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

roto-molding-Caddo Mills-Rotational molding pertains to a plastic manufacturing practice that produces hollow stress-free products. The function utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have many different shapes, sizes and colors. This technique is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing procedures that no pressure is involved. It also has few rivals when it comes down to the manufacture of large hollow products which are durable and inexpensive.There is a wide range of items that are produced by this process including large water tanks, automobile items, complex designed medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in terms of type 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 Caddo Mills TX 75135, 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

Custom Molding-Caddo Mills-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 Caddo Mills 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 earlier times for creatingvseverl product lines. Egyptians for example, used roto-molding techniques in the of ceramics. The Swiss were also applying this rotation method to create hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. The technique has however taken very long to catch on because it was considered to be a relatively slow process

1. Mold prep work.
A predetermined measure of polymer in grain form is filled into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel component. The coloring desired for the finished 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 type of plastic assembly.

Preheating 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 mold with the powdered polymer is then sealed and put within the oven.

2. The heat and fusion step.
Once inside the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done gradually, about 20 revolutions per min. Something that is vital at this point is the amount of time the mould will spend inside the oven. If it overstays, the material will lose value and strength, creating a faulty product. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which develops bubbles in the finished product line.

3. Mould cooling.
When the component has sufficiently spent the right 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 generates a cool mist. When the product cools, it reduces slightly for ease of removal from the mold. This is yet another step that relies a lot on the correct timing, since quick cooling shrinks the material too quickly, causing bending of the product.

4. The offloading or de-molding step.
Once the material within te mould has cooled properly, the person handling the operation can then remove the completed product from the mold. The function is repeated from the start, giving a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Caddo Mills TX 75135 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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