Mécano Mobile R.L. Amqui

A thinning harvester operates in young sections of forest. They are kept relatively dense in order to maximize the growth rate. High-quality thinning requires that the harvester is rather small and can be maneuvered in small space. Furthermore, the machine weight must be relatively low. The HR46x meets these requirements. Further modifications have been made resulting in a light but strong chassis. The narrow harvester has a middle joint with a 50-degree turning angle resulting in unique maneuverability. The outer turning radius is 402 cm. Tyre width can be chosen between 500 and 650 mm.

The HR46x harvester is equipped with full hydrostatic drive transmission. In this system there are no vulnerable axles and there is no train of gears. Changing from one gear to the next in the multi-speed radial piston motors is done electrically. The torque in the Sampo Hydraulics drive motors is high as soon as the machine starts to move. Since the wheels are constantly rolling without scratching, no marks are left on the terrain in the forest to be thinned. The turning of the harvester is also harmless to the ground because there is no bogie axle.

The Sampo Rosenlew factory also manufactures the spacious, silent cab which helps the operator to work efficiently. From the HR46x cab it is easy to see the tree tops, which is a requirement for the correct choosing of trees to be harvested. The cab meets the official safety standards and is specially designed to be used in a dense thinning forest when the remaining trees must be left unharmed. The cab features many details that make it easier for the operator to work and feel more comfortable.

The HR46x harvester has a7.1 meter parallel crane with sufficient 55 kNm lifting capacity to ensure swift working. The crane is also very flexible to use even in a dense forest. The side tilt, which can also be switched on to work automatically, helps to pick the very trees that the operator wants to remove. Furthermore, it helps when operating on a slope or on rough terrain. The low construction of the crane improves the sideways stability and visibility towards the trees to be felled. The vertical fastening plate serves the same purpose, bringing the crane foot as close to the operator as possible.

We only use harvesting heads from well-known manufacturers. The main brands are Kesla. For thinning, the harvesting head should be small and designed so that it is easy to move to the tree to be harvested in the dense forest without harming the remaining trees. The harvesting head and accessories are selected based on the intended use. For example, there are specific equipment or applications for the standard harvesting head designed for producing energy timber.

Sampo-Rosenlew uses engines manufactured by Agco Power with several decades of experience in Linnavuori, Nokia.  The power plant of the HR46x is the TIER 4 final phase common rail and SCR technology-equipped Power 49 AWF diesel engine. The low fuel consumption of the low-emission engine, coupled with extended service intervals, allow to keep operating costs at minimum. It has 124kW of power and the torque is highest exactly in the RPM range that is used the most in operation. The engines are silent and have been made to last.