Mounted forestry wood chipper PRO AM-120TR

PTO-driven

Product overview

The ARPAL AM-120TR is a tractor-mounted (PTO-driven) wood chipper from ARPAL's professional range, designed for efficient processing of branches up to 120 mm in diameter with a throughput of up to 6 m³/h. With its compact footprint, reinforced frame and components built for continuous operation, it is the workhorse for farms, orchards, municipal services and landscape contractors. The machine complies with EU safety directives and is trusted by customers in Germany, Denmark, the United Kingdom, Switzerland, Canada and beyond.

The chipper converts branches and timber waste into uniform firewood chunks of 90–180 mm — a superior fuel for solid-fuel and pyrolysis boilers, fireplaces and stoves, and an ideal feedstock for charcoal production. Thanks to the optimal fraction size, the chunks season naturally without specialized drying and store significantly better than traditional logs.

Key features

• Tractor PTO drive — no separate engine to fuel or maintain; compatible with tractors from 24 HP (recommended 50 HP), max. PTO speed 540 rpm.
• PureCut shredding technologies: ARPAL ExtraCut blades in AISI 5140 steel with a precision double-bevel edge, induction-hardened to ~50 HRC over a ductile core — up to 200 m³ of wood per sharpening, up to six maintenance cycles.
• KineticCore gearbox with 2.5× torque multiplication and heat-treated gears — confident cutting of maximum-diameter branches under load.
• Stabilizing inertia flywheel accumulates kinetic energy, compensates peak loads and prevents RPM drops on thick branches.
• SmartFix tapered couplings ensure perfect blade alignment and slip on extreme overload (~2000 Nm), protecting shafts and gears.
• ARPAL Total Protect safety package: protective friction clutch on the PTO shaft shields the drive train from overload; extended hopper geometry makes contact with the blades physically impossible; Quick Stop emergency handle at the hopper edge; fully enclosed transmission with protective shields and a safety curtain at the input.
• ErgoBase functional design: reinforced heavy-duty hopper with 4 mm steel flange and perimeter stiffening ribs, plug-and-play operation, easy hand-access to service points, and premium electrostatic powder coating that keeps the machine corrosion-free and "like-new" even after years of outdoor use.
• Flexible discharge: into a bag, trailer or directly on the ground.
• Options: additional blade sets; double bagger; T5 cardan shaft (standard); T5 cardan shaft, extended (for T-40 type tractors).

Technical specifications

• Model: ARPAL AM-120TR
• Drive type: tractor PTO
• Min. tractor power: 24 HP (recommended: 50 HP)
• Max. PTO speed: 540 rpm
• Max. branch diameter: 120 mm softwood / 100 mm hardwood
• Output chunk size: 90–180 mm
• Max. productivity: 6 m³/h
• Working blades: 6 (ARPAL ExtraCut, AISI 5140 steel)
• Max. blade speed: 220 rpm
• Feed opening size: 160 × 280 mm
• Tractor mounting axle diameter: 28 mm
• Dimensions (working position): 1730 × 890 × 1200 mm
• Transport dimensions (disassembled, on pallet): 1200 × 800 × 1366 mm
• Storage dimensions: 1274 × 904 × 1254 mm
• Weight: 255 kg

Documentation

Operator and maintenance manual available for download, including detailed setup, operation and service instructions. Use the correct cardan shaft type and observe the recommended PTO speed for safe operation and maximum service life.

Warranty

3 years on the equipment. Full technical support throughout the entire service life of the machine.