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

rotational moulding-Mount Hope-Rotational moulding refers to a plastic manufacturing method that creates hollow stress-free product lines. The process depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have a wide range of designs, sizes and colors. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing methods that no pressure is called for. It also has few contenders when it involves the creation of large hollow products which are resilient and inexpensive.There is a variety of products that are developed by this process including large size water tanks, automobile items, intricate molded medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in terms of style and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Mount Hope WV 25880, 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 Manufacturing-Mount Hope-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 Mount Hope 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 technique has been used since earlier times for creatingvseverl products. Egyptians for instance, worked with rotocasting solutions in the producing of ceramics. The Swiss were also working with this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this approach some time between 1940 and 1950. Since it was thought of to be a somewhat slow technique, the technique has however taken long to catch on

1. Mold prep work.
A fixed amount of polymer in powder form is packed into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel substance. The coloration wanted for the finished 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 type of plastic engineering.

Preheating of the oven starts, and it can 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 secured and put into the oven.

2. The heating up and fusion step.
Once within the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The spinning is done gradually, about 20 rotations per sixty seconds. Something that is critical at this moment is the period of time the mold will spend within the oven. If it overstays, the material will lose value and strength, making a faulty item. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the completed item.

3. Mold cooling down.
When the component has completely 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 generates a cool mist. When the product cools, it shrinks somewhat for ease of removal from the mould. This is yet another procedure that relies a lot on the right timing, since rapid cooling decreases the material too rapidly, causing bending of the product.

4. The unloading or de-molding phase.
When the product within te mold has cooled effectively, the person managing the operation can then take out the finished product from the mould. The process is repeated from the start, providing a series of exact products.

For more information on the different rotational rotomolding options offered for the Mount Hope WV 25880 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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