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

rotational molding-West Yarmouth-Rotational moulding refers to a plastic manufacturing technique that produces hollow stress-free items. The process utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying shapes, colors and sizes. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The function that makes this different from other plastic manufacturing techniques because no pressure is needed. It also has few rivals when it pertains to the creation of large size hollow items which are long-lasting and inexpensive.There is a wide range of items that are generated by this process including large water tanks, automobile products, sophisticated designed medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in regards to style 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 West Yarmouth MA 2673, 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 moulding 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-West Yarmouth-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 West Yarmouth 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 Method in Detail

This molding technique has been used since ancient times for creatingvseverl items. Egyptians for instance, utilized rotomoulding solutions in the making of ceramics. The Swiss were also using this rotation method to create hollow chocolate eggs. Some plastic items in the USA were developed utilizing this procedure some time between 1940 and 1950. The procedure has however taken very long to take affect because it was thought of as being a relatively slow-moving process

1. Mold fitting.
A fixed measure of polymer in powder form is loaded into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel substance. The colour chosen for the end goods 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 follows, 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 secured and positioned inside the oven.

2. The heat and fusion process.
Once within the oven, the mold is revolved 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 min. Something that is essential at this moment is the period of time the mold will spend inside the oven. If it stays to long, the product will lose value and strength, producing a faulty item. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the completed product line.

3. Mould cooling.
When the component 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 material cools, it shrinks slightly for ease of extraction from the mold. This is an additional measure that relies a lot on the correct timing, since rapid cooling decreases the material too fast, causing bending of the product.

4. The removing or de-moulding step.
When the material within te mould has cooled effectively, the person managing the process can then remove the finalized item from the mold. The procedure is repeated from the beginning, providing a series of similar product lines.

For more information on the different rotational rotomolding options offered for the West Yarmouth MA 2673 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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