Komatsu 855

Powerful yet compact

Komatsu 855

The Komatsu 855 makes it easy to deliver. With its power, nimbleness and smart solutions, the Komatsu 855 is a forwarder that offers you long-term productivity in all situations.


Easy to maintain

Service and maintenance are quickly and easily conducted. All daily service can be performed from ground level via easily accessible service hatches and the dipsticks are quickly and easily checked. The engine hood is electrically powered and the filters are strategically located together for easy access under the hood. The forwarder has many conveniently located service hatches.

Efficient loading

The crane has a long reach and a high net lifting force, a reliable pillar and hose routing solution and a Combi outer boom. Tiltable crane pillar (option) for efficient loading in steep terrain.

Excellent operator environment

The cab is spacious with plenty of legroom and numerous storage solutions. The large windows offer fantastic visibility upwards, downwards and to the sides and make crane operation easier and more relaxed. The cab has a low noise level and a driver’s seat that offers superb comfort and a large working range. Naturally, Comfort Ride cab suspension is available as an option.

Flexible bunk with high load capacity

The Komatsu 855 has a large bunk characterised by its flexibility and many options. One is FlexGate, the gate that improves visibility and flexes out of the way if struck by the crane. This simplifies loading and minimises the risk of machine damage. Another is FlexBunk, which with its hydraulic height-adjustable stakes and option to widen the bunk provides a high load capacity.


The machine is ready for installation of MaxiFleet, the world's first fleet management system for forestry machines. A unique tool that enables searches, compilations and presentations for all the machine and production data that your machine generate, with the powerful MaxiXplorer as the informations source.




A. Width

With 600/55x26,5 tires: 2 726 mm (8'11"). With 710/45x26,5 tires: 2 956 mm (9'8").

B. Length, total

10 085 mm (33'1") (with shortest rear frame)

C. Length, front axle to middle joint

1 800 mm (5'11")

D. Length, middle joint to rear axle

3 300 mm (10'10") (with shortest rear frame)

E. Transport height

3 880 mm (12'9") (hoses included and with tire compression)

F. Ground clearance, at steering coupling

6WD: 562 mm (1'10"). 8WD: 632 mm (2'1")

Approximate weight

6WD: From 16 400 kg (36,156 lb ). 8 WD: From 18 000 kg (39,683 lb)

Type, Europe and North America

66 AWF. 6-cylinder diesel engine with turbo and intercooler. EU Stage IV and EPA Tier 4 Final.

Stroke volume

6.6 l (1.7 gal)


170 kW DIN (228 HP) at 1,900 RPM.


950 Nm at 1,500 rpm

Fuel Tank

160 l (42.3 gal)

Gross load

14,000 kg (30,865 lb)

Bunk area

4,3 - 5,9 m² (46.3 - 63.5 sq.ft), depending on options and market


Komatsu 130F


8 m (26'3") / 10 m (32'10")

Gross lifting torque

127 kNm (93,670 lb-ft)

Gross slewing torque

28.7 kNm (21,168 lb-ft)


G121 ProTec and slewing dampened link.


Komatsu G28


280 l/min (74 gal/min) at 2 000 rpm

Max working pressure

260 bar (3,771 psi)


24 V

Battery capacity

2 x 180 Ah


2 x 100 A

Driving Speed

0-8/20 km/h (0-5/12.4 mph) (terrain/road) (max speed with steering wheel)

Tractive Force

187 kN (42,039 lbf)

General information

The specifications describe possible equipment, not which equipment is standard or optional. Standard and optional equipment varies between countries. Your sales representative has an up-to-date list of what is included. Weights are based on the equipment specified in the basic specification. Specifications and designs are subject to alteration without prior notice.

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