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

roto-molding-Medway-Rotational molding refers to a plastic production method that produces hollow stress-free items. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have several forms, colors and sizes. This procedure is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this unique from other plastic manufacturing techniques that no pressure is required. It also has few competitors when it involves the production of large hollow products which are long lasting and inexpensive.There is a wide range of products that are generated by this process including large water tanks, automobile items, intricate designed medical products, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in terms of type 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 Medway ME 4460, 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 roto-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

Custom Molded-Medway-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 Maine 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 Medway Maine 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 process has been used since ancient times for creatingvseverl items. Egyptians for instance, applied rotational molding systems in the of ceramics. The Swiss were also making use of this rotation format to create hollow chocolate eggs. Some plastic products in the USA were developed using this procedure some time between 1940 and 1950. Given that it was looked at to be a very slow procedure, the procedure has however taken long to catch on

1. Mould readying.
A predetermined measure of polymer in powder form is packed into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel material. The color tone wanted for the finished 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 engineering.

Pre-heating of the oven follows, and it may 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 sealed and placed within the oven.

2. The heating and fusion procedure.
Once within the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 spins per sixty seconds. One thing that is essential at this moment is the period of time the mould will spend within the oven. If it overstays, the component will lose stability and durability, generating a weak item. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the completed item.

3. Mold cooling down.
When the component has completely 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 material cools, it reduces a little for ease of removal from the mould. This is an additional procedure that depends upon a lot on the correct timing, since rapid cooling reduces the material too rapidly, causing bending of the material.

4. The discharging or de-moulding step.
Once the component within te mold has cooled successfully, the person handling the operation can then extract the finished product from the mold. The process is repeated from the beginning, providing a series of similar products.

For more information on the different rotational rotomolding options offered for the Medway ME 4460 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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