Forestry forwarder 855-3

Overview
The Komatsu 855-3 forwarder is a 14-metric-ton class timber forwarding machine designed for efficient loading and transport in demanding forestry conditions. It combines hydrostatic transmission, configurable load frames and powerful crane options to match a range of operational requirements.

Key product notes

• Available load-capacity options: 12, 14, 16 or 20 metric tons to suit different jobs.
• Powerful crane systems and modular FlexBunks for adaptable load handling.
• Hydrostatic transmission and high ground clearance for operation on rough terrain.

Features and benefits

• Efficient loading - Multiple frame lengths and load-capacity variants allow machine selection tailored to payload and site constraints. Cranes offer long reach with strong lifting and slewing torque.
• Smooth, fast transport - Chassis, suspensions and Komatsu Comfort Bogie axles with high portal offset and V-shaped frames deliver elevated ground clearance and stable transport when loaded.
• Operator comfort - Spacious cab with wide visibility, ergonomic controls and optional Comfort Ride suspension for extended work shifts.
• Powerful yet efficient - 170 kW engine (6.6 L, 6-cylinder) provides high torque with fuel-efficient management adapted to load.
• Technology-driven traction - Intelligent hydrostatic transmission adapts to machine load and terrain; selected models include hydraulic retarder overspeed protection.
• Customize your controls - Control settings can be tuned for sensitivity, speed or smoothness. MaxiXplorer/MaxiXT monitors and coordinates engine, crane and transmission functions.
• Easy to maintain - Service-friendly layout with electronically powered tilting hood and grouped filters for rapid access.
• Overcome climbing obstacles - Optional heavy-duty stacking blade with high departure angle to avoid interference with battery boxes or hood guard.
• Options for added benefit - Bunk wideners, rear/front-view cameras, touchscreen computer and electric fuel fill pump available.
• Cold weather starting - Standard diesel heater system warms engine coolant, hydraulic oil and batteries to assist cold starts, including on the 855-3.

Resources

• Download spec sheet (product spec PDF available)
• Press release (product announcement)
• Financing information

Specifications

• Model: 855-3
• Brand: Komatsu
• Gross load: 14 000 kg (30,865 lbs)
• Power: 170 kW DIN at 1 900 rpm (228 HP at 1,900 rpm)
• Engine displacement: 6.6 L, 6-cylinder diesel with turbo and intercooler; EU Stage IV / EPA Tier 4 Final
• Torque: 950 Nm @ 1,500 rpm
• Tractive force: 187 kN
• Driving speed (terrain/road): 0–8 / 20 kph
• Fuel tank: 160 L
• Crane reach: 8–10 m
• Rotator: G121 ProTec
• Grapple: Komatsu G28
• Lifting torque, gross: 127 kNm
• Slewing torque, gross: 28.7 kNm
• Hydraulic flow: 280 L @ 2 000 rpm
• Hydraulic system pressure: 260 bar
• Approx. operating weight: 6WD: 16 400 kg; 8WD: 18 000 kg
• Width (with tires): 2 726 mm (600/55x26.5) or 2 956 mm (710/45x26.5)
• Length (shortest rear frame): 10 085 mm
• Transport height (with hoses): 3 800 mm
• Ground clearance at steering coupling: 6WD: 562 mm; 8WD: 632 mm
• Bunk area: 4.3–5.9 m^2
• Electrical system: 24 V; Batteries: 2 x 180 Ah
• Note: Specifications describe possible equipment; standard/optional items vary by country and are subject to change.