Nisula 500H

General-purpose head for thinning and final felling of small stems

500H is a powerful alternative for later thinning and final felling of small-stem stands. Its physical dimensions are suitable for thinning, and, thanks to high-quality materials, the weight is also low, only 640 kg. 500H is a harvester head equipped with additional knives that make the handling of even large stems effortless. The additional knives increase productivity with even larger stems, something that harvester heads in the same weight category are not able to achieve.
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 together with the front and rear knives and the roll cylinder apply a stronger grip force to the stem. When feeding starts, the grip force is reduced gradually to minimise friction. The control system has a diameter limit set for reducing the grip force. 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
14-16 ton excavators

CONTROL SYSTEM ALTERNATIVES:

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)
Compatibility with Motomit control systems and Valmet/Komatsu Max

ACCESSORIES:

Saw control
Automatic chain adjuster
Colour marking
Stump treatment facility
Separate chain lubrication function