Komatsu Forest is launching four brand new harvesters

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Komatsu 901 

The four new harvesters are the Komatsu 901, the Komatsu 911, the Komatsu 931, and the Komatsu 951. Four new harvesters that include everything from completely new designs, a new cab with a damping option, and an eco-friendly Stage IV engine through a keyless system and a new media hub to a completely new hydraulic system with dual hydraulic circuits the like of which the market has never seen. The result is high production capacity and low fuel consumption per processed timber volume. "We've focused on the operator and made every effort to maximize production from every possible angle in a sustainable manner," Ettemo explains.

"Not only is this our most extensive harvester launch ever, it's also the dawning of a brand new era," says Tobias Ettemo, Product Manager at Komatsu Forest. 

Komatsu 911

The four new harvesters are the Komatsu 901, which is a thinning specialist, the Komatsu 911, which is an all-round harvester, the Komatsu 931, for demanding final logging, and the Komatsu 951, which is quite simply the largest and most powerful harvester in the lineup.

Much focus has been placed on operator ergonomics. The new harvesters build on the well-proven concept of a centrally-placed crane and cab and a swing axle that together with the cab's tilt cylinders offers unique stability and operator comfort. The cab enjoys much better upward and downward visibility, 360 degrees of cab/crane rotation, and low noise levels. A major new feature is the industry's first remote-controlled keyless system, which can control the heating and the main circuit-breaker/lighting from a distance of up to 300 meters (about 1,000 feet). The keyless system is coded by operator so that when the operator activates the main circuit-breaker they are automatically logged in to MaxiXplorer with the appropriate operator profile. The cab also has a completely new media hub, MediaZone, that includes several inputs for both USB and AUX connectors. Those are just a few of all the new cab features.

Komatsu 951

To ensure that operators have the right conditions for effective production, the new harvesters also feature a new 3-pump hydraulic system, which provides unique interaction between the crane, the head functions, and the transmission. This means that there is always sufficient hydraulic power for the operator to perform several tasks at the same time. The 3-pump system enables the operator to use high flow rates at low engine speeds while the transmission circuit is always available to maneuver the machine. The working hydraulics are separate from the transmission, split into two hydraulic circuits. These working hydraulics circuits can be operated separately or together, depending on the function and oil requirements. The result is that the operator can use several crane and head functions together with maximum hydraulic power, such as to slew the crane, feed a log, and maneuver the machine.

The engines are among the first on the market to fulfill the requirements of Stage IV/TIER 4 Final, the

Komatsu 951

most stringent requirements on minimized emissions of environmentally-hazardous particles and nitrogen oxides. The cooling system has high cooling capacity and the components are sized for high air flow rates. This provides high cooling capacity, reduced fuel consumption, and lower noise levels. All four harvesters feature Komatsu Comfort Bogie with the portals concealed inside the rims, which contributes to very good ground clearance.

All the harvesters have parallel cranes with high net lifting power that are fast, effective, and easy to operate. Between the crane and the head is the brake link, Komatsu Multi Disc Brake. All harvesters can be supplied with a choice of cranes with different reaches and a number of different heads.

The new harvester lineup has a modern and functional design facilitating service and maintenance. This entails carefully considered servicing with automation where possible, centralized service points, easier access, and smarter solutions for filters and fuses, for example. Daily inspections are now easily conducted without the need to open any hoods. 
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MR DP MOHD NOOR HUSSIN

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