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

rotomoulding-Medinah-Rotational moulding pertains to a plastic production solution that makes hollow stress-free products. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying designs, 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 unique from other plastic manufacturing methods that no pressure is needed. It also has few contenders when it comes down to the creation of sizable hollow products which are resilient and inexpensive.There is a wide variety of product lines that are created by this process including large water tanks, automobile items, intricate designed medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in terms of style and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Medinah IL 60157, 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 rotomolding 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-Medinah-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 Medinah 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 Procedure in Detail

This moulding method has been used since ancient times for creatingvseverl product lines. Egyptians for example, worked with rotational molding systems in the making of ceramics. The Swiss were also working with this rotation technique to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this procedure some time between 1940 and 1950. The system has however taken long to catch on because it was looked at to be a rather slow process

1. Mould preparation.
A fixed amount of polymer in particle form is filled into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel component. The coloration preferred for the end goods 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 style 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 mold with the powdered polymer is then locked and put inside the oven.

2. The heating and fusion step.
Once within the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The spinning is done slowly and gradually, about 20 spins per minute. One thing that is essential at this moment is the period of time the mold will spend within the oven. If it overstays, the component will lose value and durability, generating a faulty product. If it is taken out from the oven too early, the polymer will not have melted correctly, which produces bubbles in the finished product line.

3. Mold cooling.
When the material has completely spent the correct 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 creates a cool mist. When the component cools, it reduces slightly for ease of removal from the mold. This is one more measure that relies a lot on the ideal timing, since rapid cooling reduces the material too rapidly, causing bending of the product.

4. The unloading or de-moulding step.
As soon as the product inside te mold has cooled successfully, the molder managing the procedure can then remove the finished item from the mold. The technique is repeated from the start, giving a number of exact products.

For more information on the different rotational molding options offered for the Medinah IL 60157 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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