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

rotational molding-Goodyear-Rotational molding pertains to a plastic production procedure that generates hollow stress-free products. The function uses high temperatures and bi axial rotation to come up with seamless, one piece products that have various designs, colors and sizes. This method is also referred to 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 procedures in that no pressure is involved. It also has few contenders when it involves the production of large size hollow products which are long lasting and inexpensive.There is a wide variety of products that are created by this process including large size water tanks, automobile items, complex shaped medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Goodyear AZ 85338, 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 rotomoulding 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-Goodyear-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 Arizona 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 Goodyear Arizona 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 Method in Detail

This moulding procedure has been used since ancient times for creatingvseverl product lines. Egyptians for instance, used rotocasting methods in the of ceramics. The Swiss were also employing this rotation type to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this method some time between 1940 and 1950. The procedure has however taken very long to catch on because it was thought of as being a somewhat slow process

1. Mould prep work.
A fixed volume of polymer in particle form is packed into a hollow mould. The mould is usually comprised of cast aluminium or sheet steel component. The colour chosen for the finished item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic production.

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 mould with the powdered polymer is then sealed and positioned within the oven.

2. The heating and fusion process.
Once inside the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done slowly, about 20 revolutions per minute. One thing that is essential at this point is the amount of time the mold will spend inside the oven. If it stays to long, the component will lose stability and strength, generating a faulty product. If it is removed from the oven too early, the polymer will not have melted properly, which creates bubbles in the completed product.

3. Mold cooling down.
When the product has sufficiently spent the correct amount 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 generates a cool mist. When the product cools, it reduces somewhat for ease of removal from the mould. This is an additional step that relies a lot on the correct timing, since rapid cooling reduces the material too quickly, causing warping of the product.

4. The discharging or de-molding phase.
Once the product within te mould has cooled properly, the person managing the procedure can then take out the finished item from the mold. The process is repeated from the start, providing a number of similar products.

For more information on the different rotational rotomolding options offered for the Goodyear AZ 85338 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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