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

rotational molding-Riverbank-Rotational molding refers to a plastic production solution that generates hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have many different shapes, sizes and colors. This procedure is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing processes in that no pressure is called for. It also has few rivals when it pertains to the manufacture of large size hollow products which are long lasting and inexpensive.There is a wide range of items that are produced by this process including large size water tanks, automobile materials, sophisticated designed medical products, recreation equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in regards to design 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 Riverbank CA 95367, 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 Molding-Riverbank-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 Riverbank 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 technique has been used since ancient times for creatingvseverl products. Egyptians for example, applied rotomoulding systems in the of ceramics. The Swiss were also making use of this rotation approach to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this procedure some time between 1940 and 1950. The process has however taken very long to take affect because it was thought of to be a somewhat slow-moving process

1. Mould preparation.
A predetermined measure of polymer in particle form is filled into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel material. The coloring needed for the end item 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 type of plastic engineering.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then secured and positioned within the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The spinning is done gradually, about 20 spins per minute. The main thing that is essential at this point is the amount of time the mould will spend inside the oven. If it stays to long, the component will lose value and strength, producing a weak product. If it is taken out from the oven too early, the polymer will not have melted correctly, which develops bubbles in the finished product.

3. Mold cooling.
When the material has completely 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 creates a cool mist. When the material cools, it shrinks slightly for ease of removal from the mould. This is one more procedure that relies a lot on the correct timing, since rapid cooling shrinks the material too fast, causing warping of the product.

4. The discharging or de-moulding step.
As soon as the material within te mould has cooled adequately, the molder managing the process can then extract the finalized item from the mold. The technique is repeated from the start, giving a number of identical products.

For more information on the different rotational rotomolding options offered for the Riverbank CA 95367 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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