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

rotational moulding-Woodland-Rotational molding refers to a plastic production procedure that creates hollow stress-free product lines. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have several designs, sizes and colors. This procedure is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing procedures that no pressure is required. It also has few contenders when it involves the production of large size hollow items which are resilient and inexpensive.There is a wide variety of products that are created by this process including big water tanks, automobile products, complex molded medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in regards to design 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 Woodland WA 98674, 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-Woodland-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 Washington 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 Woodland Washington 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 Process Components

This moulding procedure has been used since earlier times for creatingvseverl product lines. Egyptians as an example, utilized rotational molding systems in the making of ceramics. The Swiss were also employing this rotation approach to make hollow chocolate eggs. Some plastic items in the USA were manufactured utilizing this method some time between 1940 and 1950. Because it was regarded to be a rather slow procedure, the process has however taken long to become popular

1. Mold readying.
A fixed amount of polymer in grain form is packed into a hollow mould. The mould is usually made from cast aluminium or sheet steel substance. The coloring wanted for the end product 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 follows, and it may 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 secured and placed inside the oven.

2. The heating and fusion phase.
Once within the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The turning is done gradually, about 20 revolutions per min. The main thing that is important at this point is the period of time the mould will spend within the oven. If it overstays, the material will lose value and durability, generating a faulty product. If it is extracted from the oven too early, the polymer will not have liquefied properly, which develops bubbles in the finalized item.

3. Mould cooling.
When the component has sufficiently spent the enough of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks slightly for ease of extraction from the mould. This is yet another measure that relies a lot on the correct timing, since quick cooling reduces the material too quickly, causing bending of the material.

4. The un-loading or de-moulding step.
As soon as the material inside te mold has cooled properly, the molder taking care of the procedure can then extract the completed product from the mold. The function is repeated from the start, giving a number of similar products.

For more information on the different rotational rotomolding options offered for the Woodland WA 98674 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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