This Astec Peterson 4710B is a used horizontal grinder — sometimes referred to as a wood hog or tub grinder's tracked counterpart — built for high-volume size reduction of wood waste, land-clearing debris, stumps, and similar organic material. Astec is a well-established manufacturer of heavy processing and road-building equipment, and its Peterson brand is recognized specifically for industrial grinding and chipping machines used in forestry, land clearing, wood recycling, and biomass production. This 2018 machine is track-mounted, making it self-propelled and capable of moving under its own power across job sites without requiring a separate carrier.
The grinding chamber features a 60-inch wide by 37-inch high drum opening, providing a substantial feed capacity for large-diameter material. The 54-inch wide discharge conveyor moves processed material away from the machine efficiently at high throughput. Power comes from a Caterpillar C18 turbocharged diesel engine rated at 750 horsepower, and notably this engine does not require DEF (Diesel Exhaust Fluid), simplifying fuel management and reducing operating overhead in the field.
Cooling is handled by hydraulic reversing fans, which automatically clear debris from the radiator — a practical feature in dusty, fiber-rich grinding environments where clogging is a constant concern. The machine comes equipped with an onboard 11-horsepower Honda air compressor capable of producing 175 PSI, useful for maintenance and pneumatic tasks on-site. An additional onboard Honda water and trash pump is also included. The fuel tank has a 300-unit capacity, supporting extended operation between refueling stops. Remote control operation is included, allowing the operator to manage the machine from a safe distance. The machine's approximate operating weight is 80,000 pounds.
Located in Texas, USA, this 2018 Astec Peterson 4710B horizontal grinder is priced at $395,000.
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