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

rotocasting-Chancellor-Rotational molding refers to a plastic manufacturing method that generates hollow stress-free items. The method depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different shapes, sizes and colors. This method is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing techniques that no pressure is involved. It also has few contenders when it involves the manufacture of large size hollow items which are durable and inexpensive.There is a wide variety of items that are generated by this process including large water tanks, automobile materials, complex molded medical items, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in terms of 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 Chancellor SD 57015, 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

Plastic Molding-Chancellor-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 South Dakota 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 Chancellor South Dakota 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 Procedure Components

This molding technique has been used since ancient times for creatingvseverl items. Egyptians as an example, applied rotomoulding systems in the of ceramics. The Swiss were also employing this rotation type to make hollow chocolate eggs. Some plastic products in the USA were created utilizing this approach some time between 1940 and 1950. Given that it was thought of to be a very slow process, the process has however taken long to become popular

1. Mold preparation.
A predetermined amount of polymer in grain form is loaded into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel material. The color intended 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 design of plastic assembly.

Pre-heating of the oven starts, and it may 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 sealed and installed inside the oven.

2. The heat and fusion procedure.
Once inside the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The rotation is done gradually, about 20 revolutions per sixty seconds. Something that is essential at this point is the period of time the mold will spend within the oven. If it overstays, the product will lose stability and strength, producing a poor product. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which generates bubbles in the completed product.

3. Mould cooling down.
When the material has completely spent the correct amount of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it shrinks a little for ease of removal from the mold. This is another procedure that depends upon a lot on the correct timing, since quick cooling reduces the material too rapidly, causing warping of the item.

4. The unloading or de-molding step.
As soon as the component inside te mold has cooled effectively, the molder managing the operation can then take out the completed product from the mould. The procedure is repeated from the beginning, providing a series of identical product lines.

For more information on the different rotational rotomolding options offered for the Chancellor SD 57015 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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