**We accept US funds only -
Thank you!

Credit Cards

Volusion SSL Seal

  Home > Chippers >

  WoodMaxx 8" PTO Wood Chipper - with hydraulic in-feed 2,799.00

Alternative Views:

WoodMaxx WM-8H

ONLY $2,799.00






Availability: Usually Ships in 3 to 5 Business Days
Product Code: WM-8H



Replacement Parts*:
Complete Replacement Kit(3Piece USA Knife Set, 8 Holo-Krome Bolts, 5 Cogged Belts, Hydraulic Filter) [Add $282.50]
USA Made 2 Piece Reversible Flywheel Knife Set [Add $155.00]
No Extras

PTO Shaft*:
Standard PTO Shaft (Imported) - No Extra Charge
Premium USA Made PTO Shaft (NOT for Kubota BX tractors) [Add $150.00]

Description Video Warranty Information





The WoodMaxx™ WM-8H hydraulic auto-feed chipper is a robust self-feeding PTO driven wood chipper attachment that mounts to the 3 point hitch of your tractor. This PTO wood chipper is compact, yet built to withstand commercial use. Dual powered in-feed rollers grab and pull material into the chipper head using two powerful hydraulic motors. These motors are powered by the chippers’ self-contained hydraulic pump and tank. High quality made in the USA (A8 tool steel) knives are standard equipment on all WM-series wood chippers. The WoodMaxx™ WM-series chippers are so unique and innovative that they are now patent pending. Attempts have been made to copy this machine, but there is only one WoodMaxx™! Check out these features:

- USA and International Patents Pending

- Strength in design, CNC plasma cut structural plate steel

- 19 hp. min. required

- 3 pt. hitch mount- fits category 1 or category 2 (also cat-1 quick hitch)

- 8” x 8” In-Feed opening

- 200 lb. 24” Diameter Flywheel (dynamically balanced)

- 2-Reversible Made in the USA fly wheel knives, 1 bed knife (anvil)

- 1120 RPM Flywheel speed

- NEW Tachometer/ Hour meter (to ensure proper flywheel speed)
- Hydraulic powered in-feed system w/dual counter rotating motors

- Self-contained hydraulic system (no hydraulics required from tractor)

- Variable in-feed speed 0-75 ft. /min.

- Nylon protected hydraulic hose wrap

- JIC standard hose fittings

- Hardened 6.25” dia. chisel type in-feed roller

- Quick hitch compatible (category 1 quick hitch only)

- 360 Degree swivel discharge chute

- Adjustable base legs w/ skid shoe type base

- Automatic hydro pump belt tensioner

- High flow chamber ventilation

- 2” diameter main shaft

- 3-Heavy duty cast steel main shaft bearings

- Adjustable in-feed roller down pressure

- Weight 990 lbs. (shipping)

- 8mm thick steel fly wheel housing

- Easy access fly wheel knife panels

- Adjustable bed knife (to achieve proper knife gap)

- 5 Heavy duty cogged drive belts

- Safety stop bar w/reverse

- Horizontal “table height” in-feed hopper for easy loading

- Baked on powder coat finish

- Clear vinyl chip baffle

- PTO shaft included (shear bolt protected) (optional made in USA shaft)

- Colors available; Yellow, Orange, or Green/Yellow combination.

- 3 yr. parts warranty

- 90% assembled upon delivery

- FREE shipping USA & Canada (lower 48 only, AK and HI extra)

- Experience (thousands of WoodMaxx™ machines around the world)

- Please read below for expanded descriptions of the features.



WoodMaxx™ WM-series 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. WM-series chippers are loaded with features typically found on much larger commercial machines that are much more expensive. The strength of our machines start with using heavy formed Q-235 (American standard A-36) structural steel plate; the strongest plate steel available. Each piece is CNC plasma cut, and meticulously welded. WoodMaxx™ WM-series chipper exclusive structural design includes a 2” diameter main shaft that passes through the flywheel housing and is supported by 3 bearings: 1 pillow block and 2 flange bearings. This feature, combined with the 2” shaft, allows the flywheel to run true and ads a great deal of strength. This design sets WoodMaxx™ chippers far apart from the competition, and it is a design feature you should not overlook when shopping for a chipper. CLICK HERE FOR BEARING TECH DRAWING


The WoodMaxx™ WM-8H requires a tractor with a category 1 or 2 three point hitch and at least 19 hp. at the PTO. Of course chipping capacity is directly related to horse power and torque, therefore with 19 hp. you can expect to chip 4” hard and 6” soft material and with 50 hp. you can expect to chip any material up to 8” in diameter with no trouble. In testing a 30 hp. tractor gave excellent work to fuel consumption results. Tractors with more than 50 hp. will not over power or damage the wood chipper since it is shear bolt protected, but will simply consume more fuel to accomplish the same results.


