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

rotomolding-Johnsonville-Rotational molding pertains to a plastic manufacturing procedure that generates hollow stress-free product lines. The procedure utilizes high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of shapes, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing processes because no pressure is involved. It also has few rivals when it pertains to the manufacture of large size hollow products which are durable and inexpensive.There is a wide variety of product lines that are produced by this process including big water tanks, automobile products, complex molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of design 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 Johnsonville SC 29555, 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

Custom Molding-Johnsonville-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 Johnsonville 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 Rotomoulding Process in Detail

This moulding method has been used since ancient times for creatingvseverl products. Egyptians as an example, used roto-molding systems in the of ceramics. The Swiss were also making use of this rotation style to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this method some time between 1940 and 1950. Since it was regarded to be a somewhat slow-moving process, the system has however taken long to catch on

1. Mould preparation.
A predetermined volume of polymer in powder form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel component. The coloration desired 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 style of plastic engineering.

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

2. The heating and fusion procedure.
Once inside 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 turning is done gradually, about 20 spins per sixty seconds. The main thing that is essential at this point is the amount of time the mould will spend within the oven. If it stays to long, the component will lose value and durability, generating a faulty product. If it is removed from the oven too early, the polymer will not have melted properly, which creates bubbles in the finalized item.

3. Mould cooling.
When the component has sufficiently spent the enough of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it shrinks a little for ease of extraction from the mould. This is an additional procedure that relies a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing bending of the material.

4. The unloading or de-molding step.
When the component within te mold has cooled successfully, the person handling the procedure can then extract the completed product from the mould. The procedure is repeated from the beginning, providing a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Johnsonville SC 29555 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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