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

rotational molding-Fairmont-Rotational molding pertains to a plastic manufacturing technique that makes hollow stress-free items. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have various forms, colors and sizes. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing techniques that no pressure is needed. It also has few rivals when it involves the creation of large size hollow products which are resilient and inexpensive.There is a variety of products that are created by this process including big water tanks, automobile products, complex designed medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of design and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Fairmont WV 26554, 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

Plastic Products-Fairmont-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 Fairmont 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 Roto-Molding Procedure in Detail

This molding process has been used since earlier times for creatingvseverl items. Egyptians for instance, applied rotocasting solutions in the manufacturing of ceramics. The Swiss were also using this rotation format to generate hollow chocolate eggs. Some plastic products in the USA were created using this technique some time between 1940 and 1950. Given that it was regarded to be a basically slow approach, the procedure has however taken long to become popular

1. Mold readying.
A predetermined measure of polymer in powder form is filled into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel material. The colour preferred for the end item is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic production.

Pre-heating of the oven follows, and it may 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 locked and put inside the oven.

2. The heating and fusion phase.
Once inside the oven, the mold is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done slowly, about 20 rotations per sixty seconds. The main thing that is vital at this point is the period of time the mould will spend within the oven. If it stays to long, the material will lose value and strength, creating a poor product. If it is removed from the oven too early, the polymer will not have melted properly, which develops bubbles in the finalized item.

3. Mold cooling.
When the product 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 a cool mist. When the component cools, it shrinks slightly for ease of removal from the mold. This is one more procedure that depends a lot on the correct timing, since rapid cooling decreases the material too quick, causing warping of the material.

4. The un-loading or de-molding phase.
When the material inside te mold has cooled properly, the molder taking care of the procedure can then remove the finalized item from the mold. The process is repeated from the beginning, making a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Fairmont WV 26554 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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