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

rotomoulding-Redwood Valley-Rotational molding pertains to a plastic manufacturing technique that produces hollow stress-free products. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece products that have several shapes, colors and sizes. This method is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing procedures that no pressure is called for. It also has few rivals when it comes down to the creation of large size hollow products which are durable and inexpensive.There is a variety of items that are developed by this process including big water tanks, automobile items, sophisticated shaped medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in regards to design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Redwood Valley CA 95470, 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

Custom Molded-Redwood 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 Redwood 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 Roto-Molding Procedure in Detail

This moulding operation has been used since ancient times for creatingvseverl items. Egyptians for example, used rotocasting procedures in the producing of ceramics. The Swiss were also working with this rotation design to generate hollow chocolate eggs. Some plastic items in the USA were made using this method some time between 1940 and 1950. Given that it was thought of to be a relatively slow procedure, the system has however taken long to catch on

1. Mold fitting.
A predetermined measure of polymer in particle form is filled into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel material. The color preferred for the final product is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic production.

Preheating of the oven follows, and it may 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 secured and placed into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done gradually, about 20 rotations per sixty seconds. Something that is important at this point is the amount of time the mold will spend inside the oven. If it stays to long, the component will lose value and strength, creating a faulty item. If it is removed from the oven too early, the polymer will not have liquefied properly, which generates bubbles in the finalized product line.

3. Mold cooling.
When the material has completely spent the enough of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mold. This is one more measure that depends upon a lot on the right timing, since quick cooling reduces the material too fast, causing bending of the item.

4. The offloading or de-moulding step.
When the component inside te mold has cooled adequately, the molder taking care of the procedure can then take out the finished product from the mold. The function is repeated from the beginning, providing a number of exact items.

For more information on the different rotational rotomolding options offered for the Redwood Valley CA 95470 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