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

rotational moulding-Sophia-Rotational moulding pertains to a plastic production method that produces hollow stress-free products. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have various designs, sizes and colors. This method is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The component that makes this unique from other plastic manufacturing methods in that no pressure is called for. It also has few contenders when it comes down to the production of large size hollow items which are long-lasting and inexpensive.There is a wide variety of products that are produced by this process including large size water tanks, automobile materials, sophisticated shaped medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in regards to style and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Sophia WV 25921, 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 rotocasting 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 Products-Sophia-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 West Virginia 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 Sophia West Virginia 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 Components

This moulding system has been used since early times for creatingvseverl items. Egyptians for example, worked with rotational molding solutions in the manufacturing of ceramics. The Swiss were also working with this rotation type to make hollow chocolate eggs. Some plastic products in the USA were made utilizing this method some time between 1940 and 1950. The procedure has however taken long to catch on because it was considered as being a rather slow process

1. Mold preparation.
A fixed measure of polymer in particle form is loaded into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel substance. The color tone needed for the final goods 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 style of plastic assembly.

Preheating of the oven follows, and it can 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 locked and positioned inside the oven.

2. The heating and fusion process.
Once within the oven, the mold is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly, about 20 rotations per min. The main thing that is essential at this moment is the period of time the mould will spend within the oven. If it overstays, the component will lose stability and durability, generating a weak product. If it is removed from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the completed item.

3. Mold cooling.
When the component has sufficiently spent the right 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 creates a cool mist. When the product cools, it reduces somewhat for ease of removal from the mould. This is another procedure that relies a lot on the correct timing, since quick cooling decreases the material too fast, causing warping of the item.

4. The offloading or de-molding phase.
When the component inside te mould has cooled successfully, the molder taking care of the procedure can then extract the completed product from the mold. The procedure is repeated from the start, making a series of similar products.

For more information on the different rotational rotomolding options offered for the Sophia WV 25921 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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