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

roto-molding-Valley-Rotational molding pertains to a plastic production solution that makes hollow stress-free products. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different forms, sizes and colors. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing procedures that no pressure is required. It also has few rivals when it pertains to the manufacture of large size hollow items which are long-lasting and inexpensive.There is a wide variety of products that are generated by this process including big water tanks, automobile products, sophisticated shaped medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in terms of design and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Valley AL 36854, 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 rotomolding 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 Products-Valley-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 Alabama 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 Valley Alabama 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 Process Components

This moulding technique has been used since ancient times for creatingvseverl products. Egyptians for instance, utilized rotomoulding methods in the of ceramics. The Swiss were also applying this rotation technique to generate hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this procedure some time between 1940 and 1950. The process has however taken very long to take affect because it was considered to be a pretty slow process

1. Mold preparation.
A fixed quantity of polymer in grain form is packed into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel material. The coloration needed for the final 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 design of plastic engineering.

Pre-heating 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 installed within the oven.

2. The heating up and fusion phase.
Once within the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The rotation is done slowly, about 20 spins per min. The main thing that is important at this moment is the period of time the mould will spend within the oven. If it stays to long, the material will lose stability and durability, making a faulty product. If it is extracted from the oven prematurely, the polymer will not have melted correctly, which develops bubbles in the completed product line.

3. Mold cooling.
When the material has sufficiently spent the right 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 extraction from the mold. This is another procedure that depends upon a lot on the right timing, since rapid cooling decreases the material too quick, causing warping of the product.

4. The offloading or de-moulding phase.
As soon as the component within te mold has cooled correctly, the person managing the operation can then remove the completed item from the mould. The process is repeated from the start, making a number of identical products.

For more information on the different rotational rotomolding options offered for the Valley AL 36854 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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