6400XT Wood Hog Horizontal Grinder

The newest model in Morbark’s next-generation platform of horizontal grinders, the 6400XT Wood Hog includes many feature improvements first introduced in the smaller 3400XT, focusing on production, operator-friendliness, ease of maintenance and transportability. The infeed bed is 24 inches (60.96 cm) longer than previous Morbark grinders in the 1,000-plus horsepower range and has sloped sides. This configuration improves operator sight lines for more efficient loading of material. Standard on the 6400XT is a removable infeed chain return floor, which allows excess material to fall away to minimize the wear on the floor, bed chain and inserts, particularly useful in land-clearing or other applications with dirty material.

6400XT Wood Hog MICS system

Morbark Integrated Control Systems (MICS)

Automatically adjusts feed rates and monitors pressures and feed wheel position to maximize production and engine efficiency.

6400XT Wood Hog Maintenance Platform

Extended Maintenance Platform

The area between the hood and the engine has been reconfigured to provides an additional 31.5″ (80 cm) of working space for better access for maintenance and changing screens.

6400XT Wood Hog Sloped Infeed Sides

Sloped Infeed Sides

Sloped infeed sides and an additonal 24″ (60.96 cm) infeed length gives the operator improved visibililty and loading efficiency.

4 Element Torque Limiter

External Adjustable Break-away Torque Limiter

Flexible, easily adjustable torque limiter helps protect the driveline and hammermill from damage.


Length: 44’/13.14 m
Height: 11’10″/3.61 m
Width: 11’5½”/3.49 m

Weight (approx): 96,500 lb/43,772 kg

Engine: CAT
Horsepower: 1,050 to 1,200 HP/ 783 to 895 kW

Fuel capacity (tank): 365 gallons/1,382.68 L
Hydraulic oil capacity: 250 gallons/946.35 L

Infeed opening: 58″x 48″/147.32 cm x 121.92 cm
Screen Area: 5,406 sq in/ 34,877 sq cm

Tracks: 325L Caterpillar Undercarriage


Variable speed infeed system consists of one 40″ (101.6 cm) diameter top compression feed roll with internal drive and a 16’6″ long x 60 3/8″ (5 m x 153.3 cm) wide live floor equipped with four strands of WDH-120 chain in a staggered configuration

42″ x 61 3/8″ (106.7 cm x 155.9 cm) hammermill system constructed of heavy-duty 28″ (71.1 cm) diameter rotor, (15) 1″ (2.86 cm) thick laser-cut rotor plates to ensure precision and enforce steel strength. The plates are keyed on a 8 3/8″ (21.3 cm) diameter shaft with (2) 5 3/16″ (13.5 cm) bearings on both ends of the rotor and eight 3″ (7.6 cm) hammer retaining rods. Hammermill pattern has (18), 2 ¼” (5.7 cm) balanced forged heavy-duty hammers, (18) 3 7/16″ (8.7 cm) wide double-edged replaceable inserts and 18 rakers

Hydraulic hinged and locking door allows quick and easy access for changing grates

Independent hammermill drive tensioning system for ease of adjustment

Removable infeed chain return floor

Automatic reversing fan and dust suppression systems

Hydraulically operated debris containment door

Discharge system consists of a hydraulically driven, horizontal 48″ x 23′ (121.9 cm x 7 m) aggregate belt conveyor discharging onto a 40″ (91.44  cm) wide x 29′ (8.8 m) long discharge stacking conveyor with hydraulic fold for transport

Remote control with tethered back-up system

Magnetized end pulley with collecting slide tray for ferrous metal removal

11-HP (8.2 kW) air compressor with lockable enclosure

PT Tech HPTO21 hydraulic clutch

Hydraulic rod puller

Specifications may vary with equipment options.

The Morbark Wearwolf™ Insert rips through palm, hardwood, frozen and soft woods, anything you can feed it.

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