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

rotational moulding-Wilton-Rotational molding refers to a plastic production technique that generates hollow stress-free product lines. The procedure utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying shapes, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The function that makes this unique from other plastic manufacturing processes because no pressure is called for. It also has few competitors when it comes down to the manufacture of sizable hollow products which are resilient and inexpensive.There is a variety of product lines that are generated by this process including big water tanks, automobile products, complex molded medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in regards to type and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Wilton CA 95693, 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-Wilton-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 Wilton 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 Roto-Molding Procedure in Detail

This molding process has been used since earlier times for creatingvseverl product lines. Egyptians for instance, utilized rotocasting solutions in the producing of ceramics. The Swiss were also working with this rotation design to generate hollow chocolate eggs. Some plastic items in the USA were made using this procedure some time between 1940 and 1950. The technique has however taken very long to take affect because it was looked at to be a very slow process

1. Mold prep work.
A predetermined measure of polymer in grain form is loaded into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel material. The color tone wanted for the final 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 design of plastic engineering.

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 into the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The spinning is done slowly, about 20 revolutions per sixty seconds. Something that is crucial at this moment is the period of time the mold will spend inside the oven. If it stays to long, the material will lose value and durability, producing a weak item. If it is removed from the oven too early, the polymer will not have melted properly, which produces bubbles in the completed product.

3. Mold cooling down.
When the component has sufficiently spent the enough of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it shrinks a little 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 bending of the item.

4. The removing or de-molding step.
Once the product within te mold has cooled correctly, the person handling the procedure can then extract the finished product from the mould. The function is repeated from the beginning, providing a number of similar products.

For more information on the different rotational rotomolding options offered for the Wilton CA 95693 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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