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

rotational moulding-Stockbridge-Rotational molding pertains to a plastic manufacturing technique that generates hollow stress-free products. The function utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have a wide range of shapes, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this unique from other plastic manufacturing procedures because no pressure is involved. It also has few competitors when it comes down to the production of large size hollow items which are durable and inexpensive.There is a wide range of items that are developed by this process including large size water tanks, automobile materials, intricate molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is due to 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 Stockbridge WI 53088, 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 Molded-Stockbridge-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 Stockbridge 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 Method Components

This molding operation has been used since earlier times for creatingvseverl products. Egyptians for instance, employed rotomoulding systems in the making of ceramics. The Swiss were also employing this rotation type to create hollow chocolate eggs. Some plastic items in the USA were manufactured using this approach some time between 1940 and 1950. Given that it was thought of to be a very slow system, the method has however taken long to catch on

1. Mold preparation.
A predetermined quantity of polymer in particle form is loaded into a hollow mold. The mold is usually made of cast aluminium or sheet steel material. The color needed 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 style of plastic production.

Preheating of the oven starts, 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 secured and installed into the oven.

2. The heat and fusion procedure.
Once inside the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per sixty seconds. One thing that is important at this moment is the period of time the mold will spend inside the oven. If it overstays, the component will lose value and durability, generating a weak item. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which creates bubbles in the completed product.

3. Mould cooling.
When the component has sufficiently spent the correct 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 a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is another step that depends a lot on the ideal timing, since rapid cooling reduces the material too fast, causing bending of the material.

4. The removing or de-moulding phase.
As soon as the material inside te mould has cooled properly, the person managing the process can then remove the finished item from the mold. The function is repeated from the beginning, making a number of identical products.

For more information on the different rotational molding options offered for the Stockbridge WI 53088 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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