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

rotational molding-Port Arthur-Rotational molding refers to a plastic production practice that creates hollow stress-free items. The function relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of forms, sizes and colors. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing methods because no pressure is involved. It also has few rivals when it involves the creation of large size hollow items which are durable and inexpensive.There is a wide range of product lines that are generated by this process including large water tanks, automobile products, intricate shaped medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to type and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Port Arthur TX 77640, 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 moulding 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-Port Arthur-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 Port Arthur 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 product lines. Egyptians for instance, used roto-molding systems in the of ceramics. The Swiss were also working with this rotation format to generate hollow chocolate eggs. Some plastic products in the USA were made utilizing this procedure some time between 1940 and 1950. The technique has however taken very long to catch on because it was thought of as being a very slow-moving process

1. Mold fitting.
A fixed volume of polymer in particle form is packed into a hollow mould. The mold is usually crafted from cast aluminium or sheet steel material. The color needed for the finished 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 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 mold with the powdered polymer is then sealed and put into the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The turning is done slowly, about 20 spins per minute. One thing that is important at this moment is the period of time the mold will spend inside the oven. If it stays to long, the component will lose value and durability, creating a weak item. If it is extracted from the oven prematurely, the polymer will not have melted correctly, which creates bubbles in the completed item.

3. Mold cooling down.
When the component has completely spent the correct amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it reduces somewhat for ease of removal from the mould. This is an additional procedure that relies a lot on the ideal timing, since rapid cooling shrinks the material too quick, causing bending of the item.

4. The removing or de-moulding step.
Once the material within te mold has cooled effectively, the person managing the process can then extract the finalized product from the mould. The procedure is repeated from the start, giving a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Port Arthur TX 77640 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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