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

rotocasting-Peace Valley-Rotational molding refers to a plastic production technique that creates hollow stress-free product lines. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have a wide range of designs, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing techniques in that no pressure is involved. It also has few competitors when it pertains to the creation of large size hollow products which are long lasting and inexpensive.There is a variety of product lines that are generated by this process including large size water tanks, automobile products, complex molded medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in terms of style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Peace Valley MO 65788, 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-Peace Valley-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 Peace Valley 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 earlier times for creatingvseverl product lines. Egyptians for example, worked with roto-molding solutions in the producing of ceramics. The Swiss were also working with this rotation method to make hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this technique some time between 1940 and 1950. The process has however taken long to take affect because it was looked at to be a rather slow process

1. Mold readying.
A fixed volume of polymer in grain form is packed into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel component. The color intended for the finished goods 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 format of plastic assembly.

Preheating 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 locked and positioned inside the oven.

2. The heat and fusion process.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly, about 20 revolutions per minute. One thing that is vital at this moment is the period of time the mold will spend within the oven. If it overstays, the component will lose value and strength, producing a faulty product. If it is removed from the oven prematurely, the polymer will not have melted properly, which develops bubbles in the finalized item.

3. Mold cooling down.
When the component has sufficiently spent the enough 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 a cool mist. When the material cools, it reduces somewhat for ease of removal from the mould. This is an additional step that depends upon a lot on the correct timing, since rapid cooling reduces the material too quickly, causing warping of the product.

4. The discharging or de-molding step.
When the component inside te mold has cooled correctly, the molder handling the procedure can then extract the completed product from the mould. The function is repeated from the start, making a number of identical products.

For more information on the different rotational molding options offered for the Peace Valley MO 65788 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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