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Plastics Processing: Blending / Compounding

Many production situations call for the tailoring of raw materials for a specific job application. In such situations where the material formulation is done in-house at the production facility, units known as feeders and blenders may be employed.

The most common types used by the processor are weigh blenders and gravimetric systems consisting of two or more hoppers holding the basic resin, and whatever additives are required for the particular plastic recipe. The system constantly monitors material requirements on the production machine and meters out individual materials in proper proportion to a central mixer which, in turn, transfers them to the feed opening in the production equipment.

These systems are, by design, mechanical and electric / electronic in nature making them non-applicable to the natural gas industry at this time.