The 100 Series Weigh Scale Blender from Maguire Products provides a practical and affordable means for molders and extruders with small processing equipment to blend color or additives with extremely high precision. One of the smallest machines of this type, the unit weighs and blends up to four components at rates up to 450 lbs/hr (204 kg/hr).

The 100 Series Blender features an exceedingly precise Micro-Pulse™ metering device. At the heart of the Micro-Pulse™ system is a unique slide gate apparatus attached to a pneumatic cylinder with a very short (0.125 in.) stroke. The cylinder is rapidly and sequentially pulsed up to 20 times per second during dispensing of the ingredient, permitting very precise total doses. For instance, a dispense can be programmed to produce 25 on/off cycles of the cylinder, each cycle delivering about 0.1 gram of material, for a total dispense of 2.5 grams.

The machine is self-calibrating, never needs adjustment for accuracy, and achieves an overall precision of 0.1% of specified blend. Proprietary microprocessor-control technology monitors and confirms the individual weight of each material component (natural, regrind, color, and additive). Any variation that may have occurred in the actual weights of any components is detected and compensated for. This provides for a continuous process of calibration and correction, assuring extreme accuracy of the blending process. The controller also compensates for use of any previously colored regrind, reducing in accordance the amount of color to be dispensed.