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

rotational moulding-Ducor-Rotational moulding refers to a plastic production procedure that generates hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece products that have different forms, sizes and colors. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The function that makes this unique from other plastic manufacturing methods because no pressure is called for. It also has few contenders when it comes to the manufacture of large hollow products which are durable and inexpensive.There is a wide variety of product lines that are produced by this process including large water tanks, automobile products, complex shaped medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in terms of style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Ducor CA 93218, 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

Plastic Manufacturing-Ducor-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 Ducor 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 molding process has been used since early times for creatingvseverl products. Egyptians for example, employed rotocasting procedures in the manufacturing of ceramics. The Swiss were also using this rotation method to generate hollow chocolate eggs. Some plastic items in the USA were created utilizing this method some time between 1940 and 1950. Given that it was viewed to be a rather slow method, the approach has however taken long to become popular

1. Mold prep work.
A predetermined measure of polymer in particle form is packed into a hollow mould. The mold is usually made of cast aluminium or sheet steel substance. The color desired for the final item 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 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 mold with the powdered polymer is then sealed and positioned within the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould 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 rotations per sixty seconds. One thing that is essential at this moment is the period of time the mould will spend inside the oven. If it stays to long, the material will lose value and durability, making a faulty item. If it is taken out from the oven too early, the polymer will not have flowed properly, which generates bubbles in the finalized product.

3. Mould cooling down.
When the product has completely spent the correct amount 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 reduces slightly for ease of removal from the mold. This is another step that depends a lot on the right timing, since rapid cooling shrinks the material too fast, causing warping of the material.

4. The un-loading or de-moulding phase.
As soon as the product within te mould has cooled properly, the person managing the process can then extract the finalized product from the mold. 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 Ducor CA 93218 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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