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

roto-molding-Dunn Loring-Rotational molding pertains to a plastic production method that produces hollow stress-free products. The process relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have different forms, sizes and colors. This method is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The function that makes this unique from other plastic manufacturing methods because no pressure is called for. It also has few contenders when it involves the production of sizable hollow products which are resilient and inexpensive.There is a wide variety of products that are developed by this process including large size water tanks, automobile items, intricate shaped medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in terms of type 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 Dunn Loring VA 22027, 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

Plastic Molding-Dunn Loring-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 Dunn Loring 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 Components

This moulding system has been used since earlier times for creatingvseverl product lines. Egyptians as an example, employed roto-molding techniques in the of ceramics. The Swiss were also working with this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this procedure some time between 1940 and 1950. The system has however taken long to take affect because it was looked at to be a relatively slow-moving process

1. Mold preparation.
A predetermined amount of polymer in grain form is loaded into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel material. The color tone desired for the final item 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 type of plastic manufacturing.

Preheating 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 sealed and inserted within the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done gradually, about 20 revolutions per minute. Something that is vital at this moment is the amount of time the mold will spend within the oven. If it overstays, the material will lose value and durability, creating a faulty product. If it is extracted from the oven too early, the polymer will not have melted correctly, which creates bubbles in the finished item.

3. Mould cooling.
When the product 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 creates a cool mist. When the product cools, it reduces a little for ease of removal from the mould. This is an additional procedure that depends upon a lot on the ideal timing, since quick cooling shrinks the material too rapidly, causing bending of the item.

4. The discharging or de-moulding step.
When the component inside te mould has cooled properly, the molder taking care of the procedure can then take out the completed product from the mold. The function is repeated from the start, supplying a number of similar products.

For more information on the different rotational rotomolding options offered for the Dunn Loring VA 22027 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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