50/48B Whole Tree Drum Chipper

The Morbark 50/48 whole tree wood chippers are the largest, most productive drum chippers on the market. Equipped with Morbark’s exclusive Advantage 3 Drum, the 50/48 creates more uniform chips while keeping operating and maintenance costs low. The reverse pivot yoke produces more down pressure than the conventional style yoke for aggressive feeding of a variety of material. The 50/48 comes equipped with the Morbark Integrated Control System, allowing for both onsite and remote diagnostic monitoring of hydraulic pressures, temperatures, feed rates and more to maximize performance.

Morbark Integrated Control Systems (MICS)

This ultimate diagnostic system monitors hydraulic pressures, temperatures, clutch systems and engine efficiency to
maximize performance.

Morbark Advantage 3 Drum

Advantage 3™ Drum

The Advantage 3™ drum creates more uniform chips and reduces operating and maintenance costs.

Hydraulic Stabilizers

With the optional rear stabilizers all four stabilizers provide a solid stance during chipping operations.

Infeed System

Aggressive live floor and large top feedwheel ensure positive feed of brushy tops and limbs.


Directional flow discharge chute is hydraulically adjustable by remote control for maximum chip loads.

Operator’s Cab Option

Cab hydraulically raises into operating position and lowers for transport and access.


Length (transport) NCL: 40’9″ (12.42 m)
Height NCL: 11’10” (3.61 m)
Width NCL: 10’2″ (3.1 m)

Length (transport) NCL Track: 36’4″ (11.07 m)
Height NCL Track: 11’11” (3.63 m)
Width NCL Track: 11’7″ (3.53 m)

Length (transport) WCL Track: 36’4″ (11.07 m)
Height WCL Track: 12’5″ (3.78 m)
Width WCL Track: 12′ (3.66 m)

Gross weight NCL: 68,000 lbs. (30,845 kg)
Axle weight NCL: 30,000 lbs. (13,607 kg)
Tongue weight NCL: 38,000 lbs. (17,263 kg)
Tandem-axle trailer NCL: 44,000 lbs. (19,960 kg) suspension

Gross weight NCL Track: 88,000 lbs. (39,920 kg)

Gross weight WCL Track: 104,000 lbs. (47,175 kg)

Engine: CAT
Horsepower: 1050 HP (783 kW)

Fuel capacity (tank): 400 gallons (1,514 litres)
Hydraulic oil capacity: 285 gallons (1,078 litres)

Brakes: air

Towing arrangement: fifth wheel

Dust suppression system

Hydraulically operated debris containment door

330L or 330EL Caterpillar undercarriage (optional)

Automatic reversing fan system

Rear hydraulic stabilizers

Light package

11 HP (8.2 kW) air compressor with lockable enclosure


Infeed System

Infeed opening 52″ x 45″ (132.08 cm x 114.3 cm)

Infeed System consists of one 34″ (86.36 cm) diameter top compression feed roll with internal drive and a 50″ (127 cm) wide x 14′ (4.27 m) long live floor equipped with four strands of WDH-120 chain in a staggered configuration

Chipper Assembly

Drum diameter: 48″ (121.92 cm)
Drum width: 55 ½” (140.97 cm)
Chipper knives:  (10) 11″ x 7 5/16″ x ¾” thick (27.94 cm x 18.57 cm x 1.9 cm)
Counter knives:  (10) 11″ x 6 3/8″ x ½” thick (27.94 cm x 16.19 cm x 1.27 cm)
Knives and Counter knives are Babbitt-style and made of A-8 modified steel
Drum speed: 945 RPM
Feed drive: Hydraulic

Discharge System

Straight discharge chute includes hydraulically operated chip deflect with vertical and horizontal adjustment, clean-out door, and an additional 18″ top section.


Wireless remote control with a 60′ (18.28 m) tethered remote back-up system for chipper operation. Functions include forward/reverse of feed works, up and down of top feed roll, operation of chip discharge chute and throttle.

Cab and Loader

Model 500 Hydraulic Knuckleboom Loader with 23′ (7 m) extended boom reach, turntable bearing with 280-degree swing, 442 grapple with 360-degree turn motor. Stationary, rising cab and console, complete with joystick controls for loader, Red Dot combination air conditioner/heater, cab-mounted MICS, engine gauge panel, emergency shut-down system, six-way adjustable swivel seat, color-tinted safety glass with steel guard.


  • ESPAR heating system for cold-weather start
  • MicroChipper configuration with chip accelerator and forestry grate
  • Top load discharge
Specifications may vary with equipment options.