Banbury mixer
Quick Summary
The Banbury mixer is a trademarked piece of technology used as a mechanical mixer for processing materials like rubber and plastic. It is a key piece of machinery in the rubber and plastics industries.12
The Banbury mixer functions as an internal mixer, applying heat and pressure simultaneously. It resembles a robust dough mixer with two interrupted spiral rotors that move in opposite directions. This design creates intense shearing action, allowing for the incorporation of additives into base elastomers. An enclosed Banbury-type mixer can produce a significant amount of mixed compound in a short time. This process is crucial for mastication (breaking down molecules for easier flow) and mixing in additives like reactive materials, fillers, and oils.234
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