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

rotomoulding-Clackamas-Rotational moulding refers to a plastic manufacturing method that produces hollow stress-free items. The process relies upon high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various forms, colors and sizes. This method is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing procedures in that no pressure is needed. It also has few rivals when it comes down to the manufacture of large size hollow items which are long lasting and inexpensive.There is a wide range of items that are produced by this process including big water tanks, automobile items, complex molded medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in regards to type and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Clackamas OR 97015, 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 rotocasting 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-Clackamas-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 Clackamas 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 Procedure in Detail

This molding procedure has been used since early times for creatingvseverl items. Egyptians as an example, used rotocasting procedures in the creating of ceramics. The Swiss were also working with this rotation approach to generate hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this method some time between 1940 and 1950. The technique has however taken very long to take affect because it was thought of as being a pretty slow-moving process

1. Mould readying.
A predetermined measure of polymer in particle form is loaded into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel component. The colour chosen for the finished product 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 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 mould with the powdered polymer is then locked and inserted within the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The turning is done gradually, about 20 revolutions per sixty seconds. Something that is vital at this point is the amount of time the mould will spend inside the oven. If it overstays, the material will lose value and strength, generating a weak product. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finished product.

3. Mold cooling down.
When the product 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 material cools, it reduces slightly for ease of removal from the mold. This is yet another measure that relies a lot on the correct timing, since rapid cooling reduces the material too rapidly, causing bending of the material.

4. The removing or de-molding phase.
Once the component inside te mould has cooled effectively, the person managing the procedure can then take out the finalized product from the mould. The technique is repeated from the beginning, supplying a number of identical items.

For more information on the different rotational rotomolding options offered for the Clackamas OR 97015 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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