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Cast-aluminium body with stainless
steel material hopper, stainless steel auger and separate electronic
controls. A variety of neckpieces are available for mounting the
unit at the throat of the machine.
The unit is easily removed from the
neckpiece for calibration and a slide-gate is provided to enable
fast clean-down for material change.
The auger is driven by a
high-precision stepper motor. The controls provide variable-speed
setting and include a timer and a calibration button.
Due to the nature of the stepper
motor, the auger speed can be varied from 10% to 100% thus providing
a wide range of dosing rates without the need to change the auger
size.
Injection Moulding
Upon receiving a screw-back signal
from the machine, the auger will rotate at the set speed and the
material will be dosed into the neckpiece where it blends with the
virgin material. The auger runs for the duration of the screw-back
period or for the time set on the timer.
Extrusion and Blow Moulding
The unit will run continuously at the
speed set on the controls. The controls include a 0 to 10vDC
extruder screw-speed following function to coordinate the speed of
the dosing unit to the extruder. |
