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

rotocasting-Warner Springs-Rotational molding refers to a plastic production practice that produces hollow stress-free products. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different shapes, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing processes in that no pressure is needed. It also has few competitors when it comes to the production of sizable hollow items which are durable and inexpensive.There is a wide range of items that are created by this process including large size water tanks, automobile items, 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 makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Warner Springs CA 92086, 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 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

Custom Molding-Warner Springs-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 California 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 Warner Springs California 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 Method in Detail

This moulding method has been used since early times for creatingvseverl product lines. Egyptians as an example, worked with rotocasting methods in the of ceramics. The Swiss were also employing this rotation type to generate hollow chocolate eggs. Some plastic items in the USA were made using this method some time between 1940 and 1950. The process has however taken very long to take affect because it was looked at to be a relatively slow process

1. Mold prep work.
A predetermined amount of polymer in powder form is loaded into a hollow mould. The mould is usually made from cast aluminium or sheet steel component. The color needed for the end product 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 engineering.

Pre-heating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and placed into the oven.

2. The heating up and fusion process.
Once inside the oven, the mold is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done gradually, about 20 revolutions per sixty seconds. Something that is vital at this point is the amount of time the mold will spend inside the oven. If it overstays, the product will lose value and durability, producing a poor item. If it is removed from the oven too early, the polymer will not have flowed properly, which produces bubbles in the completed product.

3. Mould cooling down.
When the product has sufficiently spent the enough of time in the oven, it is then taken out 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 shrinks somewhat for ease of extraction from the mould. This is another step that depends a lot on the ideal timing, since quick cooling shrinks the material too quickly, causing bending of the product.

4. The offloading or de-moulding step.
As soon as the material inside te mould has cooled adequately, the person managing the process can then take out the finished item from the mold. The process is repeated from the start, making a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Warner Springs CA 92086 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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