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

rotational moulding-Seymour-Rotational moulding pertains to a plastic manufacturing method that produces hollow stress-free products. The process relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have many different designs, colors and sizes. This technique is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing processes in that no pressure is called for. It also has few rivals when it comes down to the production of sizable hollow products which are long-lasting and inexpensive.There is a wide variety of product lines that are created by this process including large size water tanks, automobile materials, intricate shaped medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in regards to design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Seymour IN 47274, 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 rotomolding 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 Manufacturing-Seymour-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 Indiana 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 Seymour Indiana 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 Method Components

This moulding operation has been used since early times for creatingvseverl product lines. Egyptians for instance, applied rotocasting solutions in the of ceramics. The Swiss were also employing this rotation design to generate hollow chocolate eggs. Some plastic product lines in the USA were created using this procedure some time between 1940 and 1950. Since it was thought of to be a rather slow technique, the procedure has however taken long to catch on

1. Mould prep work.
A predetermined amount of polymer in grain form is packed into a hollow mould. The mold is usually made of cast aluminium or sheet steel material. The color intended for the final item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic assembly.

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

2. The heat and fusion step.
Once inside the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done slowly and gradually, about 20 rotations per minute. One thing that is essential at this point is the period of time the mould will spend within the oven. If it overstays, the component will lose stability and durability, producing a weak item. If it is extracted from the oven too early, the polymer will not have melted properly, which creates bubbles in the completed item.

3. Mould cooling down.
When the component has sufficiently spent the enough of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces somewhat for ease of removal from the mold. This is yet another procedure that depends upon a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing warping of the item.

4. The unloading or de-molding step.
Once the component inside te mold has cooled correctly, the molder managing the process can then take out the finalized product from the mould. The technique is repeated from the start, supplying a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Seymour IN 47274 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