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WoodMaxx MX-9900
WoodMaxx MX-9900
9" PTO Wood Chipper With Hydrostatic Infeed
Made in the USA
$5,390.00 + FREE Premium PTO Shaft Upgrade


Product Code: MX-9900TEST

Description Reviews Warranty Information
=WoodMaxx MX-9900 Wood Chipper with Hydrostatic Infeed
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.
- Proudly Made in the USA!
- USA and International Patents, additional Patents Pending
- 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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 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.
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 to 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.
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.
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.
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.
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.
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.
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.
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.
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.
MX-9900... 1000lbs of American made steel!
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.
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.
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.
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.
The WoodMaxx MX-9900 wood chipper includes our Premium PTO shaft that retails for $250 if purchased separately.
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.
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.
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.
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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