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

rotomolding-Duffield-Rotational molding refers to a plastic manufacturing method that produces hollow stress-free items. The procedure relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have a wide range of shapes, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing processes in that no pressure is called for. It also has few competitors when it involves the production of sizable hollow products which are resilient and inexpensive.There is a wide range of product lines that are produced by this process including large water tanks, automobile items, intricate designed medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in terms of style and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Duffield VA 24244, 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 Molding-Duffield-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 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 Duffield 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 Process in Detail

This molding system has been used since earlier times for creatingvseverl items. Egyptians for example, utilized rotational molding systems in the producing of ceramics. The Swiss were also applying this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were developed using this approach some time between 1940 and 1950. The process has however taken very long to take affect because it was looked at to be a pretty slow-moving process

1. Mould readying.
A predetermined volume of polymer in grain form is packed into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel component. The color tone preferred for the final 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 design of plastic engineering.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then secured and inserted into the oven.

2. The heating and fusion step.
Once within the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The turning is done slowly and gradually, about 20 rotations per minute. Something that is crucial at this moment is the period of time the mould will spend within the oven. If it overstays, the material will lose stability and strength, making a weak product. If it is taken out from the oven too early, the polymer will not have melted properly, which produces bubbles in the finalized product line.

3. Mould cooling down.
When the component 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 creates a cool mist. When the component cools, it shrinks a little for ease of removal from the mould. This is an additional step that relies a lot on the right timing, since rapid cooling reduces the material too fast, causing bending of the material.

4. The discharging or de-molding step.
As soon as the component within te mould has cooled successfully, the person taking care of the procedure can then take out the completed product from the mould. The process is repeated from the start, making a series of exact items.

For more information on the different rotational rotomolding options offered for the Duffield VA 24244 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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