3800XL Wood Hog Horizontal Grinder

We’ve designed the Morbark 3800XL Wood Hog to be the best horizontal grinder on the market. A larger, more aggressive hammermill and independent drive motors on the feed-wheel and belt-chain result in a continuous feed with higher production, greater fuel efficiency, and a more consistent end product. The 3800XL Wood Hog will dramatically increase your production capacity and operating efficiency.

MICS System 2017

Morbark Integrated Control Systems (MICS)

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


Laser-cut upturn rotor, factory-balanced with T-1 hammers, offers unsurpassed durability and smooth operation.

3800XL Infeed

Feed System

Internal planetary drive with no chains and sprockets means lower maintenance, more torque and better durability.

Externally Adjustable Break-Away Torque Limiter Optional

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


Length (transport) wheeled: 38’8″ (11.78 m)
Length (operating) wheeled: 58’5″ (17.88 m)
Height wheeled: 13’2″ (4 m)
Height (operating) wheeled: 17′ (5.18 m)
Width wheeled: 10’8″ (3.25 m)

Length (transport) tracked: 38’2″ (11.6 m)
Length (operating) tracked: 58’5″ (17.8 m)
Height tracked: 12′ (3.66 m)
Height (operating) tracked: 16’4″ (4.79 m)
Width tracked: 11’5″ (3.48 m)

Gross weight wheeled: 71,540 lbs. (32,450 kg)
Axle weight: 47,240 lbs. (24,430 kg)
Tongue weight: 24,300 lbs. (11,025 kg)

Gross weight tracked: 80,120 lbs. (36,340 kg)

Engine: CAT
Horsepower: 755 HP to 875 HP (563 kW to 652 kW)

Fuel capacity (tank): 280 gallons (1,059 litres)
Hydraulic oil capacity: 187 gallons (708 litres)

Screen Area: 4,340 sq in (28,000 sq cm)

Brakes: air

Towing arrangement: fifth wheel

Dust suppression system

Hydraulically operated debris containment door

Remote control with tethered back-up system

Automatic reversing fan system

Externally adjustable break-away torque limiter

11 HP (8.2 kW) air compressor with lockable enclosure

Infeed System

Infeed opening: 59 ¾” x 40″ (151.76 cm x 96.52 cm)

Variable speed infeed system consists of one 34″ (86.36 cm) diameter top compression feed roll with internal drive and a 16′ long x 59 ¾” (4.88 m x 151.8 cm) wide live floor equipped with four strands of WDH-120 chain in a staggered configuration with direct drive.

Hammermill and Grates

32″ x 60 3/8″ (81.28 cm x 153 cm) hammermill system constructed of heavy-duty 20″ (50.8 cm) diameter rotor; (16) 1-1/4″ (3.17 cm) thick, two-piece laser-cut rotor plates to ensure precision and enforce steel strength. The plates are keyed on a 7″ (17.78 cm) diameter shaft with 4-7/16″ (11.27 cm) bearings on both ends of the rotor and eight 2-1/4″ (5.7 cm) hammer retaining rods. Hammermill pattern has (18) 2″ (5.08 cm) balanced forged heavy-duty hammers, (18) 3-1/16″ (7.78 cm) wide, double-edged replaceable inserts and 18 rakers.

Discharge System

Discharge system consists of a hydraulically driven, horizontal 48″ x 17’9″ (121.92 cm x 5.41 m) long aggregate belt conveyor discharging onto a 36″ wide x 26’10” (91.44 cm x 7.9 m) long stacking conveyor with hydraulic fold for transport.


  • Variety of grates sizes available
  • Hydraulic rod puller
  • 12-or 16-knife chipper drum assembly
  • CAT 320L undercarriage
Specifications may vary with equipment options.