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

rotomoulding-Forest Park-Rotational molding refers to a plastic production technique that makes hollow stress-free items. The method utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have various designs, colors and sizes. This procedure is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing procedures that no pressure is needed. It also has few contenders when it involves the production of sizable hollow items which are durable and inexpensive.There is a variety of products that are created by this process including large water tanks, automobile materials, sophisticated molded medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in regards to style and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Forest Park IL 60130, 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 rotational 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 Manufacturing-Forest Park-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 Forest Park 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 process has been used since ancient times for creatingvseverl products. Egyptians as an example, used roto-molding methods in the manufacturing of ceramics. The Swiss were also working with this rotation design to make hollow chocolate eggs. Some plastic items in the USA were manufactured utilizing this approach some time between 1940 and 1950. Considering that it was looked at to be a relatively slow-moving method, the technique has however taken long to become popular

1. Mold preparation.
A predetermined measure of polymer in grain form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel material. The color intended for the end goods is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic production.

Pre-heating 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 mould with the powdered polymer is then locked and put into the oven.

2. The heat and fusion phase.
Once inside the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The rotation is done gradually, about 20 spins per minute. The main thing that is crucial at this moment is the amount of time the mould will spend inside the oven. If it stays to long, the material will lose stability and strength, generating a weak product. If it is taken out from the oven prematurely, the polymer will not have liquefied correctly, which creates bubbles in the finalized item.

3. Mold cooling down.
When the material has completely spent the right amount of time in the oven, it is then extracted 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 shrinks a little for ease of extraction from the mold. This is one more step that depends upon a lot on the correct timing, since rapid cooling shrinks the material too fast, causing bending of the product.

4. The un-loading or de-moulding phase.
When the product inside te mold has cooled effectively, the molder managing the process can then extract the finished item from the mold. The technique is repeated from the beginning, supplying a series of identical items.

For more information on the different rotational molding options offered for the Forest Park IL 60130 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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