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

rotational moulding-Iola-Rotational moulding refers to a plastic production solution that generates hollow stress-free products. The procedure relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have different forms, colors and sizes. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing techniques because no pressure is called for. It also has few competitors when it comes to the production of large size hollow items which are durable and inexpensive.There is a wide variety of product lines that are created by this process including big water tanks, automobile materials, intricate shaped medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Iola WI 54945, 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 rotocasting 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-Iola-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 Iola 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 Method Components

This molding system has been used since early times for creatingvseverl product lines. Egyptians for instance, worked with rotocasting systems in the making of ceramics. The Swiss were also applying this rotation type to make hollow chocolate eggs. Some plastic items in the USA were created using this method some time between 1940 and 1950. Considering that it was considered to be a somewhat slow-moving method, the technique has however taken long to catch on

1. Mould fitting.
A fixed quantity of polymer in particle form is packed into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel component. The colour intended for the final 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 format of plastic assembly.

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 secured and installed inside the oven.

2. The heating and fusion process.
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 rotation is done gradually, about 20 revolutions per minute. The main thing that is critical at this moment is the amount of time the mould will spend inside the oven. If it stays to long, the material will lose stability and durability, generating a poor product. If it is removed from the oven too early, the polymer will not have liquefied properly, which develops bubbles in the finished product line.

3. Mold cooling down.
When the component has sufficiently spent the right amount of time in the oven, it is then taken out 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 shrinks somewhat for ease of extraction from the mold. This is one more step that depends upon a lot on the ideal timing, since quick cooling reduces the material too rapidly, causing warping of the item.

4. The offloading or de-molding phase.
Once the component inside te mould has cooled correctly, the molder managing the process can then take out the finalized product from the mould. The function is repeated from the beginning, supplying a number of similar items.

For more information on the different rotational molding options offered for the Iola WI 54945 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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