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

rotomoulding-Freeport-Rotational moulding pertains to a plastic manufacturing technique that creates hollow stress-free products. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have different designs, colors and sizes. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The feature that makes this different from other plastic manufacturing processes because no pressure is called for. It also has few contenders when it comes down to the manufacture of large hollow items which are long lasting and inexpensive.There is a wide range of products that are generated by this process including large water tanks, automobile products, intricate designed medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to type and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Freeport IL 61032, 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

Custom Molded-Freeport-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 Illinois 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 Freeport Illinois 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 Process Components

This moulding method has been used since earlier times for creatingvseverl product lines. Egyptians as an example, employed rotocasting solutions in the of ceramics. The Swiss were also making use of this rotation design to make hollow chocolate eggs. Some plastic items in the USA were made using this approach some time between 1940 and 1950. Due to the fact that it was considered to be a somewhat slow-moving method, the procedure has however taken long to become popular

1. Mould prep work.
A fixed volume of polymer in particle form is loaded into a hollow mold. The mold is usually made of cast aluminium or sheet steel substance. The color tone desired 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 type of plastic engineering.

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

2. The heating and fusion phase.
Once placed into the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly, about 20 revolutions per sixty seconds. Something that is critical at this point is the amount of time the mold will spend within the oven. If it stays to long, the material will lose value and durability, creating a faulty product. If it is taken out from the oven too early, the polymer will not have flowed correctly, which produces bubbles in the finished item.

3. Mold cooling down.
When the material has completely spent the enough 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 generates a cool mist. When the product cools, it reduces slightly for ease of removal from the mold. This is yet another procedure that depends a lot on the ideal timing, since rapid cooling shrinks the material too fast, causing warping of the product.

4. The offloading or de-moulding step.
When the product within te mould has cooled effectively, the molder taking care of the operation can then remove the completed item from the mould. The technique is repeated from the beginning, supplying a number of identical products.

For more information on the different rotational molding options offered for the Freeport IL 61032 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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