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

rotational moulding-Monticello-Rotational moulding pertains to a plastic manufacturing technique that creates hollow stress-free products. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have different forms, sizes and colors. This technique is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing techniques in that no pressure is called for. It also has few contenders when it comes to the creation of sizable hollow items which are durable and inexpensive.There is a wide variety of product lines that are developed by this process including large water tanks, automobile products, complex shaped medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in terms of style and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Monticello WI 53570, 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

Plastic Molding-Monticello-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 Monticello 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 in Detail

This molding operation has been used since earlier times for creatingvseverl products. Egyptians for instance, worked with rotocasting systems in the of ceramics. The Swiss were also using this rotation approach to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this technique some time between 1940 and 1950. Given that it was thought of to be a very slow approach, the process has however taken long to become popular

1. Mould readying.
A predetermined quantity of polymer in grain form is packed into a hollow mould. The mould is usually made of cast aluminium or sheet steel substance. The color tone wanted for the final product 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 format of plastic assembly.

Preheating of the oven follows, and it can 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 sealed and placed inside the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done gradually, about 20 revolutions per sixty seconds. The main thing that is important at this point is the period of time the mold will spend inside the oven. If it stays to long, the product will lose stability and durability, making a poor product. If it is removed from the oven prematurely, the polymer will not have flowed properly, which creates bubbles in the finished product.

3. Mold cooling.
When the material has completely spent the enough of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mold. This is yet another measure that depends a lot on the right timing, since quick cooling reduces the material too rapidly, causing bending of the material.

4. The un-loading or de-moulding phase.
Once the material within te mould has cooled effectively, the molder handling the operation can then take out the finished product from the mold. The procedure is repeated from the start, giving a series of exact products.

For more information on the different rotational molding options offered for the Monticello WI 53570 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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