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

rotational moulding-Bickleton-Rotational molding refers to a plastic manufacturing procedure that generates hollow stress-free products. The procedure relies on high temperatures and bi axial rotation to come up with seamless, one piece items that have different forms, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The component that makes this different from other plastic manufacturing methods because no pressure is required. It also has few competitors when it pertains to the creation of sizable hollow products which are resilient and inexpensive.There is a wide variety of items that are generated by this process including big water tanks, automobile products, sophisticated designed medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in regards to type and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Bickleton WA 99322, 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 roto-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

Plastic Products-Bickleton-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 Bickleton 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 Rotomolding Procedure in Detail

This molding system has been used since earlier times for creatingvseverl items. Egyptians as an example, worked with rotomoulding systems in the manufacturing of ceramics. The Swiss were also utilizing this rotation format to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this approach some time between 1940 and 1950. The technique has however taken very long to catch on because it was considered as being a rather slow process

1. Mold prep work.
A fixed measure of polymer in grain form is packed into a hollow mould. The mould is usually made from cast aluminium or sheet steel material. The coloration chosen for the end goods is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic assembly.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then locked and inserted within the oven.

2. The heat and fusion procedure.
Once inside the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The spinning is done slowly, about 20 rotations per minute. The main thing that is critical at this moment is the period of time the mold will spend within the oven. If it stays to long, the material will lose stability and durability, generating a poor product. If it is extracted from the oven too early, the polymer will not have liquefied correctly, which creates bubbles in the finished product line.

3. Mold cooling down.
When the product has completely spent the right 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 component cools, it shrinks slightly for ease of extraction from the mold. This is an additional procedure that relies a lot on the ideal timing, since quick cooling shrinks the material too fast, causing warping of the material.

4. The removing or de-molding phase.
As soon as the material within te mold has cooled properly, the molder taking care of the procedure can then remove the completed product from the mold. The function is repeated from the beginning, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the Bickleton WA 99322 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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