Fits on 30 or 55 gallon drum
Automatic Speed Control
Because pumping rate is directly related to pump operation, accuracy is obtained by controlling the exact degree of rotation of the drive motor. The unique Maguire Digital Controller is designed to do this with precision.
A digital counter provides the means for predetermining the exact degree of rotation and, therefore, the precise amount of coloring that will occur during each cycle. When the preset count is reached, the motor automatically shuts off, ensuring that no excess colorant is metered.
Motor speed is automatically controlled by the internal microprocessor to allow color metering to occur uniformly over the entire screw return cycle. The operator need not concern himself with motor speed adjustment, voltage fluctuations or changing cycle times.
To determine the proper setting for the counter, a simple formula is used based on shot weight in grams, percent let-down desired and the liquid color weight in lb/gal or gm/l. Once production is started, the counter setting can be adjusted up or down as required to achieve the desired shade of coloring.
In addition to this precise control of the quantity of liquid being metered, the microprocessor ensures the motor speed is precisely held regardless of changing torque requirements.
With this option the drum pump follows the speed of the extruder automatically. Any changes in extruder speed are followed exactly by the pump output.
A tachometer that currently exists on your extruder provides either an AC or DC voltage output. When the “tachometer feedback” signal is fed into the Maguire Drum Pump controller, the pump output is then able to match the extruder speed up or down.
|MDA/MDA-H||lbs/hr @ 10lb/gal||kg/hr @ 1200g/litre||CCs/Min||Gal/hr||Litre/hr||Max||CCs/rev.||HP|