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

rotocasting-Rainelle-Rotational molding refers to a plastic production solution that makes hollow stress-free items. The technique utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have a variety of forms, sizes and colors. This procedure is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing procedures that no pressure is involved. It also has few competitors when it involves the production of sizable hollow products 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 products, complex shaped medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in regards to type 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 Rainelle WV 25962, 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-Rainelle-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 Rainelle 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 Method Components

This molding process has been used since ancient times for creatingvseverl product lines. Egyptians for example, worked with roto-molding solutions in the producing of ceramics. The Swiss were also applying this rotation technique to make hollow chocolate eggs. Some plastic items in the USA were created using this approach some time between 1940 and 1950. The system has however taken long to catch on because it was considered as being a rather slow-moving process

1. Mold fitting.
A fixed quantity of polymer in grain form is filled into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel material. The coloration wanted for the finished 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 manufacturing.

Preheating 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 mold with the powdered polymer is then sealed and placed inside the oven.

2. The heat and fusion step.
Once within the oven, the mold is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done slowly, about 20 spins per min. One thing that is vital at this point is the amount of time the mould will spend inside the oven. If it overstays, the component will lose stability and strength, making a poor item. If it is removed from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finished product line.

3. Mold cooling down.
When the component has sufficiently spent the correct 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 creates a cool mist. When the component cools, it reduces slightly for ease of removal from the mold. This is an additional procedure that relies a lot on the right timing, since quick cooling shrinks the material too fast, causing bending of the material.

4. The offloading or de-moulding phase.
Once the component within te mould has cooled successfully, the molder managing the process can then extract the finalized product from the mold. The process is repeated from the start, providing a number of identical items.

For more information on the different rotational rotomolding options offered for the Rainelle WV 25962 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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