The Weiler M860 mulcher is a multi-purpose, heavy-duty machine designed to tackle a variety of land management projects.  Applications include residential/commercial development, utility and pipeline right-of-way construction and maintenance, wetlands and wildlife habitat management, plantation reclamation and management, and clearing for flood control and firebreaks. The Weiler 825 Mulcher is available installed on the machine from the factory and provides an optimized solution for your clearing needs.


The Weiler 825 mulcher comes installed from the factory and is optimized for the M860. Rugged structures, reinforced skids, and internal abrasion-resistant plating minimize downtime and repairs. All daily service points are at ground level.


A quiet and spacious cab with a powerful HVAC system and rear view camera keep operators comfortable and productive. The premium seat, wide leg room near the joystick mounts, and overall machine balance provide a superior ride.


A clean three-piece front windshield and sleek hose routings allow the operator to see the work zone easily without having to strain or reposition the machine. This minimizes operator fatigue and leads to more productivity.


Ground level fuel fill, electric hydraulic oil fill pump, four-sided access to the engine and hydraulic pumps, as well as a tilting cab provide full access to the interior of the machine delivering excellent serviceability.


The machine is segmented into separate compartments that are pressurized to prevent debris from entering the machine. Perforated panels keep the machine components at cooler temperatures longer and along with heavy duty steel hinged belly pans reduce cleaning time.


Rugged frames with integrated steering cylinder mounts and a center hitch field-proven for nearly 20 years are built for the harshest applications. The large cooling system keeps the engine and hydraulics cool, extending component life.

Engine Model Cat® C9.3B Tier 4 Final
Gross Power 375 hp (280 kW)
Engine Speed 1880 rpm
Weight 38,450 lb (17 740 kg)
Fuel Capacity 130.5 gal (494 L)
DEF Capacity 11.8 gal (44.7 L)
Hydraulic Tank Capacity 30.4 gal (115 L)
Wheelbase 125.0" (3175 mm)
Ground Clearance 24.7” (627 mm)
Transport Width 9’ 11” (3.03 m)
Transport Height 11' 3" (3.43 m)
Transport Length 29’ 11” (9.12 m)
Travel Speed (low) 0-4.8 mph (0-7.7 km/h)
Travel Speed (high) 0-9.7 mph (0-15.6 km/h)
Cutting Path - 825 8’ 4” (2.54 m)
Max Single Cut Diameter - 825 16.0" (406 mm)
Max Mulching Diameter - 825 16.0” (406 mm)
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Base configuration includes 30.5L-32 26PR Tires, winch ready, and 825 mulching head. Weight: deduct 1,720 lb (780 kg) for 28L-26 tires and 0 lb (0 kg) for 67-34 tires. Height and ground clearance deduct: 4.0” (10.2 cm) for 28L-26 tires and 3.0” (7.6 cm) for 67-34 tires.