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

rotational moulding-Redlands-Rotational moulding refers to a plastic production practice that produces hollow stress-free product lines. The method depends on high temperatures and bi axial rotation to come up with seamless, one piece products that have varying shapes, colors and sizes. 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 different from other plastic manufacturing methods because no pressure is involved. It also has few contenders when it comes down to the production of large hollow items which are durable and inexpensive.There is a wide range of items that are generated by this process including big water tanks, automobile materials, sophisticated molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in regards to style and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Redlands CA 92373, 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 rotomolding 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-Redlands-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 Redlands 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 system has been used since ancient times for creatingvseverl products. Egyptians for instance, applied roto-molding procedures in the creating of ceramics. The Swiss were also utilizing this rotation format to generate hollow chocolate eggs. Some plastic products in the USA were developed using this technique some time between 1940 and 1950. Given that it was viewed to be a very slow process, the approach has however taken long to become popular

1. Mold fitting.
A predetermined measure of polymer in powder form is packed into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel component. The coloration preferred for the end 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 type of plastic assembly.

Preheating of the oven starts, and it may 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 locked and positioned within the oven.

2. The heating and fusion phase.
Once within the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done gradually, about 20 spins per sixty seconds. Something that is vital at this point is the amount of time the mould will spend within the oven. If it stays to long, the component will lose stability and strength, producing a poor product. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the completed product line.

3. Mold cooling.
When the material has completely 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 a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is one more procedure that relies a lot on the right timing, since quick cooling decreases the material too rapidly, causing bending of the item.

4. The offloading or de-molding phase.
As soon as the material inside te mould has cooled successfully, the person managing the process can then remove the finished product from the mould. The process is repeated from the start, providing a number of similar products.

For more information on the different rotational rotomolding options offered for the Redlands CA 92373 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic products

Local Resources

Production Example
Google Map