The new 555C is a multipurpose harvester head equipped with gripper arms that make handling and sorting wood effortless. When using the combined machine, the separate gripping arms also allow loading without changing the head.

The build quality and materials of the head are of the standard that Nisula is known for. Given its properties, the head is exceptionally light, only 810-840 kg, depending on the equipment. 555C offers numerous new properties: completely new hydraulics for heavy flows, efficient Nisula NSU saw assembly, bolt-mounted saw housing equipped with a blade lubrication reservoir and Nisula Goldfinger patented guillotine cutting function. This harvester head has properties that improve cost efficiency.

The NCU3 control system adjusts the gripping force of the head according to the size of the stem to be manipulated. As larger trees are felled and heavier stems are handled, the gripper arms apply a strong grip to the stem. When feeding begins, the gripping force is reduced to minimize friction. The control system has a diameter limit set to reduce the gripping force.

The gripping force of the gripper arms is controlled proportionally. If necessary, the settings can be adjusted via the control system, but usually the harvester head works best with the standard settings.