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

rotational molding-Big Lake-Rotational moulding pertains to a plastic production method that creates hollow stress-free items. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have various forms, colors and sizes. This technique is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The function that makes this unique from other plastic manufacturing methods because no pressure is involved. It also has few contenders when it involves the production of large size hollow products which are durable and inexpensive.There is a variety of products that are developed by this process including large size water tanks, automobile products, complex molded medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in terms of style 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 Big Lake TX 76932, 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 rotational molding 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-Big Lake-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 Big Lake 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 process has been used since earlier times for creatingvseverl items. Egyptians as an example, worked with rotational molding systems in the manufacturing of ceramics. The Swiss were also applying this rotation format to generate hollow chocolate eggs. Some plastic items in the USA were manufactured using this procedure some time between 1940 and 1950. Since it was viewed to be a basically slow system, the process has however taken long to catch on

1. Mould readying.
A fixed quantity of polymer in powder form is packed into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel material. The coloring wanted for the end goods is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic production.

Preheating of the oven follows, and it may 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 positioned within the oven.

2. The heating up and fusion step.
Once within the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The turning is done slowly, about 20 revolutions per min. One thing that is vital at this point is the amount of time the mold will spend within the oven. If it stays to long, the product will lose stability and strength, making a weak product. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the completed product.

3. Mould cooling.
When the product has completely 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 generates a cool mist. When the material cools, it shrinks a little for ease of extraction from the mold. This is one more measure that relies a lot on the right timing, since rapid cooling reduces the material too rapidly, causing warping of the material.

4. The un-loading or de-moulding step.
When the material within te mould has cooled effectively, the person handling the operation can then take out the completed item from the mould. The function is repeated from the beginning, giving a series of exact product lines.

For more information on the different rotational rotomolding options offered for the Big Lake TX 76932 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to custom molding

Local Resources

Production Example
Google Map