Looking for rotational molding alternatives for Indiana? Want affordable custom plastic molding that is cost effective for Berne area? Then give us a call at our toll free number 866-971-7861 or request a quote today!

rotomoulding-Berne-Rotational molding pertains to a plastic production method that creates hollow stress-free products. The technique utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a variety of forms, sizes and colors. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The benefit that makes this unique from other plastic manufacturing processes that no pressure is required. It also has few contenders when it comes down to the manufacture of large hollow products which are resilient and inexpensive.There is a wide variety of product lines that are generated by this process including large water tanks, automobile products, intricate designed medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in regards to style and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Berne IN 46711, it is a cheaper way of making plastics. This is because apart from the fact that no pressure is required, the cost of mold preparation is low.
  • A wide array of design options.
    There is no limit to the kind of design one may want to create. The roto-molding process therefore allows for the manufacturing of products that have complex shapes for different purposes.
  • Size.
    The process provides room for the manufacturing of products of any size, large or small. As mentioned earlier, it has few competitors when it comes to the making of large tanks at low costs.
  • Low risk.
    Due to the low costs of creating a mould, the process allows for test runs before one can decide whether to do mass production. It therefore minimizes the risk of losing a lot of investment.
  • Durable products.
    The process allows for even coating of the mould with the heated polymer, giving the product a wall with uniform thickness. It also gives the option of double coating for increased durability. Sometimes metal inserts are placed inside the mould to further strengthen the product.
  • Environmentally friendly.
    There is no waste that could have a negative impact on the environment because the products that cannot be used are reground and reused as polymer.

Examples of Products Made by Rotational Molding

Plastic Molding-Berne-Rotocasting is a very versatile process, making it possible to create a variety of products for different industries.

  • Agricultural industry– From cattle feeders, water troughs, spray tanks etc.
  • Automotive industry– Filler tubes, dash boards, arm rests, sun visors, air conditioner duct work etc.
  • Furniture– We have plastic cabinets, chairs and tables made from this form of moulding.

There are numerous Indiana plastic products also that have been made for the marine industry, lighting, waste storage and transportation, kayaks etc.

Few Disadvantages – There are nominal disadvantages that have been associated with rotocasting. For instance:

  • – The process is relatively slow when compared to injection moulding.
  • – There is a limitation when it comes to the type of raw material you can use. Only poly based and nylon polymers can be used.
  • – The process comes with an increased cost because the polymer has to be ground to powder form before use.
    These limitations are often overlooked considering that the process is still relatively cheap and offers more in terms of variety when it comes to the finished range of products.

Remember – There are new developments and discoveries that are being made as the world of plastic manufacturing in Berne Indiana continuously. For instance, tests are being done to see whether there are other materials that can be used for this process. But so far, rotomoulding offers a good option for the production of a wide range of inexpensive plastic products.

The Rotomoulding Method in Detail

This molding operation has been used since ancient times for creatingvseverl products. Egyptians as an example, applied rotocasting methods in the manufacturing of ceramics. The Swiss were also making use of this rotation type to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this approach some time between 1940 and 1950. The technique has however taken long to catch on because it was considered as being a rather slow-moving process

1. Mould prep work.
A fixed quantity of polymer in powder form is packed into a hollow mould. The mould is usually built from cast aluminium or sheet steel substance. The coloration wanted for the final goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic manufacturing.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then sealed and positioned inside the oven.

2. The heat and fusion step.
Once within the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The rotation is done slowly, about 20 rotations per minute. The main thing that is critical at this moment is the period of time the mold will spend inside the oven. If it overstays, the material will lose stability and strength, creating a faulty product. If it is extracted from the oven too early, the polymer will not have melted properly, which produces bubbles in the finalized item.

3. Mold cooling.
When the material has sufficiently spent the enough of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it reduces somewhat for ease of extraction from the mold. This is another step that relies a lot on the ideal timing, since rapid cooling reduces the material too quickly, causing bending of the product.

4. The discharging or de-moulding step.
As soon as the product inside te mould has cooled adequately, the person managing the process can then take out the completed item from the mould. The process is repeated from the beginning, providing a series of exact product lines.

For more information on the different rotational rotomolding options offered for the Berne IN 46711 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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