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

rotational moulding-Point Pleasant-Rotational moulding refers to a plastic production practice that produces hollow stress-free product lines. The procedure depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a wide range of shapes, sizes and colors. This procedure is also called roto-molding 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 that no pressure is needed. It also has few contenders when it comes to the creation of large hollow products which are long-lasting and inexpensive.There is a wide range of product lines that are generated by this process including large size water tanks, automobile products, complex designed medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of design 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 Point Pleasant WV 25550, 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 rotomolding 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-Point Pleasant-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 Point Pleasant 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 in Detail

This molding technique has been used since ancient times for creatingvseverl product lines. Egyptians as an example, used rotomoulding techniques in the making of ceramics. The Swiss were also employing this rotation design to generate hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this technique some time between 1940 and 1950. The system has however taken very long to catch on because it was thought of to be a very slow process

1. Mold preparation.
A predetermined amount of polymer in particle form is loaded into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel component. The color tone chosen for the end 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 format of plastic assembly.

Preheating of the oven follows, and it can 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 sealed and inserted inside the oven.

2. The heat and fusion process.
Once placed into the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The turning is done slowly and gradually, about 20 spins per min. The main thing that is vital at this point is the period of time the mold will spend inside the oven. If it overstays, the product will lose value and strength, creating a poor item. If it is removed from the oven too early, the polymer will not have flowed properly, which generates bubbles in the finalized product.

3. Mould cooling down.
When the material has sufficiently spent the enough 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 generates a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mould. This is another step that depends upon a lot on the right timing, since rapid cooling reduces the material too quick, causing warping of the item.

4. The offloading or de-moulding step.
Once the component inside te mold has cooled effectively, the molder taking care of the procedure can then extract the finished product from the mold. The process is repeated from the beginning, supplying a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Point Pleasant WV 25550 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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