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

rotocasting-Great Barrington-Rotational moulding refers to a plastic manufacturing solution that generates hollow stress-free items. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have various designs, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The attribute that makes this different from other plastic manufacturing processes because no pressure is called for. It also has few competitors when it involves the creation of sizable hollow products which are long-lasting and inexpensive.There is a wide range of items that are developed by this process including large water tanks, automobile materials, complex shaped medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in terms of design 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 Great Barrington MA 1230, 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 rotomoulding 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 Molding-Great Barrington-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 Massachusetts 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 Great Barrington Massachusetts 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 procedure has been used since ancient times for creatingvseverl products. Egyptians for example, employed roto-molding solutions in the creating of ceramics. The Swiss were also applying this rotation method to make hollow chocolate eggs. Some plastic items in the USA were made using this method some time between 1940 and 1950. Given that it was thought of to be a fairly slow-moving technique, the system has however taken long to become popular

1. Mould readying.
A predetermined measure of polymer in powder form is packed into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel material. The coloration intended 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 format of plastic assembly.

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 mould with the powdered polymer is then locked and inserted within the oven.

2. The heating up and fusion procedure.
Once placed into the oven, the mold is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done slowly and gradually, about 20 rotations per min. The main thing that is critical at this moment is the amount of time the mould will spend within the oven. If it stays to long, the component will lose value and strength, making a faulty item. If it is removed from the oven prematurely, the polymer will not have flowed correctly, which creates bubbles in the finished product.

3. Mold cooling.
When the component has sufficiently spent the enough of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces a little for ease of extraction from the mold. This is another step that relies a lot on the right timing, since rapid cooling shrinks the material too fast, causing bending of the product.

4. The discharging or de-molding phase.
As soon as the product within te mould has cooled adequately, the person handling the procedure can then take out the finished item from the mold. The procedure is repeated from the beginning, providing a series of exact products.

For more information on the different rotational rotomolding options offered for the Great Barrington MA 1230 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 custom molding

Local Resources

Production Example
Google Map