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

rotational moulding-Lakeside-Rotational moulding pertains to a plastic manufacturing method that makes hollow stress-free product lines. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different shapes, colors and sizes. This technique is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The attribute that makes this different from other plastic manufacturing techniques in that no pressure is involved. It also has few rivals when it comes to the manufacture of large hollow items which are long-lasting and inexpensive.There is a wide range of items that are developed by this process including large size water tanks, automobile products, intricate shaped medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in regards to design 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 Lakeside OR 97449, 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 Molding-Lakeside-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 Lakeside 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 in Detail

This moulding technique has been used since ancient times for creatingvseverl products. Egyptians for instance, applied roto-molding procedures in the making of ceramics. The Swiss were also employing this rotation format to create hollow chocolate eggs. Some plastic items in the USA were developed utilizing this procedure some time between 1940 and 1950. The technique has however taken long to catch on because it was thought of to be a rather slow-moving process

1. Mould preparation.
A predetermined volume of polymer in particle form is filled into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel substance. The colour desired for the end item is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic engineering.

Preheating of the oven starts, and it can 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 placed within the oven.

2. The heating and fusion phase.
Once placed into the oven, the mold is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The turning is done slowly and gradually, about 20 rotations per minute. The main thing that is essential at this moment is the amount of time the mould will spend inside the oven. If it overstays, the material will lose value and durability, making a weak product. If it is extracted from the oven too early, the polymer will not have liquefied properly, which generates bubbles in the finished item.

3. Mold cooling.
When the material has completely spent the correct amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the material cools, it reduces somewhat for ease of extraction from the mould. This is another measure that depends a lot on the ideal timing, since rapid cooling reduces the material too rapidly, causing bending of the product.

4. The offloading or de-molding phase.
As soon as the material within te mould has cooled successfully, the molder taking care of the operation can then take out the completed product from the mould. The process is repeated from the start, making a series of similar products.

For more information on the different rotational rotomolding options offered for the Lakeside OR 97449 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to custom molding

Local Resources

Production Example
Google Map