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

rotational molding-Big Bend-Rotational moulding refers to a plastic manufacturing practice that creates hollow stress-free product lines. The procedure uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a wide range of forms, colors and sizes. This method is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing techniques because no pressure is involved. It also has few contenders when it involves the manufacture of large size hollow products which are resilient and inexpensive.There is a wide variety of products that are generated by this process including large size water tanks, automobile items, sophisticated molded medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in terms of type and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Big Bend WI 53103, 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 roto-molding 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-Big Bend-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 Big Bend 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 Procedure Components

This molding process has been used since earlier times for creatingvseverl items. Egyptians for instance, worked with rotational molding procedures in the manufacturing of ceramics. The Swiss were also applying this rotation technique to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this technique some time between 1940 and 1950. The system has however taken long to take affect because it was thought of to be a somewhat slow process

1. Mold readying.
A predetermined measure of polymer in grain form is loaded into a hollow mould. The mold is usually made from cast aluminium or sheet steel substance. The coloring needed 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 style of plastic production.

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

2. The heating up and fusion step.
Once within the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The turning is done slowly, about 20 revolutions per min. The main thing that is important at this point is the amount of time the mold will spend inside the oven. If it overstays, the material will lose value and durability, generating a faulty item. If it is extracted from the oven too early, the polymer will not have flowed correctly, which generates bubbles in the finalized product line.

3. Mold cooling.
When the product has sufficiently spent the right 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 generates a cool mist. When the product cools, it reduces slightly for ease of extraction from the mold. This is another step that depends upon a lot on the ideal timing, since quick cooling shrinks the material too fast, causing warping of the item.

4. The offloading or de-molding step.
As soon as the material within te mold has cooled successfully, the person taking care of the procedure can then extract the finished product from the mold. The procedure is repeated from the start, making a series of identical items.

For more information on the different rotational molding options offered for the Big Bend WI 53103 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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