... , the measurement of outer diameter and adjust the extruder screw speed or traction speed, to control the purpose of OD. Can ... remote controller DDC-3, DDC-5, on the extruder and automaticfeedback control to control the tolerance, improve product quality, reducingconsumption. 4. Display ... 3, DDC-5)i. It be used to remote display and control.ii. Applicable to DC motors, VVVF motor.iii.The controller ...