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

rotocasting-Hyden-Rotational molding refers to a plastic manufacturing method that produces hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece items that have various designs, colors and sizes. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing methods that no pressure is involved. It also has few rivals when it involves the creation of sizable hollow items which are resilient and inexpensive.There is a variety of product lines that are produced by this process including big water tanks, automobile items, intricate designed medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in terms of style and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Hyden KY 41749, 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-Hyden-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 Hyden 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 Method Components

This molding operation has been used since ancient times for creatingvseverl product lines. Egyptians for instance, used rotational molding methods in the producing of ceramics. The Swiss were also applying this rotation format to create hollow chocolate eggs. Some plastic items in the USA were developed using this approach some time between 1940 and 1950. Because it was looked at to be a very slow method, the system has however taken long to catch on

1. Mould prep work.
A fixed volume of polymer in powder form is packed into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel substance. The color tone needed for the final 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 starts, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then sealed and placed inside the oven.

2. The heating up and fusion procedure.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The spinning is done slowly, about 20 spins per min. One thing that is important at this moment is the period of time the mold will spend inside the oven. If it stays to long, the material will lose value and strength, creating a poor item. If it is taken out from the oven too early, the polymer will not have liquefied properly, which creates bubbles in the finished item.

3. Mould cooling.
When the material 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 creates a cool mist. When the product cools, it reduces somewhat for ease of removal from the mould. This is an additional procedure that depends upon a lot on the right timing, since rapid cooling decreases the material too quick, causing warping of the product.

4. The removing or de-molding phase.
When the component inside te mold has cooled properly, the molder managing the procedure can then remove the finalized item from the mould. The function is repeated from the beginning, giving a number of identical product lines.

For more information on the different rotational molding options offered for the Hyden KY 41749 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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