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

rotocasting-Eagle-Rotational molding refers to a plastic production procedure that generates hollow stress-free items. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying forms, colors and sizes. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing techniques because no pressure is involved. It also has few contenders when it pertains to the production of large size hollow products which are durable and inexpensive.There is a variety of items that are generated by this process including big water tanks, automobile materials, intricate shaped medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in regards to type and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Eagle CO 81631, 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 roto-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-Eagle-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 Colorado 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 Eagle Colorado 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 Method Components

This moulding operation has been used since ancient times for creatingvseverl items. Egyptians for instance, worked with rotocasting systems in the producing of ceramics. The Swiss were also making use of this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this technique some time between 1940 and 1950. The process has however taken long to catch on because it was considered as being a moderately slow process

1. Mold readying.
A fixed quantity of polymer in grain form is filled into a hollow mold. The mold is usually made from cast aluminium or sheet steel material. The colour wanted for the final item is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic engineering.

Preheating of the oven follows, 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 put into the oven.

2. The heating up and fusion process.
Once within the oven, the mold is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per minute. One thing that is essential at this point is the amount of time the mould will spend inside the oven. If it stays to long, the component will lose stability and durability, generating a weak product. If it is removed from the oven too early, the polymer will not have melted correctly, which creates bubbles in the finalized item.

3. Mold cooling.
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 a cool mist. When the component cools, it reduces slightly for ease of removal from the mold. This is one more step that relies a lot on the correct timing, since rapid cooling shrinks the material too rapidly, causing bending of the product.

4. The discharging or de-molding phase.
As soon as the product inside te mould has cooled effectively, the molder handling the procedure can then extract the finalized item from the mould. The technique is repeated from the beginning, making a series of exact items.

For more information on the different rotational rotomolding options offered for the Eagle CO 81631 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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