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

rotomolding-Colton-Rotational molding pertains to a plastic manufacturing method that generates hollow stress-free product lines. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece products that have several shapes, sizes and colors. This technique is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this unique from other plastic manufacturing methods that no pressure is involved. It also has few rivals when it comes to the production of large hollow items which are resilient and inexpensive.There is a variety of items that are developed by this process including large water tanks, automobile items, complex shaped medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in regards to design and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Colton OR 97017, 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

Custom Molded-Colton-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 Oregon 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 Colton Oregon 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 Components

This moulding operation has been used since early times for creatingvseverl products. Egyptians for example, used rotomoulding solutions in the manufacturing of ceramics. The Swiss were also utilizing this rotation approach to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this approach some time between 1940 and 1950. The technique has however taken long to take affect because it was looked at as being a rather slow-moving process

1. Mould fitting.
A fixed amount of polymer in grain form is loaded into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel material. The coloration needed for the final item 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 design of plastic assembly.

Pre-heating 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 locked and put inside the oven.

2. The heating up and fusion process.
Once within the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done gradually, about 20 rotations per sixty seconds. One thing that is crucial at this moment is the period of time the mould will spend inside the oven. If it stays to long, the product will lose value and strength, making a weak product. If it is taken out from the oven prematurely, the polymer will not have melted correctly, which develops bubbles in the completed product line.

3. Mold cooling.
When the component has completely spent the right amount 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 creates a cool mist. When the product cools, it shrinks a little for ease of extraction from the mould. This is another measure that relies a lot on the correct timing, since rapid cooling reduces the material too rapidly, causing warping of the item.

4. The discharging or de-moulding step.
When the product inside te mould has cooled correctly, the person handling the process can then extract the completed item from the mold. The technique is repeated from the beginning, supplying a number of exact products.

For more information on the different rotational rotomolding options offered for the Colton OR 97017 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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