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

roto-molding-Twin Bridges-Rotational moulding pertains to a plastic production method that creates hollow stress-free products. The process uses high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of forms, sizes and colors. This method is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing procedures that no pressure is needed. It also has few competitors when it comes to the manufacture of large size hollow items which are durable and inexpensive.There is a wide range of items that are developed by this process including big water tanks, automobile items, complex designed medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in regards to design and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Twin Bridges MT 59754, 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 Manufacturing-Twin Bridges-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 Montana 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 Twin Bridges Montana 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 Method in Detail

This moulding method has been used since early times for creatingvseverl products. Egyptians for example, worked with roto-molding systems in the manufacturing of ceramics. The Swiss were also employing this rotation approach to create hollow chocolate eggs. Some plastic products in the USA were created using this technique some time between 1940 and 1950. The system has however taken very long to take affect because it was considered to be a very slow-moving process

1. Mould readying.
A predetermined quantity of polymer in particle form is loaded into a hollow mold. The mould is usually made of cast aluminium or sheet steel component. The colour intended for the end goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic assembly.

Preheating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and put into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The turning is done gradually, about 20 revolutions per min. One thing that is vital at this point is the amount of time the mold will spend within the oven. If it stays to long, the component will lose stability and durability, generating a poor product. If it is extracted from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the finished item.

3. Mold cooling.
When the component has completely 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 generates a cool mist. When the material cools, it reduces a little for ease of removal from the mould. This is one more measure that relies a lot on the right timing, since quick cooling reduces the material too rapidly, causing warping of the item.

4. The offloading or de-molding phase.
Once the product within te mould has cooled successfully, the person handling the procedure can then take out the finalized item from the mold. The procedure is repeated from the start, making a number of similar items.

For more information on the different rotational rotomolding options offered for the Twin Bridges MT 59754 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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