Komatsu 845

An all-round forwarder

Komatsu 845

The Komatsu 845 is an all-round machine that is suitable for both thinning and lighter clear cutting. With the 2021 model, it has been updated with news such as new chassis, new engine and new steering system. It is now fully in line with the larger forwards, in a more compact format.


A crane that makes the job easy

Our forwarder cranes have a unique design and are 100% optimized for Komatsu forwarders. The well-matched combination of machine, crane, hydraulics and grapple provides a forwarder with high productivity and good reliability. The design of the cranes involves a minimum of protruding parts, for example our design of the telescopic arm, which helps to protect the remaining stock in thinning. The hoses are highly protected thanks to the ProTec link, which provides higher reliability.


Flexible load space

The Komatsu 845 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.

Excellent visibility in all directions

In thinning, it is especially important that the operator has a good overview of both the surrounding forest and where the machine is in relation to each individual tree. That is why the visibility in the Komatsu 845, as in all Komatsu forwarders, is excellent in all directions - over the hood and down towards the wheels as over the load space and tree tops. This allows the operator to feel confident about not damaging remaining trees.




Komatsu Forwarder Dimensions
A. Width

With 600/55x26,5 tyres: 2 620 mm (8'7")

B. Length, total

9 380 mm (30'9") (with shortest rear frame)

C. Length, front axle to middle joint

1 900 mm (6'3")

D. Length, middle joint to rear axle

2 900 mm (9'6")

E. Transport height, with hoses and tire compression

3 880 mm (12'9") / 3 840 mm (12'7") 105F with crane tilt

F. Ground clearance, at steering joint

660 mm (2'2")


Stated dimensions are nominal and may vary slightly depending on production tolerances and choice of equipment.

Approximate weight

From 16 950 kg (37,368 lb)


AGCO Power, 4-cylinder diesel engine with turbo and intercooler. EU Stage V (Europe), EPA Tier 4F (North America)

Stroke volume

4,9 l (1.3 gal)


140 kW DIN at 1900 rpm.


800 Nm at 1500 rpm

Fuel Tank

145 l (38.3 gal)

Gross load

12 000 kg (26,455 lb)

Bunk area

3,5 - 4,8 m² (37,7 - 51,7 sq.ft)


Komatsu 105F, Komatsu 130F


105F: 7.7 m (25’ 4”) / 9.5 m (31' 2'') /10 m (32' 9''), 130F: 8 m (26'3") / 10 m (32'10")

Gross lifting torque

105F: 103 kNm (75,969 lb-ft), 130F: 127 kNm (93,670 lb-ft)

Gross slewing torque

28,7 kNm (21,170 lb-ft)




Komatsu G28

Max hydraulic flow

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


24 V

Battery capacity

2 x 140 Ah


2 x 100 A

Driving Speed

0 - appr. 25 km/h (0 - appr. 15.5 mph)

Tractive Force

172 kN (38,700 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.