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

rotocasting-Harper-Rotational molding pertains to a plastic manufacturing solution that produces hollow stress-free products. The process uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have various designs, sizes and colors. This method is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The attribute that makes this unique from other plastic manufacturing techniques in that no pressure is required. It also has few rivals when it comes down to the production of sizable hollow items which are long-lasting and inexpensive.There is a variety of items that are developed by this process including large water tanks, automobile materials, intricate shaped medical products, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the versatility 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 Harper TX 78631, 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-Harper-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 Harper 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 Roto-Molding Process in Detail

This moulding operation has been used since early times for creatingvseverl items. Egyptians as an example, employed roto-molding procedures in the manufacturing of ceramics. The Swiss were also applying this rotation method to create hollow chocolate eggs. Some plastic items in the USA were made utilizing this procedure some time between 1940 and 1950. Considering that it was considered to be a rather slow system, the method has however taken long to become popular

1. Mold fitting.
A fixed measure of polymer in grain form is loaded into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel substance. The color chosen for the final product is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic production.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then sealed and inserted into the oven.

2. The heating up and fusion phase.
Once inside the oven, the mold is turned on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The turning is done slowly, about 20 revolutions per min. Something that is critical at this point is the period of time the mold will spend within the oven. If it overstays, the component will lose value and strength, generating a faulty item. If it is extracted from the oven too early, the polymer will not have liquefied properly, which creates bubbles in the finished item.

3. Mould cooling down.
When the product has sufficiently spent the right 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 a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mould. This is one more measure that depends upon a lot on the ideal timing, since rapid cooling reduces the material too rapidly, causing bending of the product.

4. The removing or de-molding phase.
When the component within te mold has cooled adequately, the molder managing the procedure can then extract the finished item from the mould. The process is repeated from the start, making a series of exact items.

For more information on the different rotational rotomolding options offered for the Harper TX 78631 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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