Designed for on-machine feeding, the ProRate Feeder is ideally suited for injection or extrusion feeding applications. As the material enters the processing machine, the ProRate precisely meters pelletized color concentrates, modifiers or freeflowing additives into the raw material stream. A full range of feed rates is available with the ProRate’s variable speed motor and full complement of auger sizes. Designed for modular flexibility, ProRates can be added or removed to adapt to your changing requirements. If, for example, you start metering one ingredient and wish to add a second, simply bolt on another ProRate Feeder. In addition, microprocessor based controls provide easy calibration and continuously monitor the ProRate’s speed via a closed loop control system to ensure feed accuracy.

Injection applications
To maintain a consistent ratio of raw material and additives, the ProRate can be set up to cycle on and off repeatedly with the injection molding machine. The ProRate’s inhibit circuit synchronizes the feeder with the injection process. This enables the ProRate to introduce material only during the screw recovery cycle.

Extrusion applications
The ProRate is also well suited to the continuous feed of extrusion applications. Once the feed rate has been set, the ProRate will maintain that setting accurately for long or short run times. The ProRate can also be slaved to the extruder. By connecting the ProRate’s voltage-following circuit to the extruder, it will match the speed changes of the extruder, up or down, from the initial set point.

ProRate Feeder Features

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ProRate Feeder with 1.75 cu. ft. Hopper
yProRate Feeder with 2.50 cu. ft. Hopper
ProRate Gravity Mixer

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