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

rotational moulding-Dunlap-Rotational moulding refers to a plastic production technique that creates hollow stress-free products. The procedure relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have varying shapes, colors and sizes. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The function that makes this unique from other plastic manufacturing processes because no pressure is needed. It also has few rivals when it involves the production of large size hollow products which are long lasting and inexpensive.There is a wide range of items that are created by this process including big water tanks, automobile products, intricate designed medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in regards to type and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Dunlap IL 61525, 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 moulding 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 Molded-Dunlap-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 Dunlap 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 Roto-Molding Process Components

This molding method has been used since ancient times for creatingvseverl items. Egyptians for instance, applied rotomoulding methods in the making of ceramics. The Swiss were also utilizing this rotation format to make hollow chocolate eggs. Some plastic items in the USA were manufactured using this technique some time between 1940 and 1950. Due to the fact that it was looked at to be a rather slow-moving system, the system has however taken long to become popular

1. Mold readying.
A predetermined volume of polymer in particle form is filled into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel component. The color intended for the end product 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 design of plastic production.

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

2. The heating and fusion procedure.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per min. Something that is important at this point is the amount of time the mold will spend inside the oven. If it overstays, the component will lose stability and strength, creating a weak product. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which produces bubbles in the completed product.

3. Mold cooling.
When the material has completely 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 a cool mist. When the material cools, it reduces slightly for ease of removal from the mold. This is yet another step that relies a lot on the ideal timing, since quick cooling shrinks the material too fast, causing warping of the material.

4. The removing or de-molding step.
When the material within te mold has cooled effectively, the molder handling the operation can then extract the finalized item from the mold. The process is repeated from the beginning, providing a number of exact items.

For more information on the different rotational molding options offered for the Dunlap IL 61525 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 molding

Local Resources

Process in Action
Google Map