A gravimetric blender is a type of equipment used in the plastics processing industry to mix and blend multiple components accurately in precise quantities. It is a highly automated system that uses load cells to measure and control the amount of material that is added to the mixing process. The term “gravimetric” refers to the use of weight measurement to ensure that each component is added in the correct proportion.
A typical gravimetric blender consists of a hopper or container for each component, a weighing system for each hopper, and a mixer or blender that combines the materials in the correct proportion. The load cells used in the weighing system can measure the weight of each component with high accuracy and feed this information to a controller that adjusts the rate at which each component is added to the mixing process. This allows the system to maintain consistent proportions and minimize errors caused by operator variability.
Gravimetric blenders are commonly used in the production of plastic products such as pipes, films, and injection-molded parts. They offer several advantages over other mixing methods, including high accuracy, increased efficiency, and reduced waste. By ensuring that each component is added in the correct proportion, gravimetric blenders can help manufacturers save money on materials and reduce the amount of scrap generated during the production process.
