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Hopper
The hopper can be designed as single hopper
for seed or a twin hopper for seed and fertiliser.
Single hopper / pneumatics
The single hopper on the Pronto 6 AS has a ca-
pacity of 3500 litres and is provided with a cover.
The tarpaulin should always be kept closed to
protect the seed against contamination, dust
and moisture.
In case of extreme development of dust, this dust
can deposit in the hopper and fill up the roller
flutes. This causes metering faults and unneces
-
sary wear inside the metering unit.
With the slider installed the seed can be distrib-
uted and the hopper completely filled.
Venturi-type injector
The single-hopper design is equipped with an
injection nozzle in the Venturi area.
In the Venturi area the metering unit injects the
seed into the air flow.
A foldable lid is mounted to the underside of
the Venturi area. For the purpose of calibrating
the cover is opened and the calibration bag is
hooked on to the hooks on the housing.
In order to avoid malfunctions in the injector noz-
zle or on the seed transport or the distribution
during the seed placement, all connections and
the lid must be tightly closed.
Air leaks lead to metering errors.
Metering unit with Venturi-type injector
