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

rotocasting-Rufus-Rotational molding refers to a plastic production solution that generates hollow stress-free items. The technique uses high temperatures and bi axial rotation to come up with seamless, one piece products that have varying shapes, sizes and colors. This method is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing techniques that no pressure is required. It also has few contenders when it comes to the manufacture of large size hollow products 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 materials, sophisticated shaped medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in terms of style and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Rufus OR 97050, 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 Molding-Rufus-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 Rufus 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 Roto-Molding Process Components

This molding procedure has been used since early times for creatingvseverl product lines. Egyptians for example, employed rotocasting techniques in the of ceramics. The Swiss were also employing this rotation method to create hollow chocolate eggs. Some plastic products in the USA were created utilizing this technique some time between 1940 and 1950. Due to the fact that it was considered to be a rather slow-moving method, the technique has however taken long to catch on

1. Mould prep work.
A fixed amount of polymer in grain form is filled into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel material. The coloration wanted for the final 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 assembly.

Pre-heating of the oven follows, and it can 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 sealed and inserted into the oven.

2. The heat and fusion process.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The rotation is done slowly, about 20 rotations per minute. One thing that is critical at this moment is the period of time the mold will spend inside the oven. If it stays to long, 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 correctly, which generates bubbles in the completed product.

3. Mould cooling down.
When the component has completely spent the correct amount 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 generates a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mold. This is yet another procedure that relies a lot on the correct timing, since quick cooling decreases the material too quickly, causing warping of the material.

4. The offloading or de-moulding phase.
When the product inside te mould has cooled effectively, the molder handling the process can then remove the completed product from the mould. The procedure is repeated from the beginning, giving a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Rufus OR 97050 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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