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

rotational molding-Fremont-Rotational molding refers to a plastic production solution that produces hollow stress-free items. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece items that have various shapes, sizes and colors. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this different from other plastic manufacturing techniques that no pressure is required. It also has few rivals when it involves the manufacture of sizable hollow products which are long lasting and inexpensive.There is a wide variety of items that are produced by this process including large water tanks, automobile items, intricate designed medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in terms of style 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 Fremont CA 94536, 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 roto-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 Products-Fremont-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 Fremont 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 Method in Detail

This moulding operation has been used since early times for creatingvseverl product lines. Egyptians for instance, employed rotocasting methods in the producing of ceramics. The Swiss were also utilizing this rotation type to create hollow chocolate eggs. Some plastic products in the USA were created using this approach some time between 1940 and 1950. The procedure has however taken very long to take affect because it was looked at as being a pretty slow-moving process

1. Mould preparation.
A fixed volume of polymer in grain form is filled into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel material. The coloring chosen for the final goods 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 design of plastic production.

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 mold with the powdered polymer is then sealed and inserted within the oven.

2. The heat and fusion process.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 spins per minute. One thing that is crucial at this moment is the period of time the mould will spend within the oven. If it overstays, the material will lose value and durability, producing a weak item. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the completed product.

3. Mold cooling.
When the component 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 generates a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mould. This is yet another step that relies a lot on the right timing, since quick cooling decreases the material too fast, causing warping of the material.

4. The un-loading or de-moulding step.
When the material within te mold has cooled effectively, the molder taking care of the procedure can then take out the finalized item from the mold. The technique is repeated from the beginning, providing a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Fremont CA 94536 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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