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

rotational moulding-Gower-Rotational molding pertains to a plastic production procedure that produces hollow stress-free items. The function relies on high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying designs, sizes and colors. This method is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing procedures because no pressure is needed. It also has few rivals when it comes down to the manufacture of large hollow products which are long lasting and inexpensive.There is a variety of items that are produced by this process including large size water tanks, automobile items, complex shaped medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the versatility in regards to style 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 Gower MO 64454, 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

Plastic Manufacturing-Gower-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 Gower 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 Procedure Components

This moulding operation has been used since ancient times for creatingvseverl items. Egyptians for example, employed rotomoulding techniques in the producing of ceramics. The Swiss were also applying this rotation format to make hollow chocolate eggs. Some plastic items in the USA were developed using this approach some time between 1940 and 1950. Considering that it was viewed to be a relatively slow approach, the process has however taken long to become popular

1. Mould preparation.
A predetermined measure of polymer in grain form is filled into a hollow mould. The mould is usually made from cast aluminium or sheet steel component. The color chosen for the finished product 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 to temperatures between 500-700F. The mould with the powdered polymer is then locked and installed within the oven.

2. The heating and fusion phase.
Once within the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The turning is done slowly, about 20 rotations per min. The main thing that is critical at this point is the amount of time the mold will spend within the oven. If it stays to long, the material will lose stability and durability, producing a poor product. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finalized item.

3. Mold cooling.
When the material has completely spent the right amount 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 creates a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mould. This is an additional procedure that depends upon a lot on the correct timing, since quick cooling shrinks the material too fast, causing warping of the item.

4. The offloading or de-molding step.
When the product inside te mould has cooled correctly, the person taking care of the operation can then extract the finished item from the mold. The process is repeated from the start, giving a number of identical items.

For more information on the different rotational molding options offered for the Gower MO 64454 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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