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

roto-molding-Fountain City-Rotational moulding refers to a plastic manufacturing procedure that produces hollow stress-free product lines. The method utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have a wide range of designs, sizes and colors. This procedure is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing methods in that no pressure is involved. It also has few competitors when it comes down to the manufacture of sizable hollow products which are durable and inexpensive.There is a wide variety of product lines that are developed by this process including large water tanks, automobile products, complex molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in terms of design and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Fountain City IN 47341, 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-Fountain City-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 Fountain City 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 Rotomolding Procedure Components

This molding technique has been used since early times for creatingvseverl product lines. Egyptians for example, employed roto-molding techniques in the manufacturing of ceramics. The Swiss were also utilizing this rotation type to make hollow chocolate eggs. Some plastic items in the USA were made utilizing this procedure some time between 1940 and 1950. Due to the fact that it was viewed to be a fairly slow process, the approach has however taken long to become popular

1. Mold prep work.
A predetermined volume of polymer in particle form is packed into a hollow mould. The mould is usually made from cast aluminium or sheet steel material. The colour desired for the finished product 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 design of plastic assembly.

Pre-heating of the oven starts, and it may 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 locked and placed within the oven.

2. The heating and fusion step.
Once inside the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done gradually, about 20 spins per min. Something that is vital at this point is the period of time the mold will spend inside the oven. If it overstays, the material will lose value and strength, generating a poor item. If it is removed from the oven prematurely, the polymer will not have liquefied properly, which generates bubbles in the completed product.

3. Mold cooling.
When the material has completely spent the right amount 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 a little for ease of removal from the mould. This is one more procedure that depends a lot on the right timing, since quick cooling decreases the material too quickly, causing bending of the product.

4. The un-loading or de-molding step.
When the material inside te mould has cooled properly, the person handling the operation can then take out the finalized item from the mould. The process is repeated from the start, making a series of identical items.

For more information on the different rotational rotomolding options offered for the Fountain City IN 47341 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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