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

rotational molding-Granvle-Rotational molding refers to a plastic production method that produces hollow stress-free items. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have varying designs, colors and sizes. This method is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing procedures because no pressure is called for. It also has few competitors when it comes to the creation of large hollow items which are long-lasting and inexpensive.There is a wide range of products that are created by this process including large size water tanks, automobile products, complex molded medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to type and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Granville IL 61326, 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 rotomolding 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-Granvle-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 Illinois 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 GranvIllinoisle Illinois 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 Process in Detail

This moulding technique has been used since ancient times for creatingvseverl product lines. Egyptians for instance, worked with rotational molding techniques in the making of ceramics. The Swiss were also working with this rotation style to generate hollow chocolate eggs. Some plastic products in the USA were manufactured using this technique some time between 1940 and 1950. Since it was thought of to be a basically slow method, the method has however taken long to become popular

1. Mold preparation.
A fixed volume of polymer in grain form is loaded into a hollow mould. The mould is usually made from cast aluminium or sheet steel component. The coloration wanted for the final product is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic assembly.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then secured and positioned inside the oven.

2. The heat and fusion phase.
Once inside the oven, the mold is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done slowly and gradually, about 20 spins per sixty seconds. Something that is important at this moment is the period of time the mould will spend inside the oven. If it stays to long, the material will lose stability and strength, creating a weak item. If it is taken out from the oven too early, the polymer will not have melted correctly, which develops bubbles in the finalized item.

3. Mold cooling.
When the product has sufficiently spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it reduces a little for ease of extraction from the mold. This is yet another step that depends a lot on the ideal timing, since rapid cooling reduces the material too quick, causing warping of the material.

4. The removing or de-moulding step.
As soon as the product inside te mold has cooled successfully, the molder managing the process can then extract the finalized product from the mold. The function is repeated from the beginning, making a number of identical items.

For more information on the different rotational molding options offered for the Granville IL 61326 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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