Komatsu 931

Strong and smart harvester

Komatsu 931

The Komatsu 931 is a strong harvester with optimal manoeuvrability. With its high production capacity and operator comfort it is built for truly demanding logging. 


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.

Improved off road manoeuvrability

Improved off-road manoeuvrability with higher ground clearance, greater tractive force and improved power steering.




Komatsu 931 harvester dimensions
A. Width

With 600/55x26,5 tyres: 2 726 mm (8'11")

B. Length, total

7 525 mm (24'8")

C. Length, front axle to middle joint

1 930 mm (6'4")

D. Length, middle joint to rear axle

1 800 mm (5'11")

E. Transport height

3950 mm (12'12") to top of roof, straight cab. 3910 mm (12'10") backwards tilted cab with tilted light ramp. Both measurements with tire compressions.

F. Ground clearance at steering joint

685 mm (2'3")


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

Approximate weight

From 19 880 kg (43,828 lb)


AGCO POWER, 6-cylinder, diesel engine with turbo and intercooler. EU Stage V, Tier 4F, MAR-1 and Stage II.

Stroke volume

7.4 l (1.95 gal)


EU Stage V, Tier 4F and Stage II: 190 kW DIN at 1 850 rpm. MAR-1: 193 kW DIN at 1 900 rpm


EU Stage V, Tier 4F and Stage II: 1 130 Nm at 1 500 rpm. MAR-1: 1 000 Nm at 1 500 rpm)

Fuel tank

405 l (107 gal)

Model and reach

230H: 8.7 m (28'7"), 10 m (32'10"), 11 m (36'1")

Gross lifting torque

230 kNm (16,964 lbf-ft)

Gross slewing torque

47.5 kNm (35,034 lbf-ft)

Available heads

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


528 l/min (139 gal/min) at 1 600 rpm

System pressure

280 bar


24 V

Battery capacity

2 x 180 Ah


2 x 100 A

Driving speed

0 - approx. 21 km/h (13,1 mph)

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.