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wood chippeRs<br />
hh 520 / 30 Z<br />
hh 520 / 30 d<br />
drum shredder with hydraulic intake for the<br />
production of high-quality compost<br />
The machine is capable to shred nearly any kind of<br />
wood waste (up to full trunks in max diam. of 30 cm)<br />
with relatively little effort. A steel chain belt and a holddown<br />
roller with welded-on tips provide for reliable and<br />
powerful intake of the material.<br />
• hold-down roller with steel claw<br />
• Wheel arrangement, standard!<br />
• Forced intake by means of a 600 mm long chain belt<br />
• including a set of quick-change blades with holder<br />
• ejection chute and baffle with electric actuator,<br />
standard for all hh 520 / 30 D models<br />
40 kW ø 300<br />
A control bar is provided on the<br />
infeed chute and equipped with<br />
safety rope system to perform<br />
immediate shutdown of machine<br />
in case of emergencies without<br />
leaving the operator’s place in<br />
front of the machine. This concept<br />
was designed for maximum<br />
safety even for manual infeed of<br />
the material.<br />
Fig.: HH 520 / 30 D with tandem chassis with braking facility, towing bar (adjustable<br />
up and down) with eye and ball hitch<br />
80<br />
The material-intake system is hydraulic<br />
and comprising an intake<br />
roller and a 600 mm long chain<br />
belt capable to handle even short<br />
timber or logs from an upstream<br />
splitter or processor.<br />
An overdimensioned intake roller<br />
assures trouble-free feeding<br />
of the material even in case of<br />
thicker trunks and timber.<br />
The core of the machine is a<br />
robust heavy rotating disc with<br />
6 cutting knives to provide for<br />
an enormous centrifugal mass<br />
that develops a strong impact<br />
force of the blades and therefore<br />
an excellent output even at a low<br />
power rate.<br />
The unit is fitted with a No-Stress<br />
electronic power control system<br />
for the production of high quality<br />
compost by one-man operation.<br />
The infeed of woody material into<br />
the unit is controlled by ways of<br />
a special electromagnetic valve<br />
designed to reduce the number<br />
of revolutions of the disc blade in<br />
order to avoid overloading the unit<br />
or the tractor (in order to operate<br />
the No-Stress device a 12V outlet<br />
must be available on the tractor).<br />
The drum forces the shreds<br />
through a perforated grate<br />
(standard 35/40 mm sieve)<br />
yielding an homogeneous compost<br />
particle size. This becomes<br />
a very valuable option for composting<br />
heat applications.<br />
The screw conveyor underneath<br />
it forces the material to<br />
the 130 kg heavy rotating disc.
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