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

rotational moulding-Beverly-Rotational molding refers to a plastic production practice that makes hollow stress-free items. The method utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have several shapes, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing techniques in that no pressure is required. It also has few competitors when it comes down to the manufacture of large size hollow products which are long-lasting and inexpensive.There is a wide range of product lines that are developed by this process including big water tanks, automobile products, sophisticated shaped medical items, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to design 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 Beverly KY 40913, 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 Molded-Beverly-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 Kentucky 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 Beverly Kentucky 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 Procedure in Detail

This molding procedure has been used since early times for creatingvseverl items. Egyptians for instance, applied rotocasting systems in the manufacturing of ceramics. The Swiss were also employing this rotation type to make hollow chocolate eggs. Some plastic items in the USA were developed using this approach some time between 1940 and 1950. The procedure has however taken very long to take affect because it was considered to be a pretty slow-moving process

1. Mold prep work.
A fixed quantity of polymer in powder form is loaded into a hollow mould. The mould is usually built from cast aluminium or sheet steel substance. The coloration preferred for the end 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 manufacturing.

Pre-heating of the oven follows, and it can 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 secured and positioned within the oven.

2. The heat and fusion phase.
Once within the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The turning is done gradually, about 20 spins per sixty seconds. The main thing that is vital at this moment is the period of time the mould will spend within the oven. If it stays to long, the component will lose value and durability, producing a poor product. If it is removed from the oven too early, the polymer will not have melted properly, which creates bubbles in the finalized product.

3. Mold cooling down.
When the product has sufficiently spent the correct amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks slightly for ease of extraction from the mould. This is another measure that relies a lot on the correct timing, since rapid cooling shrinks the material too fast, causing warping of the item.

4. The offloading or de-molding phase.
Once the product within te mould has cooled effectively, the molder managing the operation can then remove the finished item from the mold. The technique is repeated from the start, making a number of identical products.

For more information on the different rotational molding options offered for the Beverly KY 40913 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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