Nisula 555C

More power and properties for thinning and final felling of small-stem stands


The new 555C is a multi-purpose harvester head equipped with grapple arms that make timber handling and sorting effortless. In combi-machine use, the separate grapple arms also allow loading without changing the head. The manufacturing quality and materials of the head are of the standard that Nisula is known for. Considering 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 casing equipped with a blade lubrication tank and patented Nisula Goldfinger guillotine cutting function. This harvester head has properties that improve cost efficiency.
The NCU3 control system adjusts the grip force of the head to the size of the stem being handled. When larger trees are felled and heavier stems handled, the grapple arms apply a strong grip to the stem. When feeding starts, the grip force is reduced to minimise friction. The control system has a diameter limit set for reducing the grip force. The grip force of the grapple 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.


Delimbed energy wood processing
Light final felling


Medium-heavy harvesters
14-18 ton excavators
Heavy forwarders in combi-machine use


NCU3Lite with length and diameter measurement function
NCU3i with length and diameter measurement function + cubic volume measurement function + priority bucking function
NCU3X with length and diameter measurement function + cubic volume measurement function + value bucking function + data transfer facility (option)
Dasa Forester
Motomit IT/PC
Valmet/Komatsu Maxi


Saw control
Automatic chain adjuster
Colour marking
Stump treatment facility
Nisula Goldfinger guillotine cutting function

Technical data

Weight 810-840kg 1786-1851lb
Clean delimbing Ø 320mm 13"
Single cut Ø (1 stem) 550mm 22"
Number of delimbing knives 3 + 1 3 + 1
Opening of front knives 500mm 20"
Opening of feed rollers 585mm 23"
Opening of grapple arms 1200mm 47.2"
Width in delimbing position (open/closed) 1370/1090mm 54/43"
Height in felling position 1350mm 53"
Operating pressure 200-240bar 2900-3480psi
Required oil flow 150-200l/m 40-53gpm

Details 555C


Entirely new hydraulics for 150-250 l/m flow


New length measurement package; hydraulic lifting of the measuring wheel, touchless sensors


New diameter measurement function; backlash-free transmission, touchless sensors


Patented Nisula Goldfinger guillotine cutting function


Entirely new, efficient Nisula NSU saw assembly with 19 cm3 saw motor (Parker)


Bolt-mounted saw casing equipped with a blade lubrication tank and pump