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

rotational moulding-Myrtle-Rotational molding refers to a plastic manufacturing procedure that generates hollow stress-free products. The method uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have a variety of designs, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The component that makes this unique from other plastic manufacturing methods that no pressure is involved. It also has few rivals when it pertains to the creation of large hollow items which are durable and inexpensive.There is a wide variety of products that are produced by this process including large size water tanks, automobile products, complex shaped medical items, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in terms of type 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 Myrtle MO 65778, 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-Myrtle-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 Missouri 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 Myrtle Missouri 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 Components

This moulding technique has been used since ancient times for creatingvseverl products. Egyptians for instance, employed rotocasting solutions in the producing of ceramics. The Swiss were also making use of this rotation method to make hollow chocolate eggs. Some plastic products in the USA were made utilizing this method some time between 1940 and 1950. Since it was thought of to be a rather slow approach, the approach has however taken long to catch on

1. Mold readying.
A fixed volume of polymer in grain form is filled into a hollow mold. The mold is usually made from cast aluminium or sheet steel component. The coloring chosen for the finished item 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 design of plastic manufacturing.

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 locked and installed within the oven.

2. The heat and fusion procedure.
Once within the oven, the mold is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The spinning is done gradually, about 20 spins per minute. Something that is critical at this point is the period of time the mold will spend within the oven. If it overstays, the product will lose value and strength, producing a weak product. If it is removed from the oven too early, the polymer will not have liquefied correctly, which creates bubbles in the finalized product.

3. Mold cooling.
When the product has completely spent the correct 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 shrinks a little for ease of removal from the mould. This is an additional procedure that depends a lot on the correct timing, since quick cooling decreases the material too fast, causing warping of the material.

4. The unloading or de-moulding phase.
Once the product inside te mold has cooled properly, the molder handling the process can then take out the completed product from the mould. The function is repeated from the start, giving a number of identical product lines.

For more information on the different rotational molding options offered for the Myrtle MO 65778 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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