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

roto-molding-Plainview-Rotational molding refers to a plastic production procedure that produces hollow stress-free product lines. The process depends on high temperatures and bi axial rotation to come up with seamless, one piece products that have varying shapes, sizes and colors. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing processes because no pressure is involved. It also has few competitors when it pertains to the production of large size hollow products which are long lasting and inexpensive.There is a wide variety of products that are produced by this process including large size water tanks, automobile products, intricate shaped medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in terms of type and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Plainview AR 72857, 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 rotocasting 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-Plainview-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 Arkansas 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 Plainview Arkansas 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 Components

This moulding procedure has been used since earlier times for creatingvseverl product lines. Egyptians for instance, employed roto-molding methods in the making of ceramics. The Swiss were also employing this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this procedure some time between 1940 and 1950. Since it was thought of to be a fairly slow method, the system has however taken long to catch on

1. Mould readying.
A fixed volume of polymer in grain form is packed into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel material. The coloring intended 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 format of plastic assembly.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then sealed and installed inside the oven.

2. The heat and fusion procedure.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The turning is done slowly and gradually, about 20 revolutions per min. One thing that is essential at this moment is the period of time the mold will spend within the oven. If it overstays, the component will lose value and durability, making a poor item. If it is removed from the oven too early, the polymer will not have liquefied correctly, which creates bubbles in the completed product line.

3. Mold cooling.
When the material 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 creates a cool mist. When the component cools, it shrinks somewhat for ease of removal from the mold. This is an additional step that relies a lot on the correct timing, since rapid cooling shrinks the material too fast, causing bending of the item.

4. The removing or de-molding step.
As soon as the product inside te mold has cooled correctly, the molder handling the process can then take out the finalized product from the mould. The function is repeated from the start, giving a number of exact products.

For more information on the different rotational rotomolding options offered for the Plainview AR 72857 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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