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

rotomolding-Scranton-Rotational molding refers to a plastic manufacturing practice that generates hollow stress-free products. The process relies upon high temperatures and bi axial rotation to follow up with seamless, one piece objects that have several shapes, colors and sizes. This procedure is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

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 production of large size hollow items which are resilient and inexpensive.There is a wide variety of product lines that are produced by this process including big water tanks, automobile items, intricate molded medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in regards to type and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Scranton SC 29591, 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 rotational 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

Plastic Molding-Scranton-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 South Carolina 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 Scranton South Carolina 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 in Detail

This moulding operation has been used since early times for creatingvseverl items. Egyptians for example, employed rotational molding techniques in the of ceramics. The Swiss were also working with this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were developed using this technique some time between 1940 and 1950. The process has however taken long to catch on because it was considered as being a very slow process

1. Mold preparation.
A predetermined measure of polymer in powder form is packed into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel substance. The color tone intended for the end product 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 style of plastic manufacturing.

Pre-heating 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 mold with the powdered polymer is then locked and installed within the oven.

2. The heating up and fusion phase.
Once placed into the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The rotation is done slowly and gradually, about 20 spins per sixty seconds. One thing that is vital at this moment is the amount of time the mold will spend within the oven. If it overstays, the component will lose stability and strength, making a weak product. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which creates bubbles in the finished item.

3. Mold cooling down.
When the component has completely spent the enough 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 generates a cool mist. When the product cools, it reduces a little for ease of extraction from the mould. This is an additional measure that depends upon a lot on the ideal timing, since rapid cooling decreases the material too fast, causing bending of the product.

4. The discharging or de-molding step.
When the component within te mold has cooled properly, the molder handling the process can then extract the finished product from the mould. The procedure is repeated from the beginning, giving a series of identical products.

For more information on the different rotational rotomolding options offered for the Scranton SC 29591 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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