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

rotational molding-Lincolnwood-Rotational molding pertains to a plastic manufacturing practice that creates hollow stress-free product lines. The function relies upon high temperatures and bi axial rotation to follow up with seamless, one piece objects that have varying designs, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing methods in that no pressure is required. It also has few contenders when it involves the creation of large hollow items which are long-lasting and inexpensive.There is a variety of products that are produced by this process including large water tanks, automobile products, intricate molded medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of 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 Lincolnwood IL 60712, 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 rotocasting 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-Lincolnwood-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 Lincolnwood 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 Process Components

This moulding procedure has been used since ancient times for creatingvseverl items. Egyptians for instance, used rotational molding techniques in the of ceramics. The Swiss were also applying this rotation approach to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this procedure some time between 1940 and 1950. The procedure has however taken very long to catch on because it was considered to be a relatively slow-moving process

1. Mould readying.
A predetermined volume of polymer in grain form is packed into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel material. The coloring desired for the final product 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 engineering.

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 placed within the oven.

2. The heat and fusion procedure.
Once within the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The spinning is done gradually, about 20 revolutions per minute. Something that is important at this moment is the amount of time the mould will spend inside the oven. If it stays to long, the material will lose value and durability, producing a poor item. If it is removed from the oven too early, the polymer will not have liquefied correctly, which develops bubbles in the completed item.

3. Mould cooling down.
When the material has sufficiently spent the correct amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it shrinks a little for ease of extraction from the mould. This is an additional measure that depends upon a lot on the right timing, since rapid cooling reduces the material too quick, causing warping of the item.

4. The removing or de-moulding step.
When the product inside te mould has cooled effectively, the person taking care of the procedure can then take out the completed product from the mould. The procedure is repeated from the beginning, making a series of exact products.

For more information on the different rotational molding options offered for the Lincolnwood IL 60712 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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