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

rotational molding-Greer-Rotational molding pertains to a plastic manufacturing practice that generates hollow stress-free products. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have different shapes, colors and sizes. This technique is also known as 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 techniques in that no pressure is required. It also has few competitors when it pertains to the creation of large size hollow products which are resilient and inexpensive.There is a variety of products that are developed by this process including large size water tanks, automobile materials, intricate molded medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of style and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Greer SC 29650, 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 rotational moulding 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-Greer-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 Greer 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 Method Components

This molding process has been used since early times for creatingvseverl products. Egyptians for example, utilized rotocasting systems in the creating of ceramics. The Swiss were also utilizing this rotation format to create hollow chocolate eggs. Some plastic products in the USA were created utilizing this technique some time between 1940 and 1950. The technique has however taken long to catch on because it was thought of as being a relatively slow process

1. Mould preparation.
A fixed volume of polymer in grain form is loaded into a hollow mould. The mould is usually made from cast aluminium or sheet steel component. The colour wanted for the end 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 style of plastic assembly.

Pre-heating 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 sealed and put into the oven.

2. The heat and fusion procedure.
Once placed into the oven, the mold is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The rotation is done gradually, about 20 revolutions per minute. One thing that is essential at this moment is the period of time the mould will spend inside the oven. If it overstays, the component will lose value and strength, making a weak product. If it is taken out from the oven too early, the polymer will not have flowed properly, which develops bubbles in the finalized product.

3. Mold cooling.
When the component has sufficiently spent the right 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 component cools, it reduces somewhat for ease of removal from the mould. This is yet another procedure that relies a lot on the ideal timing, since quick cooling shrinks the material too quick, causing warping of the material.

4. The un-loading or de-moulding step.
Once the product inside te mould has cooled adequately, the person taking care of the procedure can then take out the finished product from the mold. The technique is repeated from the beginning, giving a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Greer SC 29650 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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