ColorSave 1000ST-INJ user manual
LIAD Weighing and Control Systems Ltd
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NTRODUCTION
ColorSave 1000ST-INJ is a single-component, gravimetric masterbatch/additive feeder for injection
molding machines.
During normal operation, the device controls the weight of the masterbatch/additive
(from now on
referred to as MB/AD)
fed into the machine with each injection shot, using a loss-in-weight method.
By continuously measuring the weight of the material in its hopper, the system immediately detects
any deviation from the preset MB/AD weight, and automatically corrects this by regulating the current
(rpm) of the feeding screw.
If required, the feeder can operate in “constant” (non-regulated) current mode - the motor works at a
pre-selected current (rpm) without being regulated by the controller.
The MB/AD is fed directly into the injection machine’s feeding throat through a neckpiece adapter.
The ColorSave 1000ST-INJ is fitted with a feeding screw; there are 5 standard types of screw for
varying dosing ranges. Note that correct selection of the screw is instrumental in obtaining very high
accuracy.
The feeder can be equipped with an integral Venturi loader, which automatically refills the hopper
whenever its contents fall below a predefined minimum weight.
The feeder’s entire operation is automatically controlled by a powerful, sophisticated, yet easy-to-
operate control unit.
