Morbark, LLC

- Model M18RX - Brush Chipper



While retaining an 18″ chipping capacity, the Beever M18RX Brush Chipper weighs in at less than 10,000 lbs. (GVWR) fully charged with fluids and winch package, eliminating the need for additional transport licensing requirements. Infeed is made with 7-gauge (5 mm), XF-100 sides and 3/8″ (10 mm) thick, XF-100 floor to increase material tensile strength with lighter weight components. Ideal for residential tree services, vegetation management, lot and land clearing, maintenance contractors and municipalities, this chipper combines Morbark strength in a more compact design. Like all Morbark equipment, the M18RX is a long-lasting, durable machine backed by a world-class parts and service support team.



Oversized perimeter opening with large throat opening, radius infeed walls and straight flow through infeed design increases efficiency while reducing infeed wear.


Pivot Assembly

Bearing-style yoke pivot assembly with TorqMax drive and Variable Force down pressure system increases down pressure efficiency by 25%.


Reversing Auto-feed

The reversing auto-feed system automatically stops forward feed and briefly backs materials away from the drum for optimum engine performance while chipping.


Separate Fluid Tanks

7-gauge split fuel and hydraulic reservoirs with shut-off valves reduce risks of vibration damage and cross-contamination while allowing for easy maintenance.


Chipping capacity: 18″

Height: 9’4″
Width: 7’8″
Length (Transport): 18’3″

Gross weight: 9,550 lbs.
Suspension: 10,000 lb. torsion

Infeed Opening: 65″ wide x 37 ½” high
Throat Opening: 21″ wide x 18 ¾” high

Drum: 37 3/8″ diameter x 23 ½” wide

Engine: CAT, Cummins or John Deere
Horsepower: 130–170 HP

Fuel capacity: 44 gallons
Hydraulic oil capacity: 41 gallons

Frame: 8.2 lb., 6″ channel

Tires: (2) 235/75×17 ½”

Hitch: 2 ½” Pintle

Equipment Highlights

Four dual-edged knife staggered-pocket drum with patented EZ Drum removable knife holders

Vortex chambered air impeller system and controllable air flow vents

Top 20 ½” wide horizontal feed wheel equipped with serrated teeth and knife bars

360° manual crank swivel discharge with adjustable height and chip deflectors

Live hydraulic system including: ball valve, pump, motor, and valve bank with additional pre-plumbed valve section for installation of an aftermarket winch package

4″ x 6″ tubular steel fixed-length drawbar and 3/8″ thick safety chains with clasp hooks

Enclosed engine with gauge panel, radiator fines screen and slide rails for belt adjustment

Morthane Paint System: A chemically cured, electrostatically applied urethane coating with high-gloss finish, built-in UV protection, chip and chemical resistance and corrosion protection


  • Variable speed flow control
  • Turnbuckle for discharge height adjustment
  • Discharge clean-out door on bottom
  • Winch package: heavy-duty, 5,000 lb. pull capacity with rope and 10′ chafe guard
  • Hydraulic front stabilizer
  • Custom paint and logo packages
  • Knife saver tool
  • Engine stop on infeed
  • Material pushing tool
  • Spanish and English safety decals

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