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

rotomolding-Cordova-Rotational molding refers to a plastic manufacturing method that generates hollow stress-free items. The procedure utilizes high temperatures and bi axial rotation to follow up with seamless, one piece items that have several designs, sizes and colors. This procedure is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing processes that no pressure is needed. It also has few competitors when it pertains to the creation of sizable hollow items which are resilient and inexpensive.There is a wide variety of products that are created by this process including large size water tanks, automobile products, intricate molded medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in terms of style 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 Cordova TN 38018, 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 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 Manufacturing-Cordova-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 Cordova 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 Rotomoulding Procedure in Detail

This moulding operation has been used since early times for creatingvseverl items. Egyptians for example, employed rotomoulding systems in the of ceramics. The Swiss were also making use of this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were made using this method some time between 1940 and 1950. Due to the fact that it was viewed to be a very slow-moving procedure, the technique has however taken long to catch on

1. Mould fitting.
A predetermined measure of polymer in powder form is filled into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel substance. The coloring needed for the end item 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 heated up to temperatures between 500-700F. The mold with the powdered polymer is then secured and put within the oven.

2. The heat and fusion step.
Once inside the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The turning is done slowly and gradually, about 20 revolutions per min. The main thing that is vital at this point is the amount of time the mould will spend within the oven. If it overstays, the material will lose value and durability, generating a faulty item. If it is taken out from the oven too early, the polymer will not have melted correctly, which develops bubbles in the completed product.

3. Mold cooling down.
When the material has completely spent the right 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 component cools, it reduces somewhat for ease of removal from the mould. This is an additional measure that depends a lot on the ideal timing, since quick cooling decreases the material too quick, causing bending of the material.

4. The unloading or de-moulding phase.
As soon as the component within te mould has cooled adequately, the molder taking care of the process can then remove the completed product from the mold. The process is repeated from the start, providing a number of identical items.

For more information on the different rotational molding options offered for the Cordova TN 38018 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