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

roto-molding-Oconto-Rotational moulding refers to a plastic production practice that generates hollow stress-free items. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have various forms, colors and sizes. This technique is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The function that makes this unique from other plastic manufacturing techniques because no pressure is required. It also has few rivals when it involves the creation of sizable hollow items which are durable and inexpensive.There is a wide variety of product lines that are generated by this process including big water tanks, automobile items, sophisticated molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in terms of style and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Oconto WI 54153, 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

Plastic Products-Oconto-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 Oconto 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 Rotomoulding Process Components

This molding procedure has been used since early times for creatingvseverl items. Egyptians as an example, used rotocasting methods in the of ceramics. The Swiss were also utilizing this rotation method to make hollow chocolate eggs. Some plastic products in the USA were developed using this approach some time between 1940 and 1950. The system has however taken very long to take affect because it was thought of as being a somewhat slow-moving process

1. Mold preparation.
A predetermined quantity of polymer in grain form is filled into a hollow mould. The mould is usually made from cast aluminium or sheet steel substance. The coloring intended 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 style of plastic production.

Pre-heating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then sealed and installed into the oven.

2. The heating and fusion process.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The turning is done slowly, about 20 revolutions per minute. Something that is essential at this moment is the amount of time the mould will spend within the oven. If it stays to long, the product will lose stability and strength, generating a faulty product. If it is extracted from the oven too early, the polymer will not have melted correctly, which develops bubbles in the completed product.

3. Mould cooling.
When the component has completely spent the right amount 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 creates a cool mist. When the product cools, it reduces slightly for ease of removal from the mold. This is yet another procedure that depends upon a lot on the correct timing, since rapid cooling shrinks the material too quick, causing warping of the product.

4. The discharging or de-molding phase.
When the component inside te mold has cooled properly, the molder managing the procedure can then take out the finished product from the mold. The function is repeated from the start, providing a number of identical product lines.

For more information on the different rotational molding options offered for the Oconto WI 54153 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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