MXD86 Track Stump Grinder

MXD86 Track Stump Grinder

The powerful MXD86 Track Stump Grinder is equipped with an expandable rubber track undercarriage with 4.4 PSI ground pressure and an 86″/218.44 cm boom arc for less positioning at the stump. The MXD86 Track is outfitted with Long Boom Technology, which maintains full boom arc swing regardless of cutting depth; multi-function wireless remote control with 50’/15 m tethered back-up system; and a fully enclosed, liquid-cooled, four-cylinder diesel engine. Standard features include a 5.4-cubic-inch hydrostatic motor; and heavy-duty tubular steel frame. Options include hydraulic back-fill blade and fold-away boom-mounted deflect curtain assembly.

  • Long Boom Technology – Knuckled boom allows maximum swing above and below grade to access hard-to-reach areas while maintaining full boom arc swing regardless of cutting depth.
  • Hydrostatic Drive – Hydrostatic primary drive with belt final drive provides efficient (90%) power transfer between drive and cutting system with minimal moving components.
  • Boom Pivot Assembly – Heavy-duty boom pivot significantly reduces wear in critical area of the stump grinder to provide years of trouble-free service and allows for greater boom arm swing radius.
  • Expandable Track – Nachi Rubber Track Undercarriage with 4.4 PSI ground pressure is 72″/182.88 cm long x 9″/22.86 cm wide, turf-friendly and hydraulically expandable from 35″/88.9 cm wide to 47″/119.38 cm wide with dual cylinders.
  • Wireless Remote – Multi-function remote with 50’/15 m tethered back‑up provides optimal control while allowing the operator to stay clear of debris and get the best vantage point for operation.


Length: 13’5″/4.09 m
Width: 47″/119.38 cm (Tracks expanded)
Height: 5’8.33″/1.74 m
Weight:  5,760 lbs./2,612 kg

Engine: CAT or Perkins Diesel
Horsepower: 97–105 HP/72–78 kW

Fuel capacity: 21 gallons/79.5 L
Hydraulic oil capacity: 42 gallons/159 L

Boom arc swing: 86″/218.44 cm
Maximum cutting height: 24″/60.96 cm
Maximum cutting depth: 19″/48.26 cm

Tracks: 72″/182.88 cm long x 9″/22.86 wide

Primary drive: Hydrostatic
Secondary drive: Poly Chain

Cutter wheel: 1,250 RPM

Ground PSI: 4.4

Equipment Highlights

Four-speed ground travel from 0-3.5 MPH/0-5.63 KPH with creep mode

1 ¾”/4.44 cm diameter piloted flange cutter head bearings increase bearing life and minimize exposure to dirt and debris

Conventional cutting system with Greenteeth® hardware

Wireless remote control operation with emergency engine stop and tethered back-up system that controls the track, boom, cutter head and throttle functions

Hydraulic system with 3.3 ci hydrostatic transmission, 8cc gear pump, 16cc track drive gear pump, 5.4 ci hydraulic motor and Emmegi side-by-side radiator and hydraulic oil cooler package

The Morbark Paint System is a Super-Shield® topcoat and two-component, high-performance, isocyanate-free, urethane system.  The topcoat is high-solids, low-VOC, and offers long-term color and UV protections, as well as resistance to a wide range of chemicals, pollutants, and natural weathering. The system utilizes automotive grade pigments in the Super-Shield topcoat to achieve outstanding color and gloss protection.  The system has also been tested to meet many military-grade standards for long-term performance. (Super-Shield is a registered trademark of Cloverdale Paint Inc.)


  • Hydraulic back-fill blade
  • Fold-away boom-mounted deflect curtain assembly
  • Custom paint and logo packages


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