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

rotational molding-Elmira-Rotational molding pertains to a plastic manufacturing practice that produces hollow stress-free product lines. The process relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have various forms, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing processes because no pressure is required. It also has few contenders when it pertains to the creation of sizable hollow items which are durable and inexpensive.There is a wide variety of items that are created by this process including big water tanks, automobile products, intricate molded medical products, recreation equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of design and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Elmira OR 97437, 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 rotomoulding 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-Elmira-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 Elmira 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 Process Components

This moulding operation has been used since ancient times for creatingvseverl products. Egyptians for instance, employed roto-molding solutions in the producing of ceramics. The Swiss were also making use of this rotation style to make hollow chocolate eggs. Some plastic items in the USA were developed utilizing this method some time between 1940 and 1950. Given that it was thought of to be a rather slow method, the system has however taken long to become popular

1. Mold preparation.
A predetermined volume of polymer in particle form is packed into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel component. The color wanted for the end 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 engineering.

Preheating of the oven starts, 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 inside the oven.

2. The heating and fusion phase.
Once within the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The turning is done slowly and gradually, about 20 spins per min. Something that is crucial at this moment is the amount of time the mold will spend within the oven. If it overstays, the material will lose stability and durability, creating a weak item. If it is taken out from the oven too early, the polymer will not have liquefied correctly, which produces bubbles in the finished item.

3. Mould cooling down.
When the component has completely 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 a cool mist. When the material cools, it reduces somewhat for ease of extraction from the mold. This is another step that depends upon a lot on the right timing, since rapid cooling decreases the material too quickly, causing warping of the product.

4. The unloading or de-molding phase.
Once the material inside te mould has cooled effectively, the molder handling the operation can then remove the finalized product from the mold. The process is repeated from the start, making a number of similar items.

For more information on the different rotational rotomolding options offered for the Elmira OR 97437 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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