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

rotocasting-Seymour-Rotational moulding pertains to a plastic manufacturing procedure that makes hollow stress-free product lines. The process relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have varying shapes, sizes and colors. This procedure is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing methods because no pressure is involved. It also has few contenders when it comes down to the manufacture of large size hollow items which are long-lasting and inexpensive.There is a variety of products that are developed by this process including big water tanks, automobile products, sophisticated shaped medical items, recreation equipment, toys, kayaks, commercial 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 Seymour WI 54165, 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-Seymour-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 Wisconsin 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 Seymour Wisconsin 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 Process Components

This moulding operation has been used since ancient times for creatingvseverl items. Egyptians for example, applied rotocasting procedures in the of ceramics. The Swiss were also employing this rotation type to create hollow chocolate eggs. Some plastic products in the USA were made utilizing this technique some time between 1940 and 1950. Because it was regarded to be a very slow procedure, the method has however taken long to become popular

1. Mold prep work.
A fixed measure of polymer in grain form is packed into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel substance. The coloration needed for the final item 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 design of plastic manufacturing.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then secured and put within the oven.

2. The heating and fusion phase.
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 mould. The turning is done gradually, about 20 revolutions per sixty seconds. One thing that is critical at this moment is the period of time the mould will spend inside the oven. If it stays to long, the product will lose value and strength, generating a faulty product. If it is extracted from the oven too early, the polymer will not have liquefied properly, which develops bubbles in the completed 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 creates a cool mist. When the material cools, it reduces slightly for ease of removal from the mold. This is one more procedure that depends a lot on the ideal timing, since quick cooling decreases the material too fast, causing bending of the product.

4. The un-loading or de-moulding step.
As soon as the product inside te mold has cooled adequately, the molder managing the process can then remove the completed item from the mould. The function is repeated from the start, providing a number of exact products.

For more information on the different rotational molding options offered for the Seymour WI 54165 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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