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

rotomolding-Fennimore-Rotational moulding pertains to a plastic production solution that makes hollow stress-free products. The function uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have a variety of shapes, sizes and colors. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing methods in that no pressure is called for. It also has few rivals when it comes down to the manufacture of large size hollow products which are resilient and inexpensive.There is a wide range of items that are produced by this process including big water tanks, automobile items, sophisticated designed medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Fennimore WI 53809, 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

Plastic Manufacturing-Fennimore-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 Fennimore 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 Roto-Molding Procedure in Detail

This moulding method has been used since earlier times for creatingvseverl products. Egyptians as an example, worked with rotational molding procedures in the producing of ceramics. The Swiss were also making use of this rotation style to make hollow chocolate eggs. Some plastic items in the USA were created using this procedure some time between 1940 and 1950. Given that it was looked at to be a basically slow technique, the method has however taken long to become popular

1. Mould prep work.
A fixed measure of polymer in grain form is packed into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel material. The coloring intended for the final item 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 format of plastic assembly.

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

2. The heat and fusion process.
Once placed into the oven, the mold is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The rotation is done slowly and gradually, about 20 spins per sixty seconds. Something that is critical at this point is the period of time the mold will spend inside the oven. If it overstays, the material will lose value and durability, producing a poor product. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which generates bubbles in the finalized product.

3. Mold cooling.
When the component has completely spent the enough of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mould. This is yet another procedure that depends a lot on the ideal timing, since quick cooling decreases the material too quickly, causing bending of the product.

4. The offloading or de-molding step.
As soon as the product within te mold has cooled successfully, the person managing the process can then take out the completed product from the mold. The function is repeated from the beginning, making a series of exact product lines.

For more information on the different rotational molding options offered for the Fennimore WI 53809 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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