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

rotomoulding-Campbellsville-Rotational molding pertains to a plastic manufacturing procedure that generates hollow stress-free products. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have various designs, colors and sizes. This method is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing techniques in that no pressure is involved. It also has few rivals when it pertains to the production of sizable hollow items which are long-lasting and inexpensive.There is a variety of items that are generated by this process including big water tanks, automobile materials, complex designed medical products, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in terms of style 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 Campbellsville KY 42718, 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

Custom Molding-Campbellsville-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 Campbellsville 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 Rotomolding Process in Detail

This molding system has been used since earlier times for creatingvseverl product lines. Egyptians for instance, utilized rotocasting techniques in the manufacturing of ceramics. The Swiss were also making use of this rotation technique to generate hollow chocolate eggs. Some plastic products in the USA were developed using this procedure some time between 1940 and 1950. The technique has however taken very long to catch on because it was thought of as being a very slow process

1. Mould preparation.
A fixed volume of polymer in particle form is packed into a hollow mold. The mold is usually made of cast aluminium or sheet steel material. The coloring preferred for the final goods 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 design of plastic production.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then secured and placed within the oven.

2. The heating up and fusion procedure.
Once inside the oven, the mold is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done slowly and gradually, about 20 rotations per min. Something that is vital at this point is the period of time the mold will spend within the oven. If it stays to long, the component will lose stability and strength, generating a poor item. If it is removed from the oven too early, the polymer will not have flowed correctly, which produces bubbles in the finalized product line.

3. Mold cooling.
When the component has sufficiently spent the right amount of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the component cools, it reduces slightly for ease of removal from the mold. This is another procedure that depends upon a lot on the right timing, since rapid cooling reduces the material too fast, causing warping of the product.

4. The unloading or de-moulding step.
When the material within te mold has cooled adequately, the molder handling the operation can then extract the finished product from the mold. The technique is repeated from the start, giving a series of identical product lines.

For more information on the different rotational molding options offered for the Campbellsville KY 42718 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 manufacturing

Local Resources

Production Example
Google Map