WoodMaxx WM-series wood chippers offer a larger 8”x 8” in-feed to easily accept those crooked branches. Other 8” chippers open 8” wide, but only 4-1/2” high. CLICK HERE FOR A PICTURE


WoodMaxx™ WM-series chippers use a 24" dynamically computer balanced 200lbs flywheel to run smooth and deliver the energy to easily chip all types of material. Competitors use a wide range of flywheel weights, but through thorough testing and experimentation, WoodMaxx™ has discovered that the 200lbs flywheel is ideal for this size of wood chipper.


All WoodMaxx™ WM-series wood chippers are equipped with made in USA knives and made in USA Holo-Krome class 12.9 knife bolts. Designed for extreme duty – there is no better material that can be used for superior life and performance than our heat treated, through hardened, high carbon, high chromium, A-8 tool steel knives. .


WoodMaxx™ WM-series wood chippers come standard with reversible dual edge knives installed. This means you get twice the work out of one set of knives! These knives are bolted into a milled pocket in the flywheel, incorporating a new flywheel pocket design developed at WoodMaxx™. Unlike most other reversible knives, which are only held on by bolts, the flywheel on the WM-series chipper was redesigned to actually help to hold the knives on. This eliminates knife and bolt breakage that can be found on other dual edge knife systems. And, as always, these knives are made right in the USA of hardened, high carbon A-8 tool steel, right here in upstate New York.


WoodMaxx™ WM-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. CLICK HERE FOR A PICTURE


WoodMaxx™ WM-8H chippers are complete with a self-contained hydraulic pump and a 38l/7 gallon reservoir tank to power the 2 in-feed motors. Hydraulics are not required from your tractor. Hydraulic motors are a standard SAE 2 hole “A” mount. What does this mean to you? Down the road if there is a need to replace the motor, it can be found just about anywhere. Please note, you will need at least 19 horsepower at the PTO to operate this machine. CLICK HERE FOR A PICTURE


The WoodMaxx™ WM-8H wood chipper utilizes JIC (joint industrial council) hose fittings and hoses 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. CLICK HERE FOR A PICTURE


The hydraulic hose configuration for the WM-8H has been streamlined to eliminate the possibility of snagging a hose and offers a sleek new look. CLICK HERE FOR A PICTURE


Along with the new hose configuration, the WM-8H now includes the additional protection of nylon hydraulic hose wrap for long life. This hose wrap reduces chaffing and protects the hoses from environmental damage. CLICK HERE FOR A PICTURE


The addition of this valve allows for very precise in-feed roller speed without causing back pressure on the hydraulic pump. This allows the user to regulate the speed of the in-feed rollers to exactly match their tractors capabilities while increasing the life of the hydraulic pump. CLICK HERE FOR A PICTURE


Variable speed (10-75ft. /min) aggressive dual counter-rotating hydraulic powered in-feed rollers work together to pull material into the chipper head. This feature allows the user to slow the in-feed speed down to accept large material. CLICK HERE FOR A PICTURE



Another WoodMaxx™ exclusive! Designed by WoodMaxx , copied by others. We all know what happens to the branches when they reach the flywheel, but getting the material to pull into the chippers quickly and effectively is the trick. Many factors come into play when designing an effective in-feed roller: the overall diameter, blade spacing, tooth angle, type of steel, hardness, down pressure and speed. After countless hours of R&D on the in-feed system, we have developed a large diameter (6.25”) in-feed roller that easily climbs up and grabs the branches to bite in and efficiently pull the material into the flywheel at up to 75 ft./min. 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. We equate this to the small wheels of a shopping cart stopping when it contacts a small stone in the parking lot. WoodMaxx™ auto feed chippers utilize in-feed rollers with high carbon steel chisel teeth. This type of in-feed roller is found on larger, much more expensive machines.

