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

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

The attribute that makes this different from other plastic manufacturing procedures that no pressure is called for. It also has few rivals when it pertains to the creation of large size hollow products which are long lasting and inexpensive.There is a wide variety of products that are generated by this process including large water tanks, automobile materials, sophisticated molded medical products, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in terms of type and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in West Branch MI 48661, 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

Custom Molded-West Branch-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 West Branch 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 Roto-Molding Method Components

This molding process has been used since early times for creatingvseverl product lines. Egyptians as an example, applied rotational molding methods in the producing of ceramics. The Swiss were also employing this rotation method to generate hollow chocolate eggs. Some plastic product lines in the USA were developed using this method some time between 1940 and 1950. Since it was looked at to be a basically slow process, the approach has however taken long to become popular

1. Mold readying.
A fixed amount of polymer in powder form is packed into a hollow mold. The mould is usually made of cast aluminium or sheet steel substance. The colour 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 style of plastic engineering.

Pre-heating 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 locked and put into the oven.

2. The heat and fusion process.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The spinning is done slowly, about 20 rotations per sixty seconds. One thing that is essential at this point is the amount of time the mould will spend within the oven. If it overstays, the product will lose stability and strength, producing a weak product. If it is removed from the oven too early, the polymer will not have flowed correctly, which generates bubbles in the finalized item.

3. Mold cooling down.
When the material has completely spent the enough 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 material cools, it shrinks somewhat for ease of removal from the mould. This is another procedure that depends a lot on the right timing, since rapid cooling reduces the material too rapidly, causing warping of the item.

4. The unloading or de-moulding phase.
Once the component within te mold has cooled successfully, the person taking care of the procedure can then remove the finalized product from the mould. The technique is repeated from the start, supplying a number of similar products.

For more information on the different rotational molding options offered for the West Branch MI 48661, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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