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

rotomoulding-Alderson-Rotational molding pertains to a plastic manufacturing practice that produces hollow stress-free product lines. The method utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have varying designs, sizes and colors. This technique is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing procedures that no pressure is called for. It also has few contenders when it comes to the manufacture of large hollow items which are long-lasting and inexpensive.There is a wide range of products that are created by this process including large water tanks, automobile items, complex designed medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in regards to design 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 Alderson WV 24910, 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 roto-molding 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-Alderson-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 Alderson 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 Procedure in Detail

This moulding operation has been used since earlier times for creatingvseverl items. Egyptians as an example, worked with rotocasting solutions in the of ceramics. The Swiss were also working with this rotation approach to generate hollow chocolate eggs. Some plastic items in the USA were made using this procedure some time between 1940 and 1950. Because it was considered to be a relatively slow-moving system, the procedure has however taken long to catch on

1. Mold preparation.
A fixed quantity of polymer in particle form is packed into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel component. The color chosen for the final product 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 manufacturing.

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 locked and positioned into the oven.

2. The heating and fusion process.
Once placed into the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done gradually, about 20 rotations per sixty seconds. One thing that is crucial at this point is the period of time the mould will spend within the oven. If it overstays, the material will lose value and durability, producing a weak item. If it is removed from the oven too early, the polymer will not have melted correctly, which develops bubbles in the finalized product.

3. Mould cooling.
When the material has sufficiently spent the correct amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mold. This is yet another procedure that depends a lot on the correct timing, since rapid cooling shrinks the material too rapidly, causing bending of the item.

4. The un-loading or de-moulding step.
When the product within te mold has cooled adequately, the person taking care of the operation can then extract the completed product from the mould. The function is repeated from the beginning, giving a number of exact products.

For more information on the different rotational rotomolding options offered for the Alderson WV 24910 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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