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

rotational molding-Meriden-Rotational molding pertains to a plastic production practice that makes hollow stress-free items. The technique relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have various shapes, colors and sizes. This technique is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The function that makes this different from other plastic manufacturing processes that no pressure is called for. It also has few competitors when it comes to the production of large size hollow products which are long-lasting and inexpensive.There is a wide variety of items that are created by this process including large water tanks, automobile products, intricate designed medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in regards to design 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 Meriden IA 51037, 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 roto-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

Plastic Manufacturing-Meriden-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 Meriden 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 Rotomoulding Method in Detail

This molding technique has been used since earlier times for creatingvseverl products. Egyptians for instance, applied rotational molding solutions in the producing of ceramics. The Swiss were also using this rotation design to create hollow chocolate eggs. Some plastic items in the USA were created using this method some time between 1940 and 1950. The technique has however taken very long to catch on because it was thought of to be a relatively slow process

1. Mould fitting.
A fixed volume of polymer in powder form is loaded into a hollow mould. The mould is usually made of cast aluminium or sheet steel component. The coloring needed for the end 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 manufacturing.

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 mould with the powdered polymer is then secured and positioned inside the oven.

2. The heating and fusion procedure.
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 mould. The turning is done gradually, about 20 rotations per sixty seconds. Something that is critical at this point is the period of time the mold will spend within the oven. If it stays to long, the component will lose value and strength, creating a weak product. If it is taken out from the oven too early, the polymer will not have flowed correctly, which develops bubbles in the finalized product.

3. Mould cooling.
When the component has sufficiently spent the enough 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 generates a cool mist. When the material cools, it shrinks a little for ease of removal from the mold. This is an additional procedure that relies a lot on the right timing, since quick cooling shrinks the material too quick, causing warping of the product.

4. The offloading or de-molding phase.
Once the product within te mould has cooled effectively, the person handling the procedure can then remove the finalized product from the mold. The procedure is repeated from the start, making a number of identical products.

For more information on the different rotational rotomolding options offered for the Meriden IA 51037 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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