2455 Stand-Alone Flail

Whether used alone or in combination with a Morbark whole tree chipper to create a total fiber utilization system, the 2455 Stand-Alone Flail is built for maximized output. With three top feed rollers mounted on yoke assemblies, two stationary bottom feed rollers, and a bark discharge conveyor that folds for transport, this machine has many features perfect for whole tree chipping. The enclosed weatherized operator’s cab and color-tinted safety glass helps protect the operator.

2455 Flail Operator Controls

Hydrostatic Controls

Flail drive is a closed loop hydraulic design with separate hydraulic systems to operate each flail drum. Each system is complete with electric tach and controls in operator’s cab.

2455 Flail Infeed

Spreader Infeed

This unique infeed system spreads multiple stems apart, which assists with more complete bark removal.

Optional Cab & Loader

The enclosed operator’s cab includes six-way adjustable seat, joystick controls, combination air conditioner/heater and emergency shut-down system.

2455 Flail Grapple

Optional Grapple

Mor-Lift Model 500 Knuckleboom Loader has 23′ reach, 270-degree  swing and 17,200 lb. lift at 10′. Mor-Lift Model 1000 and foot pedal swing for loader also available.

General (4-flail option)

Length: 48’8″ (14.83 m)
Height: 14’5″ (4.39 m)
Width: 11’5″ (3.48 m)

Gross weight (with loader): 97,340 lbs. (44,153 kg)
Rear axle weight: 52,160 lbs. (23,659 kg)
Tongue weight: 45,180 lbs. (20,493 kg)

Engine: CAT
Horsepower: 755 HP (563 kW)
Electric powered units also available

Fuel capacity (tank): 240 gallons (908 litres)
Hydraulic oil capacity (flail): 200 gallons (757 litres)
(feed system & loader): 300 gallons (1,135 litres)

11 HP (8.2 kW) air compressor with lockable enclosure

Radio and tethered remote control


Tires: 11Rx22.5×16-ply radial

Brakes: air

Tandem axle or tri-axle trailer: fifth wheel

Infeed System

Heavy-duty spreader feed system with 24″ x 55″ (60.96 cm x 139.7 cm) infeed opening, consisting of three top feed rolls with synchronized feed rates, mounted on yoke assemblies. The center yoke assembly contains the top flail drum, which hydraulically raises for various diameter wood. Pinch points are 85″ (215.9 cm) from the back yoke wheel to the center yoke wheel and 85″ (215.9 cm) from center to the front yoke wheel. There are two stationary hydraulically driven bottom feed rolls and a 40″ wide x 8′ (101.6 cm x 2.44 m) long outfeed conveyor.


MICS (Morbark Integrated Control System) monitors hydraulic pressures, temperatures,  engine parameters, controls auto-reversing fan functions, feed functions and allows utilization of remote diagnostic system.


Discharge system consisting of 72″ wide x 23′ (1.83 m x 7.01 m) long telescoping drag chain conveyor with  hydraulic drive. Debris is bottom discharged into dual 12″ (30.48 cm) diameter twig augers.


  • Model 500 knuckleboom loader with 442 log grapple, 360 degree Rotobec turn motor and rotating operator’s cab in lieu of remote control
  • Additional third flail drum
  • Push ram discharge in lieu of standard discharge
  • Foot pedal loader swing for knuckleboom loader
  • ESPAR heating system for dual engine option
Specifications may vary with equipment options.