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

rotational moulding-Mocksville-Rotational moulding pertains to a plastic manufacturing solution that generates hollow stress-free product lines. The technique relies on high temperatures and bi axial rotation to come up with seamless, one piece items that have various shapes, sizes and colors. This method is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing procedures because no pressure is called for. It also has few competitors when it involves the production of large hollow products which are long-lasting and inexpensive.There is a wide range of products that are generated by this process including large water tanks, automobile materials, intricate molded medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is due to the versatility in terms of type and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Mocksville NC 27028, 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 moulding 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-Mocksville-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 Mocksville 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 Roto-Molding Process in Detail

This moulding system has been used since earlier times for creatingvseverl items. Egyptians for instance, applied roto-molding systems in the of ceramics. The Swiss were also utilizing this rotation type to make hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. The procedure has however taken very long to take affect because it was thought of as being a somewhat slow-moving process

1. Mold fitting.
A predetermined quantity of polymer in powder form is filled into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel component. The color tone preferred for the finished item 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 style of plastic production.

Preheating of the oven follows, and it may 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 locked and inserted within the oven.

2. The heating and fusion procedure.
Once placed into the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The turning is done slowly, about 20 spins per min. The main thing that is critical at this moment is the amount of time the mold will spend inside the oven. If it overstays, the component will lose value and strength, creating a faulty item. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which generates bubbles in the finished product line.

3. Mold cooling.
When the component has sufficiently spent the right amount 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 generates a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mold. This is another measure that depends upon a lot on the correct timing, since rapid cooling reduces the material too fast, causing bending of the material.

4. The offloading or de-moulding phase.
Once the product within te mold has cooled properly, the molder managing the procedure can then extract the completed item from the mold. The function is repeated from the beginning, giving a series of exact items.

For more information on the different rotational rotomolding options offered for the Mocksville NC 27028 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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