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

roto-molding-King George-Rotational molding pertains to a plastic manufacturing practice that produces hollow stress-free product lines. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of designs, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this unique from other plastic manufacturing methods in that no pressure is involved. It also has few competitors when it involves the production of sizable hollow products which are long lasting and inexpensive.There is a wide variety of items that are generated by this process including large water tanks, automobile products, complex shaped medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in regards to style and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in King George VA 22485, 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 rotomoulding 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 Manufacturing-King George-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 King George 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 Rotomoulding Procedure in Detail

This moulding process has been used since early times for creatingvseverl product lines. Egyptians for example, applied rotomoulding procedures in the producing of ceramics. The Swiss were also utilizing this rotation design to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this method some time between 1940 and 1950. Since it was considered to be a somewhat slow-moving technique, the method has however taken long to catch on

1. Mould fitting.
A fixed volume of polymer in grain form is filled into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel component. The colour wanted 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 type of plastic production.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then sealed and put inside the oven.

2. The heating up and fusion phase.
Once inside the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The spinning is done gradually, about 20 rotations per sixty seconds. The main thing that is crucial at this moment is the amount of time the mould will spend within the oven. If it stays to long, the component will lose value and durability, producing a faulty product. If it is extracted from the oven prematurely, the polymer will not have melted correctly, which produces bubbles in the finalized item.

3. Mold cooling.
When the product has completely spent the correct 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 shrinks somewhat for ease of removal from the mould. This is another step that relies a lot on the ideal timing, since rapid cooling reduces the material too quick, causing bending of the material.

4. The unloading or de-moulding phase.
When the component inside te mold has cooled properly, the molder handling the operation can then extract the finished product from the mold. The technique is repeated from the start, supplying a number of identical product lines.

For more information on the different rotational rotomolding options offered for the King George VA 22485 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to custom molded

Local Resources

Production Example
Google Map