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

rotocasting-Dilley-Rotational molding pertains to a plastic production procedure that creates hollow stress-free products. The technique relies on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have various forms, colors and sizes. This method is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this unique from other plastic manufacturing processes that no pressure is needed. It also has few rivals when it pertains to the creation of large hollow items which are resilient and inexpensive.There is a wide variety of items that are developed by this process including large water tanks, automobile materials, sophisticated molded medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in terms of style 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 Dilley TX 78017, 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 Molded-Dilley-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 Dilley 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 molding technique has been used since earlier times for creatingvseverl items. Egyptians as an example, utilized rotocasting methods in the creating of ceramics. The Swiss were also employing this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were created using this approach some time between 1940 and 1950. Since it was regarded to be a very slow approach, the system has however taken long to catch on

1. Mould preparation.
A fixed amount of polymer in particle form is loaded into a hollow mold. The mould is usually made from cast aluminium or sheet steel material. The coloration chosen for the final product 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 design of plastic manufacturing.

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

2. The heat and fusion phase.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The turning is done gradually, about 20 revolutions per min. One thing that is vital at this point is the period of time the mold will spend within the oven. If it overstays, the component will lose stability and strength, creating a poor product. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which produces bubbles in the completed product.

3. Mold cooling down.
When the material has completely spent the correct amount of time in the oven, it is then extracted 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 slightly for ease of extraction from the mould. This is another procedure that depends a lot on the ideal timing, since quick cooling shrinks the material too rapidly, causing warping of the item.

4. The offloading or de-molding step.
Once the product inside te mold has cooled correctly, the molder taking care of the operation can then extract the finished product from the mold. The function is repeated from the start, giving a series of similar items.

For more information on the different rotational rotomolding options offered for the Dilley TX 78017 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 molded

Local Resources

Production Example
Google Map