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

roto-molding-Bristow-Rotational molding pertains to a plastic production technique that makes hollow stress-free items. The procedure uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have various shapes, sizes and colors. This technique is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing methods that no pressure is called for. It also has few competitors when it comes to the production of large hollow items which are resilient and inexpensive.There is a variety of products that are developed by this process including big water tanks, automobile products, complex molded medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the flexibility in terms of style and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Bristow VA 20136, 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

Custom Molding-Bristow-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 Bristow 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 in Detail

This molding process has been used since earlier times for creatingvseverl items. Egyptians as an example, utilized rotomoulding solutions in the creating of ceramics. The Swiss were also utilizing this rotation technique to generate hollow chocolate eggs. Some plastic items in the USA were manufactured using this technique some time between 1940 and 1950. The system has however taken long to catch on because it was considered to be a moderately slow-moving process

1. Mold preparation.
A predetermined quantity of polymer in particle form is loaded into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel substance. The coloring desired for the finished goods is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic engineering.

Preheating of the oven follows, and it may 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 installed into the oven.

2. The heat and fusion procedure.
Once within 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 turning is done slowly, about 20 revolutions per sixty seconds. The main thing that is essential at this moment is the period of time the mold will spend within the oven. If it stays to long, the material will lose stability and durability, making a poor item. If it is extracted from the oven too early, the polymer will not have melted correctly, which creates bubbles in the completed product line.

3. Mold cooling.
When the product has sufficiently spent the enough of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces somewhat for ease of removal from the mold. This is an additional step that relies a lot on the correct timing, since quick cooling shrinks the material too quick, causing warping of the product.

4. The discharging or de-molding step.
Once the component inside te mold has cooled adequately, the molder managing the operation can then remove the finished item from the mold. The procedure is repeated from the start, making a number of exact items.

For more information on the different rotational rotomolding options offered for the Bristow VA 20136 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 manufacturing

Local Resources

Production Example
Google Map