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

rotomoulding-Bedford-Rotational molding pertains to a plastic production practice that produces hollow stress-free products. The process relies on high temperatures and bi axial rotation to come up with seamless, one piece products that have varying forms, colors and sizes. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this unique from other plastic manufacturing methods because no pressure is needed. It also has few rivals when it pertains to the production of sizable hollow products which are long lasting and inexpensive.There is a wide variety of product lines that are produced by this process including big water tanks, automobile materials, intricate molded medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in regards to design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Bedford KY 40006, 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-Bedford-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 Bedford 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 Roto-Molding Method in Detail

This moulding operation has been used since ancient times for creatingvseverl items. Egyptians for example, utilized rotocasting procedures in the of ceramics. The Swiss were also making use of this rotation format to generate hollow chocolate eggs. Some plastic items in the USA were developed utilizing this technique some time between 1940 and 1950. The system has however taken very long to take affect because it was looked at as being a rather slow-moving process

1. Mold fitting.
A predetermined quantity of polymer in grain form is loaded into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel component. The color tone chosen for the final 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 design of plastic assembly.

Preheating 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 put into the oven.

2. The heating up and fusion step.
Once placed into the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The turning is done slowly, about 20 rotations per min. Something that is crucial at this moment is the period of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, generating a weak product. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which creates bubbles in the finished product line.

3. Mould cooling.
When the material has sufficiently spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it reduces somewhat for ease of removal from the mold. This is yet another step that relies a lot on the correct timing, since quick cooling decreases the material too fast, causing bending of the product.

4. The offloading or de-molding step.
As soon as the product inside te mold has cooled correctly, the person handling the procedure can then extract the finalized product from the mould. The technique is repeated from the beginning, providing a number of similar items.

For more information on the different rotational molding options offered for the Bedford KY 40006 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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