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

roto-molding-Addison-Rotational molding pertains to a plastic production solution that creates hollow stress-free items. The function utilizes high temperatures and bi axial rotation to follow up with seamless, one piece items that have several shapes, colors and sizes. This procedure is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing techniques because no pressure is called for. It also has few contenders when it comes down to the manufacture of large size hollow items which are resilient and inexpensive.There is a wide range of products that are created by this process including large size water tanks, automobile items, intricate molded medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of design 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 Addison MI 49220, 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

Custom Molded-Addison-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 Addison 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 Rotomolding Procedure in Detail

This moulding procedure has been used since earlier times for creatingvseverl items. Egyptians for example, employed rotocasting techniques in the making of ceramics. The Swiss were also using this rotation approach to create hollow chocolate eggs. Some plastic product lines in the USA were developed using this technique some time between 1940 and 1950. The procedure has however taken very long to catch on because it was thought of to be a moderately slow process

1. Mold prep work.
A fixed measure of polymer in powder form is loaded into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel material. The coloration desired for the finished goods is pre compounded into the polymer. The most commonly 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 up to temperatures between 500-700F. The mold with the powdered polymer is then secured and placed inside the oven.

2. The heating and fusion phase.
Once inside the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done gradually, about 20 spins per sixty seconds. The main thing that is crucial at this moment is the period of time the mold will spend within the oven. If it stays to long, the product will lose stability and durability, generating a faulty product. If it is removed from the oven too early, the polymer will not have flowed correctly, which generates bubbles in the completed product.

3. Mould cooling.
When the product has sufficiently spent the right amount of time in the oven, it is then removed 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 shrinks slightly for ease of removal from the mould. This is one more step that depends upon a lot on the right timing, since rapid cooling shrinks the material too quickly, causing bending of the item.

4. The unloading or de-moulding step.
As soon as the product within te mold has cooled successfully, the person managing the procedure can then extract the completed item from the mold. The procedure is repeated from the beginning, providing a number of similar products.

For more information on the different rotational molding options offered for the Addison MI 49220, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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