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

rotational molding-Cross Plains-Rotational molding pertains to a plastic production technique that produces hollow stress-free product lines. The function relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different shapes, colors and sizes. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing processes that no pressure is needed. It also has few competitors when it comes to the creation of large size hollow items which are resilient and inexpensive.There is a wide variety of products that are generated by this process including big water tanks, automobile materials, intricate molded medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in regards to 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 Cross Plains WI 53528, 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 Molding-Cross Plains-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 Cross Plains 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 in Detail

This moulding process has been used since ancient times for creatingvseverl products. Egyptians for example, used roto-molding solutions in the making of ceramics. The Swiss were also utilizing this rotation technique to create hollow chocolate eggs. Some plastic products in the USA were created utilizing this method some time between 1940 and 1950. The technique has however taken long to catch on because it was considered to be a rather slow-moving process

1. Mould fitting.
A predetermined measure of polymer in particle form is packed into a hollow mould. The mould is usually made of cast aluminium or sheet steel material. The color tone needed for the finished product 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 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 mould with the powdered polymer is then secured and placed into the oven.

2. The heating and fusion step.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 spins per sixty seconds. Something that is critical at this moment is the amount of time the mould will spend inside the oven. If it overstays, the component will lose value and durability, making a poor item. If it is taken out from the oven too early, the polymer will not have melted correctly, which generates bubbles in the finalized product.

3. Mould cooling.
When the component has completely spent the enough of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks somewhat for ease of extraction from the mould. This is one more procedure that relies a lot on the ideal timing, since rapid cooling reduces the material too fast, causing warping of the material.

4. The offloading or de-molding step.
Once the product inside te mold has cooled effectively, the molder handling the process can then take out the finalized product from the mould. The process is repeated from the start, supplying a number of exact items.

For more information on the different rotational molding options offered for the Cross Plains WI 53528 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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