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

rotational molding-Woodbridge-Rotational molding refers to a plastic manufacturing technique that makes hollow stress-free product lines. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of designs, sizes and colors. This method 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 because no pressure is called for. It also has few contenders when it comes to the creation of large size hollow items which are durable and inexpensive.There is a wide variety of products that are developed by this process including large size water tanks, automobile materials, intricate molded medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in terms of design 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 Woodbridge VA 22191, 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

Custom Molded-Woodbridge-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 Woodbridge 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 technique has been used since earlier times for creatingvseverl product lines. Egyptians for instance, employed rotocasting methods in the making of ceramics. The Swiss were also working with this rotation technique to create hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. The procedure has however taken very long to take affect because it was thought of to be a very slow process

1. Mould preparation.
A fixed quantity of polymer in grain form is packed into a hollow mould. The mold is usually made from cast aluminium or sheet steel substance. The color chosen 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 style of plastic production.

Preheating of the oven follows, 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 installed into the oven.

2. The heat and fusion process.
Once within the oven, the mold is rotated 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. Something that is essential at this point is the period of time the mold will spend inside the oven. If it overstays, the material will lose value and strength, making a faulty product. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which develops bubbles in the completed item.

3. Mold 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 product cools, it reduces a little for ease of extraction from the mold. This is one more procedure that depends upon a lot on the correct timing, since rapid cooling shrinks the material too quickly, causing bending of the material.

4. The offloading or de-molding phase.
When the component within te mould has cooled effectively, the person handling the procedure can then extract the finalized product from the mould. The process is repeated from the beginning, providing a series of exact products.

For more information on the different rotational rotomolding options offered for the Woodbridge VA 22191 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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