We have also spaced the teeth out to prevent material like leaves and bark from getting impacted between the teeth. This allows the roller to self-clean, and also allows the 165lbs of down pressure to focus on fewer teeth which increases the bite. These rollers, along with the high tension springs aggressively bite into any type of material. After welding, these rollers are induction hardened to ensure that the teeth stay sharp for many years to come. The advantage of this type of roller is that is aggressively grabs any size limb up to 8” with or without leaves. Small, vine type material as well as long or short needle pine is no problem for the WoodMaxx™ WM series chipper. Vines, leaves, and small branches won’t wrap around the roller as they would on other chippers. The advanced design of our in-feed rollers is a feature that should not be overlooked when shopping for a wood chipper. Our in-feed roller designs are so effective and unique that we now have patents pending. CLICK HERE FOR A PICTURE


All WoodMaxx™ WM-series chippers are category 1 quick hitch compatible. WoodMaxx™ is the only PTO chipper that works with quick hitch (**John Deere I-match requires a special top link that we make for this purpose, please call to specify if you need this). Save time by never leaving the seat of your tractor to link up with the WM-series wood chipper. Attaching the chipper to your quick hitch takes only seconds. Please note, you'll need the USA PTO shaft or a longer imported PTO shaft if you have a quick hitch (contact us for more info). Check out our video tab to see the quick hitch in action! No quick hitch? No problem. The chipper will easily attach to a standard 3pt hitch, just back in and insert the pins. No need to force the draw arms of your tractor around the draw pins (as with many other implements). CLICK HERE FOR A PICTURE


360 degrees of rotation and 2 finger operation. We have incorporated a convenient handle that effortlessly allows you to swivel the discharge chute so that you can direct the chips into the back of a truck or trailer 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. CLICK HERE FOR A PICTURE CLICK HERE FOR A VIDEO


Because of its robust weight and to prevent the machine from sinking into the soft ground during operation, the new WM-8H offers a wide footprint skid type support base. This base is angle upward on the end to prevent digging into the ground while transporting. CLICK HERE FOR PICTURE


The automatic belt tensioner on the WM-8H hydraulic pump drive belt keeps consistent pressure on the belt. If the drive belt is too tight then excessive bearing and or pump failure is likely, too loose and the belt will slip. This feature eliminates the need to adjust the belt, ensures that proper tension is achieved, and increases the longevity of the pump and bearings. Also saves you the hassle of constant adjustment. CLICK HERE FOR A PICTURE


You asked for it and we delivered! In 2012 WoodMaxx™ developed the first adjustable chipper base legs. These adjustable legs will help accommodate a larger variety of tractors. This innovation allows you to more easily meet the required PTO shaft angle (less than 15 degrees) on larger tractors. Simply insert the adjustable legs, and then slide the pin into the hole for your required leg height. WoodMaxx™ wood chippers are able to accommodate tractors that have a PTO height from 18” to 30” high. CLICK HERE FOR A PICTURE.


WoodMaxx™ WM-series PTO 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 chips 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. Other machines have tried to copy this feature, but have not achieved the same results! CLICK HERE FOR A PICTURE


Three heavy duty cast steel bearings support the main shaft, which passes through the flywheel housing, and is supported on either side by flange bearings. This heavy duty, shock resistant cast steel bearings are much more durable than cast iron—a unique feature of the WoodMaxx™ chipper. CLICK HERE FOR A PICTURE


The 2” main shaft on the WM-series wood chipper passes through the flywheel housing and is supported by 1 pillow block and 2 flange bearings. This feature, combined with the 2” shaft, allows the flywheel to run truer, and adds a great deal of strength. Other chippers use a 1-3/4” shaft, 2 pillow block bearings, and the flywheel is cantilevered beyond the bearing. With this setup, there is a possibility of breaking a bearing housing the machine jams. CLICK HERE FOR A PICTURE.


The WoodMaxx™ WM-series chipper utilizes high tension springs in conjunction with a unique adjustment mechanism that offers a full range of variable down pressure, since all branches are different – some soft and some hard. This feature allows the user to increase to decrease the upper roller down pressure to suit the situation. Crank up the tension to achieve up to 165lbs of down pressure. This allows the teeth on the roller to dig into the branches and ensure a smooth entry into the chipper head. CLICK HERE FOR A PICTURE


WM-8H…990lbs (shipping)

More weight = more steel

More strength and stability…period.


WoodMaxx WM-series wood chippers use heavy gauge 8MM thick Q235 (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. Other chippers use only ¼” steel. CLICK HERE FOR A PICTURE


WoodMaxx™ WM-series chipper knives can be changed from the side of the machine by one person in as little as 10 minutes. Other chippers require you to reach into the in-feed bin to hold the head of the bolt, while someone else turns the nut from the backside of the flywheel. CLICK HERE FOR A PICTURE


WoodMaxx™ WM-series wood chippers are equipped with an adjustable bed knife to ensure that the proper knife gap is achieved. This feature allows the user to adjust the distance between the flywheel knife and the bed knife so that the required distance is maintained after knife sharpening. Proper gap is important so that even the smallest material is chipped as it passes through the chipper.


