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

rotational moulding-Southlake-Rotational molding pertains to a plastic production practice that produces hollow stress-free product lines. The process utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a wide range of shapes, colors and sizes. This procedure 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 procedures that no pressure is called for. It also has few competitors when it comes to the manufacture of sizable hollow products which are long-lasting and inexpensive.There is a variety of items that are developed by this process including large water tanks, automobile items, sophisticated shaped medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in regards to type and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Southlake TX 76092, 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 Molding-Southlake-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 Southlake 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 Method in Detail

This moulding process has been used since ancient times for creatingvseverl product lines. Egyptians for instance, worked with roto-molding solutions in the producing of ceramics. The Swiss were also utilizing this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this technique some time between 1940 and 1950. The process has however taken very long to take affect because it was considered as being a rather slow process

1. Mold preparation.
A predetermined quantity of polymer in particle form is filled into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel material. The coloration desired for the final goods 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 assembly.

Pre-heating of the oven starts, and it can 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 inserted into the oven.

2. The heating and fusion step.
Once within the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done gradually, about 20 spins per minute. Something that is crucial at this point is the amount of time the mold will spend within the oven. If it overstays, the component will lose stability and strength, creating a poor item. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the finished item.

3. Mold cooling down.
When the product has sufficiently spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the material cools, it shrinks somewhat for ease of removal from the mold. This is another measure that depends a lot on the correct timing, since rapid cooling shrinks the material too quick, causing warping of the product.

4. The removing or de-moulding step.
As soon as the material within te mould has cooled correctly, the person handling the procedure can then take out the finished item from the mould. The technique is repeated from the start, giving a series of identical product lines.

For more information on the different rotational rotomolding options offered for the Southlake TX 76092 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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