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

rotational moulding-Climax-Rotational moulding pertains to a plastic manufacturing solution that makes hollow stress-free items. The process depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have different forms, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this different from other plastic manufacturing procedures because no pressure is needed. It also has few contenders when it pertains to the manufacture of large hollow items which are resilient and inexpensive.There is a wide range of product lines that are created by this process including large size water tanks, automobile materials, complex shaped medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in regards to style and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Climax MI 49034, 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 rotomoulding 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-Climax-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 Michigan 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 Climax Michigan 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 Procedure in Detail

This moulding method has been used since early times for creatingvseverl items. Egyptians as an example, applied rotomoulding techniques in the of ceramics. The Swiss were also working with this rotation method to generate hollow chocolate eggs. Some plastic product lines in the USA were made utilizing this approach some time between 1940 and 1950. Given that it was regarded to be a fairly slow method, the method has however taken long to become popular

1. Mould preparation.
A predetermined measure of polymer in grain form is filled into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel material. The coloration preferred for the finished 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 type of plastic production.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then sealed and installed into the oven.

2. The heat and fusion step.
Once inside the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The rotation is done gradually, about 20 spins per min. One thing that is essential at this moment is the period of time the mould will spend within the oven. If it stays to long, the material will lose value and durability, making a weak product. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which develops bubbles in the completed product.

3. Mold cooling.
When the material has sufficiently spent the correct 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 slightly for ease of removal from the mold. This is an additional step that relies a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing warping of the product.

4. The un-loading or de-moulding step.
When the material inside te mould has cooled successfully, the molder managing the procedure can then remove the finalized item from the mould. The process is repeated from the beginning, making a series of exact items.

For more information on the different rotational molding options offered for the Climax MI 49034, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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