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

rotocasting-Brush Prairie-Rotational molding pertains to a plastic production practice that produces hollow stress-free products. The process depends on high temperatures and bi axial rotation to come up with seamless, one piece items that have varying shapes, colors and sizes. This method is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing techniques that no pressure is needed. It also has few rivals when it comes to the creation of large size hollow items which are durable and inexpensive.There is a variety of products that are generated by this process including big water tanks, automobile materials, intricate molded medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in terms of style 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 Brush Prairie WA 98606, 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 rotational 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 Molding-Brush Prairie-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 Washington 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 Brush Prairie Washington 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 Method in Detail

This moulding process has been used since earlier times for creatingvseverl product lines. Egyptians as an example, used roto-molding solutions in the manufacturing of ceramics. The Swiss were also using this rotation format to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this procedure some time between 1940 and 1950. Because it was considered to be a somewhat slow system, the procedure has however taken long to catch on

1. Mold readying.
A predetermined volume of polymer in powder form is loaded into a hollow mould. The mold is usually made of cast aluminium or sheet steel substance. The coloring intended for the final 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 style of plastic assembly.

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 mold with the powdered polymer is then sealed and placed into the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The spinning is done slowly, about 20 rotations per sixty seconds. The main thing that is crucial at this moment is the amount of time the mold will spend within the oven. If it stays to long, the material will lose value and durability, creating a poor item. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which creates bubbles in the completed item.

3. Mould cooling.
When the component has completely spent the enough 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 shrinks slightly for ease of removal from the mold. This is yet another procedure that relies a lot on the ideal timing, since quick cooling reduces the material too quick, causing warping of the item.

4. The offloading or de-moulding step.
Once the product within te mold has cooled adequately, the person managing the process can then extract the finalized product from the mould. The technique is repeated from the beginning, giving a series of exact product lines.

For more information on the different rotational rotomolding options offered for the Brush Prairie WA 98606 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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