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DMF-1 Additive Feeder Options

Colour changer option

This option includes modifications to the additive feeder body casting and auger-barrel cartridge to allow cleanout, by means of a remote control.
A linear actuator operated slide gate allows automatic draining of the feeder hopper.   
The material handler does not have to climb on the machine, and from a safer vantage point can ready the additive feeder for it’s next job.
This option in conjunction with a HRE drawer magnet box, and CL200-CD vacuum loader, will allow the material handler to perform a complete colour change while remaining on the ground. 

The Colour changer option reduces the risk of injury from falls     


Control Options for the standard additive feeder control:

•    The Digital Potentiometer Option is a pushbutton potentiometer upgrade to the standard Colourmate  motor control. It improves both the precision of the control along with the repeatability of speed setting.
•    The  DC Voltmeter Display Option is  DC voltmeter which measures the actual voltage which is being applied to  the additive feeder motor. This readout is scaled from 0 to 100 percent, and will provide an excellent reference number since it is affected by fluctuations in the line voltage. In any factory large number of electrical devices are constantly being switched on and off. This produces variations in line voltage which are reflected in the voltmeter display number.

The Microdrive Control

Extruder follower – Additive feeder control

The Microdrive control slaves the throughput of
the additive feeder to the speed of the extruder screw rotation.
It is a comparative type control which receives pulses from a pickup on the additive feeder motor armature, and pulses from a pickup installed on the extruder screw. This control constantly compares these two sets of pulses, and adjusts the additive feeder motor speed in order to maintain the set pulse count ratio.
The  reference number displayed on the Microdrive’s digital readout, represents this pulse ratio. A  membrane switch on the
control’s face allows provision for pulse ratio adjustment.