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

roto-molding-Brook-Rotational moulding pertains to a plastic production method that creates hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a wide range of designs, sizes and colors. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing procedures that no pressure is called for. It also has few contenders when it pertains to the manufacture of large size hollow products which are long-lasting and inexpensive.There is a wide variety of products that are developed by this process including large water tanks, automobile products, complex molded medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in regards to design and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Brook IN 47922, 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

Plastic Manufacturing-Brook-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 Brook 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 Process in Detail

This molding technique has been used since earlier times for creatingvseverl products. Egyptians for example, worked with rotomoulding techniques in the creating of ceramics. The Swiss were also employing this rotation approach to generate hollow chocolate eggs. Some plastic products in the USA were developed using this procedure some time between 1940 and 1950. The procedure has however taken long to take affect because it was considered as being a somewhat slow process

1. Mold fitting.
A predetermined amount of polymer in grain form is packed into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel component. The colour preferred for the final goods is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic engineering.

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 mould with the powdered polymer is then sealed and positioned into the oven.

2. The heat and fusion step.
Once inside the oven, the mold is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The spinning is done gradually, about 20 rotations per sixty seconds. The main thing that is important at this moment is the period of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, generating a faulty item. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the finalized product.

3. Mould cooling down.
When the material has sufficiently spent the enough 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 a little for ease of removal from the mould. This is one more step that relies a lot on the correct timing, since rapid cooling shrinks the material too quickly, causing bending of the product.

4. The un-loading or de-moulding phase.
As soon as the material within te mould has cooled properly, the person managing the procedure can then remove the finalized item from the mold. The process is repeated from the start, making a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Brook IN 47922 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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