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

rotomoulding-Spring Valley-Rotational molding refers to a plastic production method that makes hollow stress-free items. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of shapes, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The function that makes this different from other plastic manufacturing techniques in that no pressure is needed. It also has few competitors when it involves the production of large size hollow items which are long-lasting and inexpensive.There is a wide range of items that are created by this process including large size water tanks, automobile products, intricate molded medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in terms of style and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Spring Valley CA 91976, 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

Plastic Products-Spring Valley-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 Spring Valley 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 Rotomoulding Process in Detail

This molding process has been used since ancient times for creatingvseverl items. Egyptians for example, employed rotocasting solutions in the making of ceramics. The Swiss were also applying this rotation format to generate hollow chocolate eggs. Some plastic products in the USA were created using this method some time between 1940 and 1950. Given that it was viewed to be a rather slow-moving method, the procedure has however taken long to become popular

1. Mould preparation.
A predetermined amount of polymer in grain form is loaded into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel material. The coloration chosen for the final goods 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 starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then locked and inserted inside the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done slowly, about 20 spins per sixty seconds. One thing that is vital at this point is the amount of time the mould will spend within the oven. If it stays to long, the product will lose value and durability, creating a weak product. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the completed product.

3. Mould cooling down.
When the component has sufficiently spent the right amount of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mould. This is one more measure that relies a lot on the ideal timing, since rapid cooling shrinks the material too rapidly, causing warping of the product.

4. The offloading or de-moulding step.
Once the material inside te mold has cooled properly, the person taking care of the process can then extract the completed product from the mold. The process is repeated from the start, making a number of exact products.

For more information on the different rotational rotomolding options offered for the Spring Valley CA 91976 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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