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

rotocasting-Grantville-Rotational moulding pertains to a plastic production method that produces hollow stress-free product lines. The method relies upon high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various shapes, sizes and colors. This method is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing procedures that no pressure is called for. It also has few contenders when it comes to the manufacture of sizable hollow items which are long lasting and inexpensive.There is a wide variety of product lines that are created by this process including large size water tanks, automobile products, complex shaped medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in regards to design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Grantville GA 30220, 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 rotomolding 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 Manufacturing-Grantville-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 Grantville 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 Rotomoulding Method in Detail

This molding process has been used since early times for creatingvseverl products. Egyptians for instance, utilized rotational molding techniques in the manufacturing of ceramics. The Swiss were also using this rotation technique to generate hollow chocolate eggs. Some plastic items in the USA were developed utilizing this method some time between 1940 and 1950. The technique has however taken long to catch on because it was considered as being a very slow-moving process

1. Mould fitting.
A fixed measure of polymer in powder form is packed into a hollow mould. The mould is usually made of cast aluminium or sheet steel component. The colour chosen 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 design of plastic manufacturing.

Pre-heating of the oven starts, 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 locked and placed into the oven.

2. The heating and fusion procedure.
Once within the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The turning is done slowly, about 20 spins per minute. The main thing that is important at this moment is the period of time the mould will spend inside the oven. If it overstays, the material will lose value and durability, creating a faulty product. If it is removed from the oven too early, the polymer will not have flowed properly, which generates bubbles in the finished item.

3. Mold cooling down.
When the product has sufficiently spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it shrinks a little for ease of removal from the mould. This is yet another step that depends a lot on the right timing, since rapid cooling decreases the material too rapidly, causing warping of the product.

4. The removing or de-moulding step.
As soon as the component within te mold has cooled correctly, the person taking care of the process can then take out the finished item from the mold. The technique is repeated from the beginning, providing a number of identical product lines.

For more information on the different rotational molding options offered for the Grantville GA 30220 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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