Materials and media
Technical data
Weight, kg 810-840
Clean delimbing Ø, mm 320
Single cut Ø, mm (1 stem) 550
Number of delimbing knives 3 + 1
Opening of front knives, mm 500
Opening of feed rollers, mm 585
Opening of grapple arms, mm 920
Width in delimbing position, mm (open/closed) 1370/1090
Height in felling position, mm 1350
Operating pressure, bar 200-240
Required oil flow, l/m 150-200

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.

USES:

Thinning
Delimbed energy wood processing
Light final felling

SUITABLE BASE MACHINES:

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

CONTROL SYSTEM ALTERNATIVES:

NCU3Lite with length and diameter measurement function
NCU3 with volume measurement function
NCU3i with volume measurement function + value scaling function
NCU3X with volume measurement function + value scaling function + data transfer facility
Dasa Forester
Motomit IT/PC
Valmet/Komatsu Maxi

ACCESSORIES:

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

Details 555C

1. Entirely new hydraulics for 150-250 l/m flow

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

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

4. Patented Nisula Goldfinger guillotine cutting function

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

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