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

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

The benefit that makes this different from other plastic manufacturing processes in that no pressure is called for. It also has few rivals when it comes to the creation of large size hollow products which are long-lasting and inexpensive.There is a variety of items that are created by this process including large water tanks, automobile products, sophisticated molded medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Bolivar TN 38008, 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-Bolivar-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 Bolivar 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 Rotomolding Method in Detail

This molding process has been used since earlier times for creatingvseverl product lines. Egyptians for instance, utilized rotomoulding solutions in the producing of ceramics. The Swiss were also utilizing this rotation method to make hollow chocolate eggs. Some plastic items in the USA were created utilizing this procedure some time between 1940 and 1950. The system has however taken very long to take affect because it was looked at as being a somewhat slow process

1. Mold prep work.
A fixed amount of polymer in particle form is packed into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel substance. The color chosen for the final product 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 format of plastic assembly.

Preheating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then sealed and positioned inside the oven.

2. The heat and fusion process.
Once placed into the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done slowly, about 20 revolutions per minute. Something that is vital at this moment is the period of time the mold will spend inside the oven. If it overstays, the product will lose value and durability, generating a faulty item. If it is taken out from the oven prematurely, the polymer will not have melted correctly, which creates bubbles in the finished item.

3. Mould cooling.
When the component has sufficiently 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 product cools, it reduces somewhat for ease of removal from the mould. This is an additional procedure that depends upon a lot on the right timing, since rapid cooling decreases the material too rapidly, causing warping of the item.

4. The offloading or de-moulding phase.
Once the material within te mould has cooled correctly, the person managing the process can then remove the completed item from the mould. The function is repeated from the start, supplying a series of identical product lines.

For more information on the different rotational molding options offered for the Bolivar TN 38008 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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