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

rotational moulding-Sheridan-Rotational molding pertains to a plastic production technique that creates hollow stress-free items. The process depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a wide range of forms, colors and sizes. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The feature that makes this different from other plastic manufacturing procedures in that no pressure is involved. It also has few contenders when it comes down to the manufacture of sizable hollow items which are long-lasting and inexpensive.There is a variety of products that are generated by this process including large size water tanks, automobile materials, complex shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in regards to design and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Sheridan IN 46069, 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-Sheridan-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 Sheridan 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 Roto-Molding Procedure Components

This moulding procedure has been used since ancient times for creatingvseverl product lines. Egyptians for instance, applied rotomoulding techniques in the manufacturing of ceramics. The Swiss were also utilizing this rotation design to create hollow chocolate eggs. Some plastic items in the USA were made using this procedure some time between 1940 and 1950. Considering that it was looked at to be a rather slow technique, the technique has however taken long to catch on

1. Mould fitting.
A fixed measure of polymer in grain form is filled into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel material. The coloration desired for the final goods 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 format of plastic manufacturing.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then locked and put within the oven.

2. The heating and fusion step.
Once inside the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 rotations per minute. The main thing that is crucial at this moment is the amount of time the mould will spend within the oven. If it overstays, the component will lose value and durability, generating a poor item. If it is extracted from the oven too early, the polymer will not have flowed properly, which produces bubbles in the finalized item.

3. Mould cooling.
When the product has sufficiently spent the correct amount of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is another measure that relies a lot on the right timing, since quick cooling reduces the material too fast, causing bending of the product.

4. The unloading or de-molding step.
Once the material inside te mold has cooled successfully, the molder managing the process can then extract the finished item from the mould. The technique is repeated from the beginning, making a series of exact items.

For more information on the different rotational rotomolding options offered for the Sheridan IN 46069 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 plastic products

Local Resources

Production Example
Google Map