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

rotocasting-Britton-Rotational moulding pertains to a plastic production solution that produces hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have a variety of forms, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing techniques because no pressure is called for. It also has few rivals when it involves the manufacture of large size hollow items which are long lasting and inexpensive.There is a variety of product lines that are generated by this process including large water tanks, automobile materials, intricate shaped medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in terms of design and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Britton MI 49229, 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

Custom Molding-Britton-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 Britton 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 molding technique has been used since earlier times for creatingvseverl product lines. Egyptians as an example, utilized roto-molding systems in the creating of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic items in the USA were manufactured using this method some time between 1940 and 1950. The procedure has however taken very long to catch on because it was considered as being a relatively slow process

1. Mold prep work.
A fixed volume of polymer in powder form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel component. The colour desired for the final product 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 type of plastic engineering.

Pre-heating of the oven starts, 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 placed inside the oven.

2. The heating and fusion process.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly and gradually, about 20 rotations per minute. The main thing that is critical at this point is the amount of time the mould will spend inside the oven. If it overstays, the product will lose stability and strength, generating a poor item. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finished item.

3. Mould cooling.
When the component has sufficiently spent the correct amount of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it reduces a little for ease of removal from the mold. This is one more step that depends upon a lot on the right timing, since rapid cooling decreases the material too rapidly, causing bending of the item.

4. The discharging or de-molding phase.
As soon as the component within te mold has cooled effectively, the person handling the operation can then take out the finalized product from the mould. The technique is repeated from the beginning, supplying a series of similar items.

For more information on the different rotational molding options offered for the Britton MI 49229, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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