Fillers weighing/dosing.

Pressure scales from the company are said to provide high accuracy weighing of carbon black, white fillers and silica, and like the company's range of vacuum scales, they are said to be ideal for low headroom or single story mixing room applications. Typically supplied in a 100 kg capacity, the pressure scale features a steel scale casing that is lined with a flexible rubber jacket, has a fluidized outlet cone for optimum filler discharge and is mounted on a loadcell weigh frame. Up to ten twin-speed infeed devices are said to accurately feed filler sequentially into the scale, and typically the weighing cycle is three minutes for weighing two materials into a combined batch size of 100 kg. As with all fillers weighing applications, the number and capacity of scales must be carefully selected to balance cost, accuracy and mixer cycle times, according to the company. Feeder types and feed rates are also carefully determined by taking into account batch cycle time, material inclusion size and accuracy requirements.

Chronos Richardson

www.chronosrichardson.com