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

rotational moulding-Bent Mountain-Rotational moulding refers to a plastic manufacturing method that makes hollow stress-free items. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have many different shapes, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing techniques that no pressure is involved. It also has few competitors when it comes to the manufacture of large hollow products which are resilient and inexpensive.There is a wide variety of products that are created by this process including large size water tanks, automobile items, sophisticated shaped medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in regards to type and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Bent Mountain VA 24059, 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

Custom Molded-Bent Mountain-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 Bent Mountain 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 Process Components

This moulding procedure has been used since early times for creatingvseverl items. Egyptians as an example, applied roto-molding systems in the producing of ceramics. The Swiss were also employing this rotation design to make hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. The system has however taken long to catch on because it was thought of as being a rather slow-moving process

1. Mould fitting.
A fixed 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 color tone needed for the finished goods 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 design of plastic assembly.

Preheating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then secured and inserted within the oven.

2. The heating and fusion process.
Once placed into the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The rotation is done gradually, about 20 rotations per minute. The main thing that is crucial at this moment is the amount of time the mould will spend inside the oven. If it stays to long, the product will lose value and strength, creating a poor item. If it is extracted from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the completed product.

3. Mold cooling down.
When the material has sufficiently spent the correct amount of time in the oven, it is then taken out 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 somewhat for ease of removal from the mould. This is another procedure that depends upon a lot on the right timing, since rapid cooling shrinks the material too rapidly, causing warping of the material.

4. The offloading or de-moulding step.
As soon as the material inside te mould has cooled correctly, the molder handling the operation can then remove the completed product from the mold. The technique is repeated from the beginning, giving a series of exact products.

For more information on the different rotational rotomolding options offered for the Bent Mountain VA 24059 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 plastic molding

Local Resources

Production Example
Google Map