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

rotomoulding-Granger-Rotational moulding pertains to a plastic manufacturing technique that produces hollow stress-free products. The method uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different forms, colors and sizes. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing processes because no pressure is required. It also has few contenders when it comes to the creation of sizable hollow products which are resilient and inexpensive.There is a wide range of product lines that are produced by this process including big water tanks, automobile materials, complex molded medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in terms of design 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 Granger IA 50109, 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-Granger-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 Granger 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 Roto-Molding Method Components

This molding procedure has been used since earlier times for creatingvseverl products. Egyptians for example, used rotational molding methods in the creating of ceramics. The Swiss were also applying this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this method some time between 1940 and 1950. Considering that it was regarded to be a fairly slow-moving method, the technique has however taken long to become popular

1. Mould preparation.
A predetermined volume of polymer in particle form is filled into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel substance. The colour desired for the final product 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 design of plastic assembly.

Preheating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then locked and inserted within the oven.

2. The heat and fusion phase.
Once inside the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The turning is done slowly, about 20 rotations per sixty seconds. One thing that is important at this point is the period of time the mold will spend inside the oven. If it overstays, the material will lose value and durability, generating a faulty product. If it is removed from the oven too early, the polymer will not have liquefied correctly, which generates bubbles in the finalized product.

3. Mold cooling down.
When the product has completely spent the enough 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 creates a cool mist. When the product cools, it reduces a little for ease of removal from the mould. This is an additional step that depends upon a lot on the right timing, since quick cooling decreases the material too quickly, causing warping of the material.

4. The discharging or de-moulding phase.
As soon as the product within te mould has cooled effectively, the person taking care of the procedure can then take out the finalized product from the mold. The process is repeated from the start, supplying a number of exact items.

For more information on the different rotational rotomolding options offered for the Granger IA 50109 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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