WoodMaxx™ WM-series chippers are equipped with extreme duty 5/8” wide cogged drive v-belts. 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 BX size allows you to purchase replacement v-belts at any auto parts store. Other chippers use 15mm belts—try to find those in the USA! CLICK HERE FOR A PICTURE


Safety is paramount on WoodMaxx™ chippers. Located on the top of the in-feed bin, the WM-8H utilizes an easy to activate hydraulic auto-feed stop safety bar to disengage the in-feed rollers in case of an emergency, or to clear the in-feed bin if necessary. By simply pulling down on the bar, the user can stop and even reverses the direction of the in-feed rollers. CLICK HERE FOR A PICTURE


This feature allows the user to access the handle from either side of the machine. The center lift point allows the WM-series chipper to use stronger tension springs, increasing the in-feed ability. . CLICK HERE FOR A PICTURE


The in-feed hopper on the WM-series wood chippers is horizontal and approximately table height for easy material loading.


The powder coat finish is baked on at 450 degrees, and is thicker and more durable than ordinary paint.


The clear vinyl baffle feature protects the user from chip blow-back, while allowing the user to see what is going on in the hopper. CLICK HERE FOR A PICTURE


This robust chipper comes with an equally robust 3 year warranty. Our service department also stocks a full line of replacement parts.


WoodMaxx™ wood chippers include a standard imported PTO shaft, but for an additional $150.00 up-charge we do offer a very high quality Made in the USA shaft. The USA shaft retails for $250 if purchased separately. NOTE: USA shaft does not work on Kubota BX-series tractors. Have a quick hitch? The USA PTO shaft is compatible, or ask about or longer imported PTO shaft


WoodMaxx™ chippers come shipped to you in a steel crate and are almost completely assembled. Simply attach the in-feed bin, discharge chute, PTO shaft (included), and attach to your tractor. All WoodMaxx™ chippers are given a comprehensive 22 point inspection, and are serviced prior to leaving our warehouse. The drive belts have been aligned and tightened, knives have been installed, adjusted, and torqued down, and bearings have been greased. These and other steps performed here greatly reduce assembly time on your end. Just follow the illustrated, American written, user friendly assembly manual (and watch the video), and you will be up and running in about 2 hours. CLICK HERE TO WATCH ASSEMBLY VIDEO. CLICK HERE TO READ MANUAL


WoodMaxx™ 3-pt. hitch mounted wood chippers are extremely robust, and can handle heavy use. Designed 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, 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.


Do not be fooled by imitators. WoodMaxx™ is the original chipper of this design. We have spent hundreds of hours designing, and testing to create this machine. WoodMaxx™ offers the highest level of quality and innovation with many exclusive features not found anywhere else. Cheap knock-offs do not have the quality workmanship and history of satisfied customers that WoodMaxx™ has. Just compare our reviews to those of the competitors, and you can see for yourself!


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. We keep a full line of replacement parts, and guarantee that we can ship any part within 24 hours.

Average Customer Review: 5 of 5 Total Reviews: 117 Write a review.

  2 of 2 people found the following review helpful:
A product that backs up the promises! July 15, 2016
Reviewer: James from Illinois  

This is a happy letter!!

I needed a replacement chipper for my new larger tractor (40hp) and went on line to do the research. After learning how Essential a hydraulic system was to the right performance I dug into the various manufactures. WOODMAXX  jumped out as a key candidate, with several models fitting my need. I choose a WM-8H and placed the order. Mike found one in short order and fired it off toward Chicago. After a small shipping delay, I dug into assembly. It now has 10 to 12 hour of operation and is the perfect choice.! These have been great people to work with and a product that backs up the promises. My best to all.

- James

Was this review helpful to you?

  5 of 5 people found the following review helpful:
It truly is an effective workhorse! July 12, 2016
Reviewer: Jim D. from Texas  
(A few years back) a continuing severe drought in Texas caused many trees to die. Burning them was a fire hazard.  Therefore, I was in need of a heavy-duty chipper to clear deadwood on the ranch including branches and small trunks of the infamous bois d’arc tree. Bois d’arc is a dense, hard wood that old-time Texans used for fence posts and house foundations because it would literally outlast multiple generations. (A Wikipedia entry for this tree is too kind about this thorn laden, tire puncturing, glove shredding, chainsaw dulling scourge whose worthless softball-size fruit is eaten by horses and thus the name “horse apples” - trust me on those assessments.)

