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

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

The benefit that makes this different from other plastic manufacturing processes in that no pressure is required. It also has few rivals when it pertains to the creation of large size hollow items which are durable and inexpensive.There is a wide range of items that are generated by this process including big water tanks, automobile items, sophisticated shaped medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of style and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Raymore MO 64083, 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

Plastic Molding-Raymore-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 Raymore 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 Method Components

This molding method has been used since early times for creatingvseverl products. Egyptians for example, worked with rotomoulding systems in the producing of ceramics. The Swiss were also employing this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this method some time between 1940 and 1950. The process has however taken long to take affect because it was thought of as being a somewhat slow-moving process

1. Mold prep work.
A fixed quantity of polymer in grain form is packed into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel material. The color intended for the end 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 format 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 secured and installed within the oven.

2. The heat and fusion phase.
Once within the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done gradually, about 20 revolutions per min. Something that is vital at this point is the period of time the mold will spend inside the oven. If it stays to long, the material will lose stability and durability, making a poor item. If it is removed from the oven too early, the polymer will not have melted properly, which develops bubbles in the finalized item.

3. Mold cooling down.
When the product has completely spent the correct amount 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 creates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mould. This is yet another procedure that depends upon a lot on the right timing, since quick cooling decreases the material too quick, causing bending of the material.

4. The un-loading or de-moulding step.
Once the material within te mold has cooled adequately, the person taking care of the operation can then take out the finalized product from the mold. The function is repeated from the beginning, providing a series of identical product lines.

For more information on the different rotational molding options offered for the Raymore MO 64083 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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