Komatsu 931

Strong and smart

Komatsu 931

The new Komatsu 931 is built for truly demanding logging. In severeal decisive areas it provides the benchmark for future needs of maximum production capacity, eco-friendliness and operator comfort – the most important of which are presented here.

Revolutionary 3-pump hydraulics

The 931's immense work capacity is much due to the brand new 3-pump hydraulics, split into dual circuits with separate pressure levels. The system is power-regulated against the diesel engine and offers a class-leading hydraulic capacity of 584 l/min. Unique pressure and flow optimisation enables you to work considerably faster without losing hydraulic power. You can operate several crane and head functions simultaneously with maximum hydraulic power, such as slewing the crane, feeding a log and manoeuvring the machine with optimally low fuel consumption.

Parallel crane

Fast and powerful parallel crane, easy to operate. Mechanical crane tip control. Rapid out, powerful in. Parallel curve. Agile in thinning. Contributes to lower fuel consumption.

Levelling function

The cab levelling function means that you are always seated levelly and don't need to stretch and strain to maintain good posture.

Service friendly

With easily accessible inspection and service points grouped together, an electronically operated engine hood and vertically mounted fuel and oil filters, the daily service is easily conducted.


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 tyres: 2 722 mm. With 710/45x26.5 tyres: 2 952 mm

B. Length, total

7 550 mm

C. Length, front axle to middle joint

1 930 mm

D. Length, middle joint to rear axle

1 800 mm

E. Transport height

3 930 mm

F. Ground clearance

665 mm

Approximate weight

From 19 610 Kg


74 CW12, 6-cylinder diesel engine with turbo and intercooler. Stage 2

Stroke volume

7.4 l


185 kW DIN (248 hp) at 1,900 rpm


1100 Nm at 1,500 rpm

Fuel tank

405 L

Model and reach

230H: 8.7 m, 10 m, 11 m

Gross lifting torque

230H: 229 kNm

Gross slewing torque

47.5 kNm

Available heads

8,7 m: S92, C93, C123, S132, C144, V132E. 10 m: S 92, C93, C123, S132, C144, V132E. 11 m: S92, C93, C123


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

0-8/24 km/h (off-road/road)

Tractive force


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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