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

rotational molding-Wichita Falls-Rotational moulding refers to a plastic manufacturing practice that makes hollow stress-free product lines. The process depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have different designs, colors and sizes. This method is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing methods that no pressure is required. It also has few competitors when it pertains to the manufacture of large size hollow items which are durable and inexpensive.There is a wide range of items that are developed by this process including large size water tanks, automobile materials, complex shaped medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the versatility in regards to type and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Wichita Falls TX 76301, 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 Products-Wichita Falls-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 Wichita Falls 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 Rotomoulding Procedure Components

This moulding technique has been used since ancient times for creatingvseverl items. Egyptians as an example, utilized rotational molding systems in the manufacturing of ceramics. The Swiss were also working with this rotation method to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this method some time between 1940 and 1950. The procedure has however taken very long to catch on because it was looked at as being a relatively slow-moving process

1. Mould readying.
A fixed volume of polymer in powder form is filled into a hollow mold. The mold is usually built from cast aluminium or sheet steel material. The coloration preferred for the final item 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 style of plastic engineering.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then locked and positioned inside the oven.

2. The heating up and fusion process.
Once within the oven, the mould is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The spinning is done gradually, about 20 rotations per sixty seconds. Something that is vital 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 poor item. If it is extracted from the oven prematurely, the polymer will not have melted properly, which produces bubbles in the completed product line.

3. Mold cooling down.
When the material has sufficiently spent the correct amount 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 creates a cool mist. When the product cools, it reduces slightly for ease of removal from the mold. This is yet another measure that relies a lot on the correct timing, since rapid cooling decreases the material too quickly, causing warping of the product.

4. The removing or de-moulding step.
Once the product within te mould has cooled effectively, the molder taking care of the operation can then extract the completed product from the mould. The procedure is repeated from the start, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Wichita Falls TX 76301 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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