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

rotational molding-Benavides-Rotational molding pertains to a plastic production practice that produces hollow stress-free items. The method utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have several forms, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The function that makes this unique from other plastic manufacturing methods that no pressure is called for. It also has few competitors when it comes down to the manufacture of large size hollow items which are durable and inexpensive.There is a wide variety of products that are generated by this process including large water tanks, automobile products, intricate shaped medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in regards to style 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 Benavides TX 78341, 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 Manufacturing-Benavides-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 Texas 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 Benavides Texas 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 Rotomolding Method in Detail

This molding operation has been used since earlier times for creatingvseverl items. Egyptians for example, employed roto-molding methods in the making of ceramics. The Swiss were also applying this rotation design to create hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this procedure some time between 1940 and 1950. Given that it was thought of to be a somewhat slow-moving procedure, the method has however taken long to become popular

1. Mold readying.
A fixed amount of polymer in grain form is loaded into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel component. The colour needed for the final item is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic manufacturing.

Pre-heating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then secured and installed within the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The rotation is done slowly, about 20 rotations per min. Something that is crucial at this moment is the amount of time the mold will spend within the oven. If it overstays, the product will lose stability and durability, making a weak product. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which generates bubbles in the finished product.

3. Mould cooling.
When the component has sufficiently spent the correct amount of time in the oven, it is then extracted 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 reduces somewhat for ease of extraction from the mold. This is another measure that relies a lot on the correct timing, since quick cooling reduces the material too quick, causing bending of the item.

4. The removing or de-moulding step.
As soon as the material inside te mold has cooled successfully, the molder handling the procedure can then remove the finished product from the mold. The procedure is repeated from the beginning, supplying a series of exact items.

For more information on the different rotational rotomolding options offered for the Benavides TX 78341 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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