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Roto vs. Other Molding

Rotational molding offers many benefits over other types of molding such as injection molding, blow molding and thermo-forming:

  • Greater design flexibility

    Rotationally molded pieces can be designed and manufactured to fit just about any space available. Often parts that are assembled from multiple pieces can be consolidated into one rotomolded part. That improves design possibilities. And the fewer parts, the fewer chances for part failure.

  • Dramatic cost savings

    Because there is no interior core to manufacture, tooling for rotational molding parts is less expensive than tooling for other types of molding. When compared to most durable metals, plastics are substantially more cost effective.

  • Consistent wall thickness

    Traditionally, metal components are weakest at the corners – the exact areas where the parts endure the most stress. With injection molding or blow molding, it’s difficult to achieve total consistency in wall thickness. With rotomolding, the constant rotation allows the resin to coat every surface evenly.

  • Superior strength

    A number of factors contribute to the superior strength of rotomolded parts: durable new plastics, consistent wall thicknesses, one-part construction and corrosion-resistance.

  • Shorter production times

    We can usually design the piece, tool it and begin production in fewer than 3 months. Compare that to the minimum lead time of 6 months for injection molding, and it’s easy to see that rotomolding brings your finished product to market dramatically sooner.

  • Easier to modify

    Because of the relative simplicity of the tooling, minor alterations can be made to an existing mold to accommodate your changing production needs.

  • Ability to do small runs

    With less expensive tooling, rotomolding makes it possible to do smaller runs on products. In fact, many of our customers find it economical to do runs as small as 10 pieces.


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