Komatsu 931

Powerful all-round machine

Komatsu 931

The combination of agility and strength makes the Komatsu 931 a really powerful all-round machine. It works equally well for late thinning and final felling.


Komatsu 931

Tailored to your working day

– Choose between three crane lengths: 8.7/10/11 m

– Several productive heads to choose between, for everything from late thinning to final logging.

– The Komatsu 931 is a six-wheeled machine with a design that makes it easier to manoeuvre and more compact in confined spaces when compared to an eight-wheeled machine.
Komatsu 901

Agile and low-impact thinning

When thinning in dense forests, a harvester manoeuvred with both ease and agility without impacting standing forest is a must.

Our thinning harvesters are designed to do just that. Thanks to their compact size, they can operate in confined spaces and both the cab and the crane are designed for smooth movements to reduce the risk of damaging standing forest.

Another advantage is our tried-and-tested parallel crane, which simplifies crane operation. Thanks to a combination of strength and speed, it also contributes to efficient work methods.
Komatsu 931

Ideal for combined assignments

Our versatile machines are flexible all-rounders suitable for anyone who works with both late thinning and lighter final logging.

The agile yet robust design and 230H crane make this harvester incredibly strong even at long reaches. This particular crane is also suitable for heads with multi-tree handling.

The 26.5" wheels pass obstacles in the terrain extremely easily while also being ideal for snowy ground.

Some of our harvester options


The right head for every assignment

The choice of head always begins with the conditions faced in the forest. There are all kinds of trees, each of which poses different challenges requiring specialist solutions.

Our broad offering encompasses heads specially designed for particular types of forest and suitable for everything from initial thinning to final logging of the largest trees.

For the 931, you can choose between the following heads: S92, C93, C124, S132, C144, 370E

Komatsu 901

Give your cab a finishing touch

The harvester cab has an ergonomic design with many added conveniences to help ensure job satisfaction. It can also be complemented with a wide range of extra equipment, should you want to tailor your workplace to suit your personal preferences. You can see a few of these options below, with more to be found in the brochure.
– Sequence control for both EME and mini joysticks
– Interior floor lighting and reading lamp on flexible arm
– Radio with Bluetooth and hands-free support
– Food box heater
– Cooler
– Sun shades
– Removable floor mat

By the way, did you know that the storage space in the panel behind the driver's seat can be used to cool bottles of drink? Ideal for keeping cool on hot days.

Smart Crane Harvesters

Crane operation at its easiest

For a harvester operator, an easily operated crane is important for ensuring a productive working day. With Komatsu Smart Crane, the crane – from the main boom all the way to the tip of the telescopic arm – is controlled with a single, smooth lever movement.

Thanks to the crane’s precision and responsiveness, the operator can easily steer the head where they want it, contributing to a more relaxed way of working. A relaxed operator can keep up a high and steady production during the day and still feel more refreshed at the end of the working day. Advantages that will be seen in both profitability and the operator’s well-being.


Leave nothing to chance

Smart Forestry gives you access to a collection of digital services that help make the workplace safe, smart, productive and sustainable - whether you have one or a hundred forest machines. You can keep track of your machines, collaborate with colleagues, and make wise decisions based on facts.

Smart Forestry consists of three different applications, making it easy for you to find the one that suits you and your business.

MaxiFleet Precision mindre

Smart Forestry Precision

Smart Forestry Precision uses the latest technology in satellite positioning to determine the machine’s position with an error margin of just a few centimetres. This paves the way for productive and smart work methods where the operator is provided with key information and support to enable informed decisions.

There are several useful functions within Precision, like the ability to create exact, digital fences to mark the borders of a work area or around protected areas. It's also easier to classify stems based on environmental considerations with the stem code visualisation tool.




A. Width

With 600/55x26.5 tyres: 2 726 mm.

B. Length, total

7 525 mm

C. Length, front axle to middle joint

1 930 mm

D. Length, middle joint to rear axle

1 800 mm

E. Transport height

3950 mm to top of roof, straight cab. 3910 mm backwards tilted cab with tilted light ramp. Both measurements with tire compression.

F. Ground clearance at steering joint

685 mm


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

Approximate weight

From 19 880 kg


AGCO POWER, 6-cylinder, diesel engine with turbo and intercooler. Stage II.

Stroke volume

7.4 l


190 kW DIN at 1 850 rpm


1130 Nm at 1,500 rpm

Fuel tank

405 L

Model and reach

230H: 8.7 m, 10 m, 11 m

Gross lifting torque

230 kNm

Gross slewing torque

47.5 kNm

Available heads

S92, C93, C124, S132, C144, 370E


528 l/min at 1,600 rpm

System pressure

280 bar (4,061 psi)


24 V

Battery capacity

2 x 180 Ah


2 x 100 A

Driving speed

0-21 km/h

Tractive force

189 kN

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.