Benefits of Rotational Molding
Unlike other plastic molding processes, rotomolding results in seamless parts with uniform wall thickness and more material in corners, to absorb shocks and stresses where they occur most.
Since the material isn’t stressed during production as in thermoforming or pressure forming, the finished part is stronger. Additionaly, the molds don’t need to be designed to withstand the high pressures of injection molding, and since the mold has no internal core to manufacture, tooling costs are also lower - and minor changes can easily be made to existing molds.
Superb Flexibility and Precision
- Complex contours, metal inserts, flanges, and molded-in threads can be designed into the walls - requiring fewer steps to get to your finished product.
- Colors never crack or chip off, since they’re molded-in. Of course, this means no painting is required.
Generally lighter in weight than metal or fiberglass, rotomolded plastic products are also easy to handle and less expensive to ship. They’re tough, long lasting, and corrosion-proof.
Additional Advantages of Rotational Molding
- Decreased Lead-Time
- One-piece construction: virtually stress-free enclosed parts or with openings
- Design flexibility from small and intricate to large and complex
- Economical for short production runs, prototype research and volume production
- Variety of finishes and color
- Metal inserts as integral parts
- Weight reduction as compared to most metals
- Excellent load-bearing properties
- Ability to produce multi-wall moldings, hollow or foam filled
- Minor undercuts are possible with no draft angles required
- Thickness can be varied if required
- Cost saving - economic tooling costs
- Uniform wall thickness; no thinning in the extremities
- Resistance to stress-cracking and corrosion