Material Handling | Process Cooling | Temperature Control | Size Reduction Digital Doser System Technical Specifications DD Series Digital Dosing System offers precise additive feeding for almost any plastics machine, whether your application is injection molding, blow molding, or extrusion. The DD dosing unit uses a variable speed DC drive motor and dosing disc to precisely feed pellet or powder additives, at a set rate, into the throat of the processing machine. Precision design discs and closed loop control ensures high accuracy, dependability and repeatability. Material changeover has never been easier. Just lift two quick disconnects and remove the additive station. With the optional spare station, changeover is immediate. The simple changeover design reduces downtime and safety risk. The DD2 dosing unit offers the ability to use dual additives at different rates. Features Standard Features Optional Features • Disc style feeder module to dose pellets, micro pellets, granulate or powders • Variable speed, closed loop drive • A250 feeder control • Extrusion or injection applications • 110/1/60 operating voltage • Choice of several styles and sizes of discs for precise additive feeding • Spare station for immediate additive changes • Clear plastic 4.4 liter additive hopper with fill cover • Optional motor speeds • Quick disconnect additive hopper for “off the machine” cleanout/material change • Alarm – Audible, Alarm Light, Low Level Sensors • 2” diameter material feed tube with 6” square mounting flanges (top and bottom) • Special voltage • Optional hopper capacities • Hopper loaders for automatic refill • Hoppers for main component • Larger base piece for larger processing machines (3” or 4”) 2900 South 160th Street, New Berlin, WI 53151 | P: 1.262.641.8600 E:

DD SERIES Product Diagrams Advanced Controller The microprocessor-based A250 controller can be set up for either Injection or Extrusion operation. In the extrusion mode, the controller can monitor extruder speeds and adjust the feeder motor to match. In injection mode, the controller has the ability to sense changes in screw recovery time and automatically adjust the feed time and motor speed to compensate. The A250 controller has a touch screen that is easy to operate and has storage of up to 50 recipes. Specifications Additive Rate *Additive rate based on continuous feeding and 44 lbs./cu.ft....