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

rotational moulding-Altamont-Rotational molding pertains to a plastic manufacturing practice that makes hollow stress-free products. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece products that have various designs, sizes and colors. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this unique from other plastic manufacturing methods that no pressure is called for. It also has few rivals when it comes to the creation of large hollow items which are long lasting and inexpensive.There is a wide range of products that are generated by this process including large water tanks, automobile products, intricate shaped medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in terms of type and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Altamont IL 62411, 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

Custom Molding-Altamont-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 Altamont 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 Rotomolding Process Components

This moulding technique has been used since early times for creatingvseverl items. Egyptians for example, utilized rotomoulding solutions in the manufacturing of ceramics. The Swiss were also working with this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were made using this method some time between 1940 and 1950. Because it was looked at to be a rather slow approach, the method has however taken long to catch on

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

Preheating of the oven starts, and it can 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 inserted into the oven.

2. The heating up and fusion phase.
Once placed into the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The spinning is done gradually, about 20 spins per minute. The main thing that is important at this point is the period of time the mould will spend inside the oven. If it stays to long, the component will lose value and strength, creating a weak item. If it is removed from the oven too early, the polymer will not have flowed correctly, which generates bubbles in the finalized item.

3. Mould cooling.
When the product has completely 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 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 ideal timing, since quick cooling decreases the material too quick, causing warping of the material.

4. The discharging or de-molding step.
Once the component inside te mold has cooled adequately, the molder handling the process can then extract the finished product from the mould. The technique is repeated from the beginning, giving a series of identical products.

For more information on the different rotational molding options offered for the Altamont IL 62411 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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