The powerful Phase IV / Final engine, with SCR technology, supports large loads with a minimum engine speed. It is based on the common-rail technology, properly tested with high injection pressure and with a faster and more precise injection, all of which provides more power, higher torque and lower emissions, while reducing fuel consumption.
If you add to this to the fact that the engine has optimized combustion chambers, the result is an engine with a highly efficient combustion when more power is required.
The 855 has a basic traction force of 187 kN and an excellent mobility at all times, thanks to a unique interaction between the engine, the control system and the transmission. The Komatsu 855 allows for a high torque at low revs and automatically adapts when the load varies depending on terrain, obstacles and slopes. As a result, you get maximum productivity by leveraging each horsepower and fuel liter.
It has a spacious loading area that offers many alternatives.
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.
The operator´s cabin
The cabin is spacious with great legroom and plenty of places to store items. Large glass surfaces provide superb visibility up, down and sideways, and make working with the crane easier and more relaxed. The cabin has low noise level and the operator's seat offers comfort and an excellent working area.
Hydrostatic-mechanical transmission controlled by computer.
Traction in detachable chassis, front and rear differential lock.
Travel speed: 0 -20 km/h V
Traction force: 187 kN
Three alternatives for the rear frame.
Dampening Bogie stops.
Front and back towing points.
Hydraulic system: sensitive to the load, with a circuit and variable piston pump.
Flow rate: 280l/min at 2000 r.p.m
Hydraulic oil tank: 120 l
Others: Pressure filters for hydrostatic circuit.
Two return filters for hydrostatic transmission oil and working hydraulics.
Hydraulic oil level alarm.
Single circuit brake system, fully hydraulic, multiple disc brakes.
Hydraulic charging valve for accumulators.
Service brake / multiple disc brakes in oil bath.
Working brake: automatic or manual coupling while at work.
Parking brake: spring brake with electro-hydraulic control.
Spacious and bright cabin, with excellent visibility.
Thermal and acoustic insulation.
Seguridad: Safety: Complies with ISO 8082 on standards for protective structures in the event overturning (ROPS), ISO 8083 (FOPS) and ISO 8084 (OPS).
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A powerful drive system, a high performance crane and a wide load area combined with simple operation. These are the keys to the high productivity offered by the Komatsu 855.
Their strength comes from a large reserve capacity which is the result of a single interaction between the engine, the control system and the transmission. The 6-cylinder engine delivers a high performance. The injection technology and a purification of exhaust gases meets the latest environmental requirements, allowing for it to work anywhere in the world.
The power unit provides high torque at low revs and automatically adapts when the load varies according to the terrain, obstacles, slopes, and crane loads.