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

rotational moulding-Alex-Rotational molding refers to a plastic manufacturing practice that creates hollow stress-free items. The process relies on high temperatures and bi axial rotation to come up with seamless, one piece products that have several designs, sizes and colors. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing procedures because no pressure is involved. It also has few contenders when it pertains to the production of large hollow items which are long lasting and inexpensive.There is a wide range of products that are created by this process including big water tanks, automobile products, intricate molded medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to design and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Alex OK 73002, 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

Custom Molded-Alex-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 Oklahoma 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 Alex Oklahoma 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 Procedure Components

This moulding operation has been used since ancient times for creatingvseverl products. Egyptians for example, applied rotomoulding procedures in the manufacturing of ceramics. The Swiss were also using this rotation technique to create hollow chocolate eggs. Some plastic product lines in the USA were developed using this method some time between 1940 and 1950. The process has however taken very long to take affect because it was thought of to be a moderately slow-moving process

1. Mould preparation.
A fixed measure of polymer in particle form is packed into a hollow mold. The mold is usually made of cast aluminium or sheet steel component. The color chosen for the finished product is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic production.

Pre-heating of the oven starts, and it may 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 installed inside the oven.

2. The heating and fusion step.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done slowly, about 20 revolutions per min. One thing that is essential at this point is the amount of time the mould will spend inside the oven. If it overstays, the component will lose stability and durability, producing a faulty item. If it is extracted from the oven too early, the polymer will not have melted properly, which develops bubbles in the completed item.

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 slightly for ease of removal from the mold. This is yet another procedure that depends upon a lot on the right timing, since quick cooling decreases the material too quickly, causing bending of the item.

4. The offloading or de-molding phase.
As soon as the component within te mold has cooled effectively, the molder handling the operation can then extract the finalized product from the mold. The function is repeated from the start, giving a series of identical products.

For more information on the different rotational rotomolding options offered for the Alex OK 73002 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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