The HOC WM8M mechanical auto-feed wood 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 rigorous use. Dual infeed rollers grab and pull material into the chipper head using a sturdy belt driven gear box and drive axle system. High quality (A8 tool steel) made in the U.S.A. chipper knives are standard equipment on all WM-series wood chippers.
BELT DRIVEN GEAR BOX AND DRIVE AXLE SYSTEM
The in-feed system on the WM-8M utilizes a belt driven oil bath heavy duty gear box that increases torque and transfers power to the upper feed roller through an extreme duty drive axle. For long life, the drive axle is machined splined (similar to the PTO spline of your tractor), and the U-joints are protected from debris by a rubber boot. The clutch mechanism is precisely machined from solid steel to ensure proper function. This in-feed system will feed material at a rate of 58 ft./min.
WIDE FOOTPRINT SKID TYPE SUPPORT BASE
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.
ADJUSTABLE 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. HOC PTO wood chippers are able to accommodate tractors that have a PTO height from 18" to 30" high.
HIGH FLOW FLYWHEEL CHAMBER VENTILATION
HOC WM-series wood chipper attachments 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.
HEAVY DUTY CAST STEEL BEARING HOUSINGS
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 HOC chipper.
FULLY ADJUSTABLE IN-FEED ROLLER TENSION SPRINGS
The HOC 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 165 lbs. of down pressure. This allows the teeth on the roller to dig into the branches and ensure a smooth entry into the chipper head.
MAIN SHAFT SUPPORTED BY 3 BEARINGS
The 2" main shaft on the WM-series PTO wood chippers 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.
WM-8M... 950lbs (shipping) Steel crate dimentions are L=46" x W=36" x H=48"
More weight = more steel
More strength and stability... period.
8MM THICK FLYWHEEL HOUSING
WM-series 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 1/4" steel.
EASY KNIFE ACCESS PANELS
HOC 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 infeed bin to hold the head of the bolt, while someone else turns the nut from the backside of the flywheel.
ADJUSTABLE BED [ ANVIL ] KNIFE
The 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.
HEAVY DUTY 5/8" COGGED DRIVE V-BELTS (STANDARD BX-SERIES)
HOC 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!
SAFETY AUTO-FEED STOP BAR
Safety is paramount on HOC equipment. Located on the top of the in-feed bin, the 8" PTO chipper utilizes an easy to activate 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. This safety bar can be actuated and left in the off position, hands free, so that the operator can use both hands to clear the in-feed bin. This feature is safer because it allows the user to start the chipper without the feed rollers turning. Other chippers require a hand on the safety bar to keep the feed rollers in the off position.
HANDY FEED ROLLER ASSIST HANDLE LOCATED ON TOP OF MACHINE
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.
HORIZONTAL INFEED HOPPER
The in-feed hopper on the WM-series wood chippers is horizontal and approximately table height for easy material loading.
RUST RESISTANT POWDER COAT
The powder coat finish is baked on at 450 degrees, and is thicker and more durable than ordinary paint.
CLEAR VINYL BAFFLE
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.
HOC wood chippers include a standard PTO shaft.
MACHINE 90% ASSEMBLED ON DELIVERY
HOC 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 HOC chippers are given a comprehensive 22 point pre-inspection.
WM8M 8" PTO Wood Chipper - with Auto Infeed
- Strength in design, CNC plasma cut structural plate steel
- 19 hp. min. required
- 3 pt. hitch mount- fits category 1
- 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
- Mechanical gear driven in-feed system
- Infeed rate 58 ft. /min.
- Hardened 6.25" dia. chisel type in-feed roller
- 360 Degree swivel discharge chute
- High flow chamber ventilation
- 2" diameter main shaft
- 3-Heavy duty cast steel main shaft bearings
- Adjustable infeed roller down pressure
- Weight 950 lbs. (shipping) Steel crate L=46" x W=36" x H=47"
- 8mm thick steel fly wheel housing
- Easy access fly wheel knife panel
- Adjustable bed knife (to achieve proper knife gap)
- 5 Heavy duty cogged drive belts
- Safety stop bar
- 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 Premium shaft available)
- 90% assembled upon delivery