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

rotocasting-Troy-Rotational molding refers to a plastic manufacturing procedure that generates hollow stress-free products. The process relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have various designs, colors and sizes. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing methods because no pressure is involved. It also has few competitors when it pertains to the creation of sizable hollow products which are long-lasting and inexpensive.There is a wide variety of products that are generated by this process including large water tanks, automobile products, complex shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to type and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Troy VA 22974, 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 rotomolding 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 Products-Troy-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 Troy 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 Components

This moulding method has been used since earlier times for creatingvseverl items. Egyptians as an example, worked with rotational molding systems in the manufacturing of ceramics. The Swiss were also working with this rotation design to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this approach some time between 1940 and 1950. Given that it was regarded to be a rather slow method, the system has however taken long to catch on

1. Mold prep work.
A predetermined amount of polymer in particle form is filled into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel material. The coloration needed for the final goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic assembly.

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 sealed and inserted within the oven.

2. The heat and fusion process.
Once inside the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The spinning is done slowly, about 20 revolutions per minute. One thing that is important at this moment is the period of time the mould will spend within the oven. If it stays to long, the material will lose stability and strength, making a weak product. If it is extracted from the oven too early, the polymer will not have flowed correctly, which generates bubbles in the finished product.

3. Mould cooling.
When the product has sufficiently 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 product cools, it reduces slightly for ease of extraction from the mould. This is yet another step that depends a lot on the ideal timing, since quick cooling decreases the material too quick, causing warping of the product.

4. The removing or de-molding phase.
When the product inside te mould has cooled successfully, the molder handling the process can then extract the finished item from the mold. The procedure is repeated from the start, supplying a number of identical products.

For more information on the different rotational rotomolding options offered for the Troy VA 22974 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