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

rotomoulding-Ooltewah-Rotational molding refers to a plastic production practice that creates hollow stress-free items. The process depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a wide range of forms, sizes and colors. This technique is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing methods that no pressure is needed. It also has few competitors when it pertains to the creation of large size hollow items which are long-lasting and inexpensive.There is a variety of items that are produced by this process including large size water tanks, automobile items, complex designed medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in terms of type and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Ooltewah TN 37363, 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 roto-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-Ooltewah-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 Ooltewah 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 procedure has been used since earlier times for creatingvseverl products. Egyptians as an example, applied rotational molding solutions in the producing of ceramics. The Swiss were also using this rotation technique to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this approach some time between 1940 and 1950. Given that it was viewed to be a relatively slow approach, the approach has however taken long to become popular

1. Mould prep work.
A predetermined measure of polymer in particle form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel substance. The coloration needed for the finished goods is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic engineering.

Pre-heating 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 secured and placed inside the oven.

2. The heating up and fusion process.
Once inside the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done slowly, about 20 revolutions per min. The main thing that is vital at this moment is the period of time the mould will spend within the oven. If it overstays, the component will lose stability and strength, producing a weak item. If it is extracted from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the completed item.

3. Mold cooling.
When the material has completely spent the correct amount 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 product cools, it shrinks slightly for ease of removal from the mould. This is one more measure that depends upon a lot on the ideal timing, since quick cooling decreases the material too quickly, causing bending of the material.

4. The unloading or de-moulding step.
Once the product inside te mould has cooled adequately, the person taking care of the operation can then take out the finished item from the mold. The function is repeated from the beginning, giving a number of identical product lines.

For more information on the different rotational molding options offered for the Ooltewah TN 37363 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 plastic molding

Local Resources

Production Example
Google Map