8480.79 - Other types:

This HTS category, 8480.79, encompasses molds specifically designed for shaping rubber or plastics that do not fall under the "injection or compression types" described in subheading 8480.71. The key distinguishing factor here is the molding process. While 8480.71 is reserved for molds that utilize injection or compression mechanisms to force material into the mold cavity, this category covers other methods of shaping rubber and plastic materials. Examples include molds for blow molding, rotational molding, or extrusion processes where the material is introduced and solidified through means other than direct injection or compression.

The primary function of these molds is to provide the negative impression of the final product, allowing for mass production of rubber and plastic articles. Their construction can vary significantly depending on the intended molding technique and the material being processed, often incorporating complex internal cavities, cooling channels, and ejector systems. The materials used in their construction are typically metals like steel, aluminum, or specialized alloys, chosen for their durability, heat conductivity, and ability to withstand high pressures and temperatures inherent in plastic and rubber processing.

Within this broad classification, further detail is provided by subcategories. Subheading 8480.79.10 specifically addresses molds intended for use in shoe machinery. This highlights a particular application where specialized molds are employed for the efficient production of footwear components. The residual category, 8480.79.90, serves as a catch-all for all other types of molds for rubber and plastics that are not injection or compression types and do not fall under the specific shoe machinery exclusion. This ensures that all remaining relevant items are appropriately classified.