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

rotomoulding-Silex-Rotational moulding pertains to a plastic production method that makes hollow stress-free items. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have several forms, sizes and colors. This technique is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing processes that no pressure is needed. It also has few rivals when it involves the production of large size hollow items which are durable and inexpensive.There is a variety of items that are created by this process including big water tanks, automobile materials, sophisticated molded medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in regards to design and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Silex MO 63377, 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 Molding-Silex-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 Silex 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 Process Components

This molding process has been used since early times for creatingvseverl product lines. Egyptians for example, employed rotational molding solutions in the making of ceramics. The Swiss were also using this rotation design to create hollow chocolate eggs. Some plastic items in the USA were developed 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 rather slow-moving process

1. Mold preparation.
A fixed amount of polymer in particle form is packed into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel substance. The color needed for the final product 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 format of plastic engineering.

Pre-heating of the oven starts, and it can 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 secured and inserted within the oven.

2. The heating and fusion phase.
Once within 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 spinning is done slowly, about 20 revolutions per minute. Something that is essential at this point is the period of time the mould will spend within the oven. If it stays to long, the material will lose value and durability, producing a weak product. If it is removed from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finalized item.

3. Mould cooling.
When the component has completely spent the enough 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 a cool mist. When the component cools, it shrinks slightly for ease of removal from the mould. This is another measure that depends upon a lot on the right timing, since rapid cooling shrinks the material too quick, causing warping of the item.

4. The offloading or de-molding phase.
When the component inside te mold has cooled correctly, the molder taking care of the operation can then remove the completed item from the mould. The procedure is repeated from the start, giving a series of exact product lines.

For more information on the different rotational molding options offered for the Silex MO 63377 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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