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

rotational molding-Mc Kenzie-Rotational molding refers to a plastic production method that creates hollow stress-free products. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece items that have varying forms, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The function that makes this different from other plastic manufacturing processes because no pressure is called for. It also has few competitors when it pertains to the production of large size hollow products which are resilient and inexpensive.There is a variety of products that are developed by this process including big water tanks, automobile materials, intricate molded medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility 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 Mc Kenzie TN 38201, 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

Plastic Molding-Mc Kenzie-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 Mc Kenzie 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 moulding technique has been used since ancient times for creatingvseverl items. Egyptians as an example, worked with rotational molding techniques in the manufacturing of ceramics. The Swiss were also using this rotation design to make hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. The system has however taken very long to catch on because it was looked at to be a moderately slow-moving process

1. Mould readying.
A predetermined volume of polymer in powder form is filled into a hollow mould. The mold is usually made of cast aluminium or sheet steel substance. The color tone chosen for the end goods is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format 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 mould with the powdered polymer is then sealed and positioned inside the oven.

2. The heating up and fusion process.
Once within the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The spinning is done slowly and gradually, about 20 revolutions per min. One thing that is important at this point is the amount of time the mould will spend within the oven. If it stays to long, the component will lose stability and strength, creating a faulty item. If it is removed from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finalized product.

3. Mould cooling down.
When the product has sufficiently spent the enough 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 creates a cool mist. When the component cools, it shrinks slightly for ease of extraction from the mould. This is another measure that relies a lot on the ideal timing, since quick cooling reduces the material too rapidly, causing warping of the item.

4. The un-loading or de-molding phase.
When the product inside te mould has cooled properly, the person taking care of the procedure can then extract the finished item from the mold. The procedure is repeated from the beginning, supplying a number of identical product lines.

For more information on the different rotational molding options offered for the Mc Kenzie TN 38201 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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