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

rotomoulding-Granville-Rotational molding pertains to a plastic manufacturing solution that makes hollow stress-free items. The method depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have a wide range of forms, sizes and colors. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The component that makes this unique from other plastic manufacturing processes in that no pressure is called for. It also has few competitors when it comes down to the creation of sizable hollow products which are long-lasting and inexpensive.There is a wide variety of items that are generated by this process including large water tanks, automobile items, complex shaped medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility 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 Granville IA 51022, 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

Plastic Molding-Granville-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 Iowa 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 Granville Iowa 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 Method in Detail

This moulding system has been used since early times for creatingvseverl product lines. Egyptians as an example, used rotocasting methods in the making of ceramics. The Swiss were also employing this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were made using this approach some time between 1940 and 1950. Given that it was considered to be a fairly slow system, the procedure has however taken long to become popular

1. Mould readying.
A fixed amount of polymer in grain form is filled into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel component. The coloring chosen for the end item 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 assembly.

Pre-heating 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 mould with the powdered polymer is then secured and inserted within the oven.

2. The heat and fusion process.
Once within the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The turning is done slowly, about 20 rotations per minute. The main thing that is critical at this point is the amount of time the mold will spend inside the oven. If it stays to long, the component will lose value and durability, generating a faulty item. If it is removed from the oven too early, the polymer will not have liquefied properly, which creates bubbles in the finalized product.

3. Mould cooling down.
When the product has sufficiently spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it shrinks somewhat for ease of removal from the mold. This is one more procedure that relies a lot on the correct timing, since quick cooling decreases the material too quick, causing bending of the product.

4. The un-loading or de-molding step.
As soon as the material inside te mould has cooled effectively, the person managing the procedure can then remove the finalized product from the mold. The technique is repeated from the start, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Granville IA 51022 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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