Other

Ponsse Oyj

Yrjö Leinonen

Marko Halonen

Toni Auvinen

The invention relates to a crane comprising wherein the pressure cylinder is arranged to form an essentially coaxial multi-chamber cylinder with the actuator cylinder to be followed.

Crane

The invention relates to a harvester crane, which includes a set of booms, which are attached by means of a pedestal and rotating device to a chassis machine, in which the set of booms includes a main boom, which is pivoted at its lower end by a lower pivot to the pedestal; and an articulated boom, which is pivoted by an upper pivot to the opposite end of the main boom and which extends its path mainly forward from the main boom; operating devices, i.e. a lift device and a transfer device, operating the booms. The lower pivot of the main boom is located low down near to the rotating device and the pedestal is fork-shaped, the lower arm and the lift cylinder being located at least partly inside it.

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Koljonvirta, Finland

Yrjö Leinonen