Supplier's Category: All Rotational Molding: Hollow plastic parts formed by rotating heated molds
Rotational molding forms hollow plastic parts by rotating a heated mold on two axes while powdered resin melts and coats the interior evenly. It produces large, seamless hollow parts with more uniform wall thickness than blow molding, at lower tooling cost but slower cycle times.
Rotational molding trades cycle speed for low tooling cost and part size flexibility — a good fit for large hollow parts at low-to-mid volume where blow molding’s tooling cost isn’t justified.
- Large hollow parts: tanks, kayaks, playground equipment, large containers
- Low-to-mid volume: lower tooling cost than blow molding, longer cycle time
- Uniform wall thickness: better stress-crack resistance than some alternatives
Related terms: rotational molding, biaxial rotation, powdered polyethylene resin, mold venting design, wall thickness uniformity, cooling cycle control, rotomolded tank design, drop-box (multi-material) molding
Showing Rotational Molding: Hollow plastic parts formed by rotating heated molds 11-20 of 23
Where rotational molding is chosen
This process concentrates in large, hollow, low-to-mid volume parts.
- Storage and agriculture: tanks and large containers
- Outdoor and recreational equipment: kayaks, coolers, playground structures
- Material handling: pallets and large bins