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

rotational moulding-Colorado City-Rotational moulding refers to a plastic manufacturing practice that creates hollow stress-free product lines. The process uses high temperatures and bi axial rotation to come up with seamless, one piece products that have many different shapes, 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 forms.

The feature that makes this unique from other plastic manufacturing techniques in that no pressure is needed. It also has few contenders when it involves the production of sizable hollow products which are long lasting and inexpensive.There is a wide range of product lines that are developed by this process including large size water tanks, automobile items, sophisticated designed medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in terms of type and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Colorado City TX 79512, 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 rotomolding 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-Colorado City-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 Colorado City 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 operation has been used since early times for creatingvseverl items. Egyptians for example, applied rotational molding solutions in the producing of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were developed using this procedure some time between 1940 and 1950. Considering that it was considered to be a basically slow method, the system has however taken long to catch on

1. Mould prep work.
A predetermined quantity of polymer in powder form is packed into a hollow mould. The mold is usually made of cast aluminium or sheet steel material. The color chosen for the end 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 format of plastic production.

Pre-heating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then secured and installed inside the oven.

2. The heating up and fusion procedure.
Once placed into the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly, about 20 rotations per sixty seconds. The main thing that is important at this moment is the amount of time the mould will spend inside the oven. If it overstays, the component will lose stability and strength, producing a weak product. If it is taken out from the oven too early, the polymer will not have melted properly, which creates bubbles in the completed product.

3. Mould cooling down.
When the product has sufficiently 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 product cools, it shrinks slightly for ease of removal from the mold. This is yet another step that depends a lot on the correct timing, since quick cooling decreases the material too fast, causing warping of the item.

4. The unloading or de-molding phase.
Once the product within te mold has cooled correctly, the molder taking care of the operation can then extract the finished item from the mold. The function is repeated from the start, supplying a number of similar items.

For more information on the different rotational rotomolding options offered for the Colorado City TX 79512 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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