed in a purchase of this unit for sure!
One thing that Woodmaxx might consider is selling the made in USA pto shaft with the unit and offer the imported shaft as a discounted version.
Chris A. (verified owner) –
The MX-9900 has been a joy to work with. Easy set up, little to no vibration and the 9″ capacity has been a plus. Hardwood, softwood, does not make a difference. The hydraulic in feed has made it simple to use being the in feed is self regulating, load the branches and limbs in and move off for another load, no worry with stalling.
Best investment in power equipment I have ever made…………..