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

rotomolding-Bells-Rotational moulding refers to a plastic production practice that generates hollow stress-free products. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various designs, sizes and colors. This method is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The feature that makes this different from other plastic manufacturing techniques because no pressure is called for. It also has few competitors when it comes down to the manufacture of large hollow products which are resilient and inexpensive.There is a variety of product lines that are produced by this process including large size water tanks, automobile items, complex shaped medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is because of the versatility in terms of type and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Bells TN 38006, 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 rotational moulding 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-Bells-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 Tennessee 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 Bells Tennessee 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 system has been used since ancient times for creatingvseverl products. Egyptians for example, applied rotomoulding systems in the producing of ceramics. The Swiss were also using this rotation design to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this technique some time between 1940 and 1950. The procedure has however taken long to catch on because it was thought of to be a pretty slow-moving process

1. Mold prep work.
A predetermined volume of polymer in grain form is loaded into a hollow mould. The mould is usually made of cast aluminium or sheet steel substance. The color preferred for the finished product 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 design of plastic manufacturing.

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

2. The heating and fusion procedure.
Once inside the oven, the mold is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done gradually, about 20 revolutions per min. The main thing that is essential at this moment is the period of time the mould will spend within the oven. If it overstays, the component will lose value and strength, making a poor item. If it is taken out from the oven too early, the polymer will not have flowed properly, which develops bubbles in the finished product line.

3. Mould cooling.
When the component has completely spent the correct 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 generates a cool mist. When the material cools, it shrinks somewhat for ease of removal from the mould. This is yet another measure that relies a lot on the correct timing, since rapid cooling reduces the material too fast, causing warping of the product.

4. The offloading or de-moulding step.
Once the product inside te mold has cooled effectively, the person managing the operation can then extract the finished item from the mold. The technique is repeated from the beginning, providing a number of exact items.

For more information on the different rotational molding options offered for the Bells TN 38006 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to custom molded

Local Resources

Production Example
Google Map