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

roto-molding-Benton-Rotational molding refers to a plastic production method that makes hollow stress-free items. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various forms, colors and sizes. This method is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing methods in that no pressure is called for. It also has few contenders when it involves the creation of large hollow items which are long lasting and inexpensive.There is a wide variety of products that are produced by this process including big water tanks, automobile items, sophisticated molded medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility 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 Benton IL 62812, 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 rotomoulding 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-Benton-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 Illinois 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 Benton Illinois 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 Rotomoulding Method in Detail

This molding method has been used since ancient times for creatingvseverl products. Egyptians for instance, applied roto-molding procedures in the making of ceramics. The Swiss were also using this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were made utilizing this procedure some time between 1940 and 1950. The system has however taken very long to take affect because it was thought of as being a very slow-moving process

1. Mould preparation.
A fixed quantity of polymer in powder form is packed into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel material. The coloration desired for the finished item 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 engineering.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then locked and installed inside the oven.

2. The heating up and fusion step.
Once within the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 revolutions per minute. One thing that is vital at this point is the amount of time the mould will spend within the oven. If it stays to long, the material will lose value and durability, generating a weak product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the completed product line.

3. Mold cooling.
When the material has sufficiently spent the enough of time in the oven, it is then removed for cooling. This can 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 mold. This is an additional step that relies a lot on the right timing, since rapid cooling shrinks the material too quick, causing warping of the item.

4. The un-loading or de-moulding phase.
When the material within te mold has cooled successfully, the person managing the process can then remove the finished item from the mould. The technique is repeated from the beginning, supplying a number of exact items.

For more information on the different rotational molding options offered for the Benton IL 62812 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic products

Local Resources

Process in Action
Google Map