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

rotocasting-Summit-Rotational moulding refers to a plastic manufacturing practice that generates hollow stress-free items. The function uses high temperatures and bi axial rotation to follow up with seamless, one piece objects that have varying forms, sizes and colors. This technique is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing methods in that no pressure is involved. It also has few contenders when it pertains to the production of large hollow items which are durable and inexpensive.There is a variety of product lines that are generated by this process including big water tanks, automobile products, sophisticated designed medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in regards to style and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Summit KY 42783, 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 roto-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-Summit-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 Summit 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 Components

This moulding process has been used since early times for creatingvseverl product lines. Egyptians for example, worked with roto-molding techniques in the of ceramics. The Swiss were also making use of this rotation technique to generate hollow chocolate eggs. Some plastic product lines in the USA were created using this procedure some time between 1940 and 1950. The procedure has however taken long to catch on because it was considered to be a pretty slow-moving process

1. Mold preparation.
A fixed quantity of polymer in particle form is packed into a hollow mold. The mould is usually made of cast aluminium or sheet steel material. The coloration chosen for the final item 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 type of plastic manufacturing.

Preheating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then secured and inserted inside the oven.

2. The heat and fusion phase.
Once within the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The spinning is done gradually, about 20 rotations per sixty seconds. One thing that is essential at this point is the period of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, creating a faulty product. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which generates bubbles in the finished item.

3. Mould cooling down.
When the product has completely spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mould. This is yet another procedure that depends upon a lot on the right timing, since rapid cooling shrinks the material too rapidly, causing warping of the product.

4. The unloading or de-moulding step.
As soon as the component inside te mold has cooled properly, the molder managing the operation can then extract the finished item from the mold. The function is repeated from the beginning, giving a series of exact products.

For more information on the different rotational molding options offered for the Summit KY 42783 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to custom molding

Local Resources

Production Example
Google Map