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

rotational molding-Pickens-Rotational moulding pertains to a plastic production practice that produces hollow stress-free product lines. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have different designs, sizes and colors. This method is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing methods in that no pressure is required. It also has few rivals when it comes down to the manufacture of large hollow items which are durable and inexpensive.There is a wide variety of product lines that are created by this process including large water tanks, automobile materials, sophisticated molded medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in terms of design 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 Pickens SC 29671, 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

Plastic Products-Pickens-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 Pickens 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 Process Components

This molding method has been used since earlier times for creatingvseverl product lines. Egyptians for instance, utilized roto-molding solutions in the creating of ceramics. The Swiss were also utilizing this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this method some time between 1940 and 1950. The process has however taken very long to catch on because it was thought of as being a very slow process

1. Mold prep work.
A fixed amount of polymer in grain form is filled into a hollow mould. The mold is usually built from cast aluminium or sheet steel substance. The color tone preferred for the final item is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic production.

Pre-heating 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 mould with the powdered polymer is then secured and inserted into the oven.

2. The heating up and fusion phase.
Once placed into the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done slowly, about 20 spins per min. One thing that is vital at this point is the amount of time the mold will spend inside the oven. If it stays to long, the material will lose value and strength, generating a poor product. If it is removed from the oven prematurely, the polymer will not have flowed properly, which creates bubbles in the completed product.

3. Mold cooling down.
When the product has completely spent the correct amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the material cools, it shrinks slightly for ease of removal from the mold. This is yet another measure that relies a lot on the ideal timing, since rapid cooling reduces the material too quick, causing warping of the material.

4. The discharging or de-moulding phase.
Once the component inside te mold has cooled effectively, the person handling the procedure can then extract the finished item from the mould. The technique is repeated from the beginning, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the Pickens SC 29671 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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