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

rotomolding-Swansea-Rotational molding pertains to a plastic manufacturing technique that makes hollow stress-free products. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece products that have many different forms, colors and sizes. This technique 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 methods in that no pressure is required. It also has few contenders when it comes down to the production of large size hollow items which are durable and inexpensive.There is a wide variety of items that are produced by this process including big water tanks, automobile items, intricate molded medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in regards to style 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 Swansea SC 29160, 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

Plastic Molding-Swansea-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 South Carolina 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 Swansea South Carolina 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 moulding operation has been used since early times for creatingvseverl products. Egyptians as an example, used roto-molding methods in the making of ceramics. The Swiss were also working with this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were made using this procedure some time between 1940 and 1950. Since it was viewed to be a fairly slow process, the system has however taken long to become popular

1. Mould prep work.
A predetermined quantity of polymer in grain form is filled into a hollow mould. The mould is usually made from cast aluminium or sheet steel component. The coloring preferred for the finished item is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic assembly.

Preheating of the oven follows, and it can 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 inside the oven.

2. The heat and fusion procedure.
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 turning is done gradually, about 20 revolutions per minute. Something that is crucial at this moment is the amount of time the mould will spend inside the oven. If it overstays, the product will lose stability and strength, generating a faulty product. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which generates bubbles in the finalized product.

3. Mold cooling.
When the product has completely spent the correct amount 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 creates a cool mist. When the material cools, it reduces a little for ease of extraction from the mould. This is another procedure that relies a lot on the correct timing, since quick cooling shrinks the material too rapidly, causing warping of the product.

4. The offloading or de-moulding step.
When the product within te mold has cooled correctly, the molder handling the operation can then remove the finished product from the mould. The technique is repeated from the beginning, supplying a number of exact products.

For more information on the different rotational rotomolding options offered for the Swansea SC 29160 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic products

Local Resources

Production Example
Google Map