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About Rotomolding, Inc.                                                   320-639-1500

When cost is a factor, rotational molding has the advantage over other types of processes. Whether you have parts which you are presently paying too much for or have something new in mind, please give us a call. From start to finish, we have the knowledge and capabilities to handle all of your rotational molding needs.

  • We do secondary operations to finished products.McNeil Rotomolding and production equipment
  • We fit your needs for custom ordered products.
  • We build molds to customer specifications.
  • We produce your products to exacting specifications with unlimited production capacity.


  • We have multiple machines with swing capability up to 160° diagnonal.
  • McNeil 800 with 3 independent actuated arms with a 60” swing.
  • McNeil 1500 with 3 independent actuated arms with an 88” swing.
  • We can swing your molds now for quick turn around on parts or prototypes.

Robotic Quality Control:Robotic Quality Control! Click to see this machine in Action!

  • Peerless robotic precision. Error rate: 1/1000 inch over 400 inches!
  • Eliminates human error in critical cutting to exact specifications.
  • Mass produce thousand of exact duplicate products!

We use the most current methods to achieve the highest quality, cost effective parts.

Rotational molding offers design advantages over other molding processes. With proper design, parts that are assembled from several pieces can be molded as one part, eliminating seams, and creating a product of superior durability.

The process also has a number of inherent design strengths, such as consistent wall thickness and strong outside corners that are virtually stress free. If additional strength is required, reinforcing ribs can be designed into the part.

Rotational molding delivers the product the designer envisions. Designers can select
the best material for their application, including materials that meet FDA requirements. Additives to help make the part weather resistant or static free can be added upon request.

Inserts, threads, handles, minor undercuts, flat surfaces that eliminate draft angles or fine surface detail can all be part of the design. Designers also have the option of multi-wall molding that can be either hollow or foam filled.

In comparison to injection and blow molding, rotational molding can easily produce large and small parts in a cost effective manner. Because parts are formed with heat and rotation rather than pressure, molds don't need to be engineered to withstand the high pressure of injection molding.

Production costs for product conversions are reduced because lightweight plastics replace heavier, often more costly materials which makes rotational molding as cost effective for one-of-a-kind prototypes as it is for large production runs.