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

rotomoulding-Cedaredge-Rotational moulding refers to a plastic production technique that produces hollow stress-free items. The process relies upon high temperatures and bi axial rotation to follow up with seamless, one piece products that have several forms, colors and sizes. This method is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing procedures that no pressure is called for. It also has few competitors when it comes down to the manufacture of large hollow items which are long-lasting and inexpensive.There is a wide range of products that are created by this process including large water tanks, automobile products, complex shaped medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in regards to design and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Cedaredge CO 81413, 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

Plastic Molding-Cedaredge-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 Cedaredge 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 Rotomoulding Procedure in Detail

This molding method has been used since ancient times for creatingvseverl items. Egyptians for instance, used rotocasting methods in the manufacturing of ceramics. The Swiss were also making use of this rotation method to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this approach some time between 1940 and 1950. Considering that it was considered to be a somewhat slow-moving procedure, the approach has however taken long to catch on

1. Mould readying.
A predetermined measure of polymer in particle form is packed into a hollow mould. The mould is usually comprised of cast aluminium or sheet steel material. The coloring intended 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.

Preheating 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 mold with the powdered polymer is then locked and installed inside the oven.

2. The heat and fusion phase.
Once placed into the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The spinning is done slowly and gradually, about 20 spins per sixty seconds. Something that is essential at this moment is the period of time the mould will spend inside the oven. If it overstays, the component will lose stability and durability, generating a poor product. If it is removed from the oven too early, the polymer will not have melted correctly, which develops bubbles in the finalized product line.

3. Mould cooling down.
When the product has completely 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 creates a cool mist. When the component cools, it shrinks somewhat for ease of removal from the mould. This is another measure that relies a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing warping of the item.

4. The unloading or de-molding phase.
Once the component within te mold has cooled adequately, the molder handling the process can then take out the finished product from the mold. The function is repeated from the start, providing a series of exact products.

For more information on the different rotational rotomolding options offered for the Cedaredge CO 81413 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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