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Alexander Equipment Company - LisleMorbark, LLC

40/36 Whole Tree Drum Chipper

40/36 Whole Tree Drum Chipper

The Morbark 40/36 Whole Tree Drum Chipper is a compact, affordable, productive drum chipper designed with the biomass industry in mind. Equipped with the same internal drive perfected on Morbark horizontal grinders, along with an extra wide feed opening, the 40/36 aggressively feeds brushy tops and limbs, quickly and effortlessly filling a chip van to maximum legal load capacity. Morbark’s Advantage 3 Drum produces more consistent chips, while the heat-treated, AR-450 steel drum skin provides longer wear life for lower replacement costs and less downtime. The feed system is more efficient due to a staggered knife configuration and contains fewer moving parts, reducing maintenance. With low fuel consumption per ton produced, this unit is economical. At 8’6″ (2.59 m) wide this compact unit is easily transportable and requires no permits to move.

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Morbark Integrated Control Systems (MICS)

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


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


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

Infeed System

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

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40/36 Whole Tree Drum Chipper
Length NCL37'5", 11.4 m
Height NCL12'5", 3.78 m
Width NCL8'6", 2.59 m
Length NCL Track32'8", 9.95 m
Height NCL Track11’6", 3.5 m
Width NCL Track9'10", 2.99 m
Gross Weight NCL54,500 lb, 27,720 kg
Axle Weight NCL31,750 lb, 14,400 kg
Tongue Weight NCL22,750 lb, 10,320 kg
Gross Weight NCL Track56,750 lb, 25,740 kg
Horsepower800 HP, 596.6 kW
Fuel capacity (tank)300 gallons, 1,135 litres
Hydraulic oil capacity187 gallons, 708 litres
Chipping capacity23", 58.42 cm
Towing arrangementfifth wheel
Infeed opening40" x 39", 101.6 cm x 99.06 cm
Drum diameter36", 91.44 cm
Drum width43.5", 110.49 cm
Chipper knives(8) 11" x 7.31" x 0.75" thick, 27.94 cm x 18.57 cm x 1.9 cm
Counter knives(8) 11" x 6.375" x 0.5" thick, 27.94 cm x 16.19 cm x 1.27 cm
Drum speed968 RPM, 969 RPM
Feed driveHydraulic
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