In the search for a chipper that would meet this challenge to be driven by a 32 hp (at the pto) diesel tractor, I came across the WoodMaxx website and was impressed by the videos showing a chipper in operation. It rapidly dispatched the softwood conifers of the northern climes, but I had concerns about its ability to chew up bois d’arc trees.

Though I had reservations about its ability with bois d’arc wood, I ordered a WoodMaxx model WM-8H. When it arrived, I was immediately impressed with the careful way it was packed and protected with a surrounding steel framework.  That same careful attention to detail existed in the machine itself. It was obviously a solidly built and substantial piece of equipment.  

I have been using it for just over a year now with absolutely no problems. I continue to be thoroughly impressed with its durability as well as the engineering that went into its design.  The hydraulic feed and the steerable exhaust chute (downwind is only a half turn or less away) have proven to be “must-have” features.  The controls and safety systems are conveniently placed and reliably work as intended. Wear points are easy to get to for lubricating, and the reversible blades are readily accessible for replacement or switching sides. (In a year of fall and springtime use, I have only needed to rotate the cutting sides on the set of blades that originally came on the machine.)  The WM-8H has proven to be equally adept at chipping very small branches as well as bigger branches and trunks in the 6 to 8-inch range. Any brush or wood that will fit through the feed chute opening is grabbed by the hydraulic driven feed rollers, fed to the blades, and rapidly converted to small chips.  

In summary, the operative words that apply to the WM-8H are solid, durable, well designed, reliable, versatile, easy to operate, and a breeze to maintain. It truly is an effective workhorse that provides a lot of bang for the buck

Was this review helpful to you?

  0 of 0 people found the following review helpful:
Look no farther than the WOODMAXX! July 6, 2016
Reviewer: Greg Dittenhafer from Pennsylvania  
If you are in the market for a great wood chipper look no farther than the WOODMAXX.   From my initial telephone call and the many that followed the staff at Woodmaxx went above and beyond to assure my questions were answered and confirmed with assurance.  I purchased the WM-8H model and I'm so impressed that writing this review is the least I could do.

The workmanship that went into this machine is impressive.  The hydraulics seals the deal.  Great job Woodmaxx and thumbs up to your staff.

Greg Dittenhafer

Was this review helpful to you?

  3 of 3 people found the following review helpful:
An outstanding PTO chipper! June 8, 2016
Reviewer: Steve from Colorado Springs  
The Woodmaxx WM-8H is an outstanding PTO chipper. I purchased mine in November to start cleaning up 5 acres of trees that burned in the (previous June's) forest fire. Once ordered, a freight truck delivered it about a week and a half later at the street and I used a tractor to move it inside a neighbors garage and assemble it.
I use it with my Kuboda L3800 which has a PTO output of 30HP. This seems to be a good match for the chipper as it has plenty of power, more would be better, but I think you could even run it with 25HP or even less just depending on what you are chipping and how fast you want to run it through the machine. The wood I am chipping is charred ponderosa pine, the fire definitely made the wood harder and more brittle and at times the chipper feed needs to be interrupted so that the flywheel will come back up to speed. I’ve noticed when chipping green ponderosa pine it feeds and chips much easier. Hopefully you don’t have burned trees to chip, but if you do, this machine will do the job. Be careful to inspect it as you are chipping because the feed mechanism etc. gets a lot of strong jerky movement and bolts loosen up and in my case a few times fall out and have to be replaced. Everything on the machine I have worked on so far is metric and so finding bolts and nuts is a little harder but Lowes and Ace here in Colorado Springs carry metric nuts and bolts and so far I’ve been able to get up and running again quickly as a result. If you are using it more lightly than I am you may not experience this, I have about 75 hours on the machine so far and there are only 93 hours on my tractor so it’s by far the most used implement I have at this point, I hope to finish working on the trees soon but I’m only about 40% through them and I don’t anticipate the WM-8H will have any trouble getting through the rest.

Was this review helpful to you?

  1 of 1 people found the following review helpful:
very happy! June 1, 2016
Reviewer: Kent C. from Wyoming  
I have enjoyed using my Woodmaxx chipper. We had a huge spring storm that produced a mountain of branches. The Woodmaxx chipper quickly reduces the tangled mess into a neat pile of chips. I like the sturdy construction and the effective self feeder that makes the unit easy to use. I have pushed this chipper to its limits running heavy Elm branches through one after another, it chews them up without any trouble.

I was very happy with the ease of purchasing and the shipping to my door was excellent.

Was this review helpful to you?

View All Customer Reviews

Browse for more products in the same category as this item:

Chippers > Hydraulic Auto-Feed (WM-8H) PTO Wood Chipper
WM-8H Wood Chipper