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

rotational moulding-Russellville-Rotational molding pertains to a plastic manufacturing procedure that makes hollow stress-free items. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different designs, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing processes in that no pressure is needed. It also has few rivals when it comes to the creation of sizable 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 products, sophisticated shaped medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in terms of design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Russellville KY 42276, 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 Molded-Russellville-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 Kentucky 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 Russellville Kentucky 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 Components

This moulding process has been used since early times for creatingvseverl product lines. Egyptians for example, employed rotocasting systems in the manufacturing of ceramics. The Swiss were also utilizing this rotation approach to generate hollow chocolate eggs. Some plastic items in the USA were manufactured using this technique some time between 1940 and 1950. The process has however taken very long to catch on because it was considered as being a somewhat slow-moving process

1. Mold readying.
A fixed volume of polymer in grain form is filled into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel substance. The color tone wanted 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 type of plastic manufacturing.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and inserted within the oven.

2. The heating up and fusion phase.
Once inside the oven, the mould is rotated 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 rotations per sixty seconds. Something that is vital at this point is the amount of time the mould will spend within the oven. If it overstays, the component will lose value and durability, creating a poor product. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finished product line.

3. Mould cooling.
When the material has sufficiently spent the correct amount of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it shrinks somewhat for ease of removal from the mold. This is yet another procedure that depends upon a lot on the correct timing, since rapid cooling reduces the material too quickly, causing warping of the product.

4. The offloading or de-moulding step.
When the product inside te mould has cooled adequately, the person managing the process can then extract the finished product from the mold. The procedure is repeated from the start, giving a number of similar products.

For more information on the different rotational molding options offered for the Russellville KY 42276 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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