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

rotomolding-Eagle Rock-Rotational molding pertains to a plastic production method that creates 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 varying designs, sizes and colors. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The component that makes this unique from other plastic manufacturing processes because no pressure is involved. It also has few competitors when it comes down to the creation of large size hollow products which are resilient and inexpensive.There is a wide variety of product lines that are produced by this process including large size water tanks, automobile materials, intricate shaped medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of type and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Eagle Rock MO 65641, 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 rotomoulding 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-Eagle Rock-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 Eagle Rock 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 Roto-Molding Procedure Components

This molding process has been used since ancient times for creatingvseverl products. Egyptians for instance, employed rotational molding techniques in the creating of ceramics. The Swiss were also working with this rotation approach to make hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this procedure some time between 1940 and 1950. Given that it was thought of to be a relatively slow-moving approach, the method has however taken long to catch on

1. Mold preparation.
A fixed quantity of polymer in powder form is filled into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel substance. The color tone preferred for the final goods 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 type of plastic assembly.

Preheating of the oven starts, 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 secured and inserted inside the oven.

2. The heating and fusion step.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The turning is done gradually, about 20 rotations per minute. One thing that is essential at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the material will lose value and strength, creating a faulty product. If it is removed from the oven too early, the polymer will not have flowed properly, which creates bubbles in the finalized product.

3. Mold cooling.
When the component has sufficiently spent the right 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 component cools, it reduces somewhat for ease of extraction from the mould. This is another procedure that depends a lot on the right timing, since rapid cooling decreases the material too quick, causing bending of the product.

4. The removing or de-moulding step.
As soon as the component within te mold has cooled successfully, the person handling the procedure can then take out the completed item from the mold. The function is repeated from the start, making a number of exact products.

For more information on the different rotational molding options offered for the Eagle Rock MO 65641 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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