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

rotomoulding-Weston-Rotational molding pertains to a plastic manufacturing practice that generates hollow stress-free items. The function utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have different shapes, colors and sizes. This technique is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The function that makes this different from other plastic manufacturing procedures in that no pressure is required. It also has few contenders when it pertains to the production of large size hollow items which are durable and inexpensive.There is a wide range of products that are generated by this process including large size water tanks, automobile materials, complex shaped medical items, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in terms of design and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Weston WV 26452, 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 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

Plastic Molding-Weston-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 Weston 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 moulding operation has been used since earlier times for creatingvseverl product lines. Egyptians as an example, applied roto-molding techniques in the producing of ceramics. The Swiss were also making use of this rotation design to make hollow chocolate eggs. Some plastic products in the USA were created utilizing this technique some time between 1940 and 1950. The procedure has however taken long to take affect because it was considered as being a relatively slow-moving process

1. Mold preparation.
A predetermined quantity of polymer in grain form is filled into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel material. The coloring chosen for the final product is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic manufacturing.

Pre-heating 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 secured and placed inside the oven.

2. The heat and fusion phase.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly, about 20 revolutions per min. One thing that is crucial at this moment is the period of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, creating a faulty product. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finished product line.

3. Mold cooling.
When the product has completely spent the right amount 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 creates a cool mist. When the material cools, it reduces slightly for ease of removal from the mold. This is one more measure that depends a lot on the correct timing, since rapid cooling decreases the material too fast, causing warping of the product.

4. The un-loading or de-moulding step.
When the component within te mould has cooled effectively, the molder handling the process can then take out the finalized item from the mould. The technique is repeated from the start, supplying a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Weston WV 26452 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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