Plastic Rotational Molding

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Plastic rotational molding is a plastic forming method that converts plastic resin into a hollow mass through high temperature rotation which coats the interior of a mold (tool) to the desired exterior form. It can be used to make complex medical products, toys, leisure craft, and highly aesthetic point-of-sale products.

Features of Roto Molding
1. The mold (tool) rotates on all axes throughout the entire heating process and continues through the rotation until cooled.
2. Unlike other plastic molding processes (such as Thermal, Injection or Blow Molding), rotational molding results in a much more durable and flexible product with seamless and consistent wall thickness.
3. This molding process also distributes more material to corners and edges than other molding methods to help absorb shock and stress where they occur most.
4. Since the material isn't stressed during the rotational molding process, the finished product is stronger, more flexible and less susceptible to cracking.

Plastic Rotational Molding

Roto Molding Process
1. Loading a measured quantity of polymer(usually in powder form) into the mold.
2. Heating the mold in an oven while it rotates, until all the polymer has melted and adhered to the mold wall.
3. Cooling the mold, usually by fan.
4. Removal of the part.

Advantages of Plastic Rotational Molding
1. A hollow part can be made in one piece with no weld lines or joints.
2. The moulds are relatively inexpensive.
3. The lead time for the manufacture of a mould is relatively short.
4. Short production can be economically viable.
5. There is no material wastage in that all of the material is normally consumed in making the part.
6. Different types of product can be moulded together on the one machine.

Common Materials for Roto Molding
MDPE Nylon 11 Nylon 12
LLDPE PVC Cross-Linked PE
Super Linear Polyethylene Post-Consumer resins HDPE

1.We provides a high quality affordable plastic rotational molding, plastic roto molding solution according to customer requirements.
2.We will ensure the following services: suitable materials, affordable cost, reliable quality, test report and stable delivery.
3. We are able to utilize our low cost structures in China, and provide a low cost and reliable final plastic rotational molding products, lower than almost any other countries plastic roto molding service supplier.
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