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

rotomoulding-Clayton-Rotational moulding pertains to a plastic production method that produces hollow stress-free products. The method uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have different shapes, sizes and colors. This procedure is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing processes that no pressure is required. It also has few rivals when it comes down to the manufacture of large size hollow products which are durable and inexpensive.There is a wide range of product lines that are generated by this process including big water tanks, automobile products, sophisticated molded medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility 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 Clayton CA 94517, 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 rotomoulding 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-Clayton-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 Clayton 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 Process Components

This moulding method has been used since early times for creatingvseverl products. Egyptians as an example, employed rotational molding solutions in the producing of ceramics. The Swiss were also utilizing this rotation type to make hollow chocolate eggs. Some plastic product lines in the USA were made using this technique some time between 1940 and 1950. The system has however taken very long to take affect because it was looked at as being a relatively slow-moving process

1. Mold preparation.
A predetermined amount of polymer in particle form is filled into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel material. The colour needed for the end product 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 style of plastic manufacturing.

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

2. The heating and fusion phase.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done slowly, about 20 revolutions per sixty seconds. Something that is vital at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the material will lose value and durability, generating a poor item. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which creates bubbles in the finished item.

3. Mould cooling down.
When the component has completely spent the correct amount 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 shrinks a little for ease of removal from the mold. This is yet another measure that relies a lot on the ideal timing, since rapid cooling decreases the material too quickly, causing warping of the material.

4. The offloading or de-molding phase.
Once the product within te mould has cooled adequately, the molder managing the procedure can then take out the finalized item from the mould. The technique is repeated from the start, providing a series of exact product lines.

For more information on the different rotational rotomolding options offered for the Clayton CA 94517 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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