Komatsu 931.1

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The optimal combination of strength and flexibility for high productivity and profitability.

Work environment
Superb ergonomics, high productivity, and reliable operation make every shift easy and enjoyable.

Crane geometry
The easily maneuvered CRH 22 boom, the most powerful in its class on the market (220 kNm/162,300 lbf- ft), offers unique opportunities for exact head positioning even at the far end of its reach.

Newly developed engine
New powerful engine that minimizes emissions of NOx (nitrogen oxides) and reduces fuel consumption. The engine is also easy to service with its maintenance-free belt transmission.

Control and information system
Market-leading control system, MaxiXplorer, with specially customized software suite for optimal productivity and reporting.



Torque 1,070 Nm at 1,500 rpm
Power 193 kW DIN (259 hp) at 1,700 rpm
Fuel tank approx. 370 l (98 gal)
Stroke volume 7.4 l (452 cu in)
Fuel tank approx. 370 l (98 gal)
General info 74-AWI. 6-cylinder, turbo with Commonrail. EPA Tier 4 Interim and EU Stage IIIB. DEF/SCR after-treatment (not applicate for all markets).