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

rotocasting-Preston-Rotational molding refers to a plastic manufacturing technique that generates hollow stress-free products. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece items that have several designs, colors and sizes. This procedure is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing techniques in that no pressure is required. It also has few competitors when it involves the production of large size hollow items which are long-lasting and inexpensive.There is a variety of product lines that are generated by this process including large size water tanks, automobile items, sophisticated shaped medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in terms of type and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Preston GA 31824, 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-Preston-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 Georgia 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 Preston Georgia 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 molding method has been used since earlier times for creatingvseverl items. Egyptians for example, worked with rotomoulding solutions in the creating of ceramics. The Swiss were also utilizing this rotation format to generate hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. The technique has however taken long to catch on because it was looked at as being a very slow-moving process

1. Mould fitting.
A predetermined quantity of polymer in grain form is loaded into a hollow mould. The mold is usually built from cast aluminium or sheet steel substance. The coloring preferred for the finished product is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic engineering.

Preheating of the oven follows, 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 sealed and positioned into the oven.

2. The heat and fusion procedure.
Once within the oven, the mould is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per sixty seconds. One thing that is important at this point is the period of time the mould will spend within the oven. If it overstays, the material will lose value and durability, making a poor product. If it is removed from the oven too early, the polymer will not have melted properly, which generates bubbles in the finished product.

3. Mould cooling.
When the component has sufficiently 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 a cool mist. When the component cools, it shrinks slightly for ease of extraction from the mould. This is another procedure that relies a lot on the right timing, since quick cooling shrinks the material too fast, causing warping of the material.

4. The removing or de-moulding phase.
Once the component within te mould has cooled successfully, the person taking care of the process can then extract the completed item from the mould. The function is repeated from the start, providing a series of similar product lines.

For more information on the different rotational molding options offered for the Preston GA 31824 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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