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

rotational molding-Pine River-Rotational moulding refers to a plastic production practice that produces hollow stress-free items. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece items that have many different shapes, sizes and colors. This method is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing processes that no pressure is called for. It also has few competitors when it comes to the manufacture of large size hollow products which are long-lasting and inexpensive.There is a variety of items that are developed by this process including large water tanks, automobile materials, sophisticated shaped medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in regards to design 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 Pine River WI 54965, 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

Custom Molded-Pine River-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 Pine River 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 Procedure Components

This molding process has been used since early times for creatingvseverl product lines. Egyptians for instance, employed rotomoulding methods in the producing of ceramics. The Swiss were also applying this rotation design to generate hollow chocolate eggs. Some plastic products in the USA were manufactured using this approach some time between 1940 and 1950. Due to the fact that it was viewed to be a very slow-moving method, the technique has however taken long to become popular

1. Mold preparation.
A predetermined quantity of polymer in grain form is loaded into a hollow mould. The mould is usually made from cast aluminium or sheet steel substance. The color intended for the finished item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic engineering.

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 mold with the powdered polymer is then locked and placed inside the oven.

2. The heating and fusion step.
Once placed into the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per min. Something that is essential at this moment is the amount of time the mould will spend within the oven. If it overstays, the material will lose stability and durability, generating a poor product. If it is extracted from the oven too early, the polymer will not have melted properly, which develops bubbles in the finalized product.

3. Mould cooling down.
When the component has completely spent the correct amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it shrinks slightly for ease of extraction from the mould. This is one more procedure that depends a lot on the ideal timing, since quick cooling reduces the material too rapidly, causing warping of the material.

4. The offloading or de-moulding step.
As soon as the material inside te mold has cooled adequately, the person taking care of the operation can then take out the finalized item from the mould. The procedure is repeated from the start, making a series of similar products.

For more information on the different rotational molding options offered for the Pine River WI 54965 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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