Towed forestry wood chipper ARPAL PRO AM-120BD-K

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Product overview

The ARPAL AM-120BD-K (PRO series) is a gasoline-powered wood chipper with a conveyor transporter, designed for mounting on a trailer (trailer not included). Fully autonomous thanks to its own 20 HP engine, it processes branches up to 120 mm in diameter with a throughput of up to 10 m³/h, loading the output directly into a trailer, container or pile up to 3 m high — a complete mobile processing line for farmers, arborists, 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. The chunks season naturally without specialized drying and store significantly better than traditional logs.

Key features

• Aero-Lift conveyor system: loading height up to 3 m; gas struts let a single operator fold and unfold the conveyor; premium four-layer polymer belt (made in the Netherlands) with ultrasonically welded cleats.
• Independent gasoline drive (20 HP) — works anywhere, no tractor or power supply needed.
• 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 6.25× torque multiplication and heat-treated gears — confident cutting of maximum-diameter branches under load.
• 15 kg 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: PowerGuard friction clutch protects the engine 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.
• Easy Start clutch engagement near 1500 rpm — smooth, stress-free startup for both operator and engine.
• ErgoBase functional design: reinforced hopper with 4 mm steel flange and perimeter stiffening ribs, plug-and-play operation, and premium electrostatic powder coating that keeps the machine corrosion-free and "like-new" even after years of outdoor use.
• Options: additional blade sets; single-bag filling hopper for a mesh bag, mountable on the conveyor (made to order).

Technical specifications

• Model: ARPAL AM-120BD-K (PRO series)
• Drive: gasoline engine, 20 HP
• Max. engine speed: 3,600 rpm
• Recommended fuel: unleaded gasoline, RON 92/95
• Specific fuel consumption: 230 g/hp·h
• Max. branch diameter: 120 mm softwood / 100 mm hardwood
• Output chunk size: 90–180 mm
• Max. productivity: 10 m³/h
• Working blades: 6 (ARPAL ExtraCut, AISI 5140 steel)
• Max. blade speed: 240 rpm
• Feed opening size: 160 × 280 mm
• Conveyor loading height: up to 3 m
• Dimensions (folded, without trailer): approx. 1700 × 900 × 2080 mm
• Weight (without trailer): 490 kg
• Mounting: designed for trailer installation; trailer not included

Documentation

Operator and maintenance manual available for download, including detailed setup, operation and service instructions.

Warranty

3 years on the equipment; the engine is covered by a separate 1-year manufacturer warranty. Full technical support throughout the entire service life of the machine.