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

rotational molding-Braymer-Rotational moulding pertains to a plastic production procedure that creates hollow stress-free products. The technique relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have varying designs, sizes and colors. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing methods in that no pressure is required. It also has few rivals when it pertains to the creation of sizable hollow products which are resilient and inexpensive.There is a wide variety of products that are created by this process including big water tanks, automobile materials, intricate molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in terms of design 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 Braymer MO 64624, 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 rotocasting 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-Braymer-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 Braymer 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 molding system has been used since ancient times for creatingvseverl product lines. Egyptians for instance, used rotomoulding solutions in the creating of ceramics. The Swiss were also employing this rotation style to generate hollow chocolate eggs. Some plastic products in the USA were made utilizing this technique some time between 1940 and 1950. The system has however taken very long to take affect because it was thought of to be a very slow process

1. Mold fitting.
A predetermined measure of polymer in powder form is filled into a hollow mold. The mould is usually made from cast aluminium or sheet steel substance. The color preferred for the end 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 format of plastic assembly.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then sealed and inserted within the oven.

2. The heat and fusion procedure.
Once inside the oven, the mold is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done gradually, about 20 spins per min. Something that is critical at this moment is the period of time the mold will spend inside the oven. If it stays to long, the product will lose value and durability, making a poor item. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the finished product line.

3. Mold cooling down.
When the product has sufficiently spent the correct amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it shrinks a little for ease of removal from the mould. This is yet another step that relies a lot on the correct timing, since rapid cooling reduces the material too rapidly, causing bending of the product.

4. The offloading or de-molding step.
Once the component within te mold has cooled effectively, the person managing the process can then take out the finalized product from the mould. The procedure is repeated from the start, providing a series of exact items.

For more information on the different rotational molding options offered for the Braymer MO 64624 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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