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

rotational moulding-Weston-Rotational molding refers to a plastic production method that creates hollow stress-free product lines. The method utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of shapes, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this unique from other plastic manufacturing processes because no pressure is required. It also has few contenders when it pertains to the production of large hollow items which are durable and inexpensive.There is a wide variety of products that are created by this process including large water tanks, automobile items, complex shaped medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to style and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Weston OR 97886, 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-Weston-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 Weston 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 Rotomolding Procedure Components

This molding operation has been used since early times for creatingvseverl product lines. Egyptians for instance, worked with rotocasting solutions in the of ceramics. The Swiss were also applying this rotation technique to create hollow chocolate eggs. Some plastic products in the USA were made utilizing this approach some time between 1940 and 1950. The process has however taken very long to take affect because it was looked at as being a rather slow-moving process

1. Mold readying.
A predetermined quantity of polymer in grain form is loaded into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel component. The color desired for the end 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 manufacturing.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then locked and put into the oven.

2. The heat and fusion procedure.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done slowly, about 20 rotations per min. One thing that is crucial at this moment is the period of time the mold will spend inside the oven. If it overstays, the product will lose value and strength, making a weak item. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the completed product.

3. Mold cooling down.
When the material has completely spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it reduces a little for ease of extraction from the mold. This is an additional measure that depends upon a lot on the ideal timing, since quick cooling shrinks the material too fast, causing bending of the item.

4. The offloading or de-moulding step.
As soon as the material within te mold has cooled effectively, the person taking care of the operation can then take out the finished item from the mold. The function is repeated from the beginning, making a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Weston OR 97886 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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