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

roto-molding-Greeley-Rotational moulding pertains to a plastic production solution that creates hollow stress-free products. The procedure uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have a wide range of forms, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The attribute that makes this unique from other plastic manufacturing techniques in that no pressure is called for. It also has few competitors when it comes down to the production of large hollow products which are long lasting and inexpensive.There is a wide variety of products that are produced by this process including large size water tanks, automobile products, complex molded medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in regards to type and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Greeley CO 80631, 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 rotocasting 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-Greeley-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 Greeley 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 Rotomolding Process in Detail

This moulding process has been used since earlier times for creatingvseverl items. Egyptians for instance, employed rotomoulding procedures in the making of ceramics. The Swiss were also applying this rotation technique to generate hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this method some time between 1940 and 1950. Because it was looked at to be a rather slow procedure, the procedure has however taken long to catch on

1. Mold fitting.
A predetermined quantity of polymer in powder form is filled into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel component. The coloration desired for the finished goods 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.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then sealed and placed into the oven.

2. The heat and fusion step.
Once within the oven, the mould is spun on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The turning is done slowly and gradually, about 20 rotations per minute. The main thing that is crucial at this moment is the amount of time the mould will spend within the oven. If it overstays, the material will lose stability and durability, making a weak item. If it is removed from the oven too early, the polymer will not have flowed properly, which creates bubbles in the finished item.

3. Mold cooling down.
When the material has completely 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 generates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mold. This is an additional procedure that depends upon a lot on the correct timing, since rapid cooling shrinks the material too rapidly, causing warping of the item.

4. The discharging or de-molding step.
As soon as the product within te mould has cooled properly, the person managing the procedure can then take out the completed product from the mold. The technique is repeated from the beginning, supplying a number of exact products.

For more information on the different rotational rotomolding options offered for the Greeley CO 80631 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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