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

rotational molding-Nampa-Rotational molding refers to a plastic production technique that makes hollow stress-free products. The process depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have several forms, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The feature that makes this different from other plastic manufacturing methods in that no pressure is called for. It also has few competitors when it comes to the manufacture of sizable hollow products which are resilient and inexpensive.There is a wide range of products that are produced by this process including big water tanks, automobile products, intricate molded medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to style 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 Nampa ID 83651, 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

Custom Molding-Nampa-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 Idaho 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 Nampa Idaho 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 in Detail

This moulding technique has been used since earlier times for creatingvseverl items. Egyptians for example, used rotational molding solutions in the creating of ceramics. The Swiss were also employing this rotation technique to create hollow chocolate eggs. Some plastic items in the USA were manufactured using this method some time between 1940 and 1950. Since it was looked at to be a relatively slow-moving process, the technique has however taken long to become popular

1. Mold readying.
A predetermined quantity of polymer in powder form is filled into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel component. The coloring chosen for the finished 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 design of plastic manufacturing.

Pre-heating 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 mould with the powdered polymer is then secured and installed within the oven.

2. The heating up and fusion procedure.
Once placed into the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The spinning is done gradually, about 20 spins per minute. Something that is important at this point is the period of time the mould will spend within the oven. If it overstays, the material will lose stability and strength, producing a poor item. If it is extracted from the oven too early, the polymer will not have flowed correctly, which produces bubbles in the completed product line.

3. Mould cooling down.
When the product has sufficiently spent the right amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it shrinks somewhat for ease of removal from the mould. This is yet another measure that depends upon a lot on the right timing, since rapid cooling reduces the material too rapidly, causing bending of the item.

4. The discharging or de-molding step.
Once the material within te mould has cooled correctly, the person managing the process can then extract the finished item from the mould. The procedure is repeated from the beginning, providing a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Nampa ID 83651 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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