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

rotational molding-Colfax-Rotational moulding pertains to a plastic production method that produces hollow stress-free product lines. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different forms, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing procedures because no pressure is involved. It also has few competitors when it comes down to the creation of large hollow items which are long lasting and inexpensive.There is a wide range of items that are created by this process including big water tanks, automobile items, sophisticated shaped medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in regards to design 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 Colfax NC 27235, 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 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-Colfax-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 North Carolina 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 Colfax North Carolina 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 Components

This molding technique has been used since ancient times for creatingvseverl items. Egyptians for example, worked with rotational molding solutions in the producing of ceramics. The Swiss were also working with this rotation type to make hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. Given that it was considered to be a relatively slow-moving system, the technique has however taken long to catch on

1. Mold prep work.
A predetermined measure of polymer in particle form is packed into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel component. The color tone intended for the finished product 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 format of plastic engineering.

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 mould with the powdered polymer is then locked and placed into the oven.

2. The heating up and fusion procedure.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The rotation is done slowly and gradually, about 20 spins per sixty seconds. One thing that is crucial at this point is the period of time the mould will spend inside the oven. If it overstays, the material will lose stability and durability, generating a poor item. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the completed item.

3. Mold cooling down.
When the component has sufficiently spent the enough of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the product cools, it reduces somewhat for ease of removal from the mold. This is another measure that relies a lot on the right timing, since rapid cooling decreases the material too quickly, causing warping of the product.

4. The un-loading or de-molding step.
Once the material inside te mold has cooled successfully, the molder managing the process can then extract the completed product from the mould. The procedure is repeated from the beginning, making a number of exact items.

For more information on the different rotational rotomolding options offered for the Colfax NC 27235 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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