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

rotomolding-Whitinsville-Rotational moulding refers to a plastic production practice that creates hollow stress-free items. The process relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have several shapes, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing processes that no pressure is called for. It also has few contenders when it involves the manufacture of sizable hollow items which are long lasting and inexpensive.There is a wide range of products that are generated by this process including large size water tanks, automobile materials, complex designed medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in terms of design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Whitinsville MA 1588, 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 rotomolding 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 Manufacturing-Whitinsville-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 Whitinsville 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 Rotomoulding Process Components

This moulding procedure has been used since early times for creatingvseverl items. Egyptians as an example, worked with rotomoulding systems in the of ceramics. The Swiss were also making use of this rotation format to make hollow chocolate eggs. Some plastic products in the USA were developed utilizing this method some time between 1940 and 1950. The process has however taken very long to take affect because it was thought of as being a somewhat slow-moving process

1. Mold readying.
A fixed volume of polymer in particle form is loaded into a hollow mould. The mould is usually composeded of cast aluminium or sheet steel component. The color tone needed 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 design of plastic manufacturing.

Pre-heating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then locked and put inside the oven.

2. The heating up 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 mould. The spinning is done gradually, about 20 rotations per min. The main thing that is essential at this point is the amount of time the mold will spend inside the oven. If it overstays, the product will lose value and durability, generating a faulty product. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which creates bubbles in the finalized product line.

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 may be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it shrinks slightly for ease of extraction from the mold. This is another step that depends a lot on the correct timing, since quick cooling shrinks the material too quick, causing bending of the product.

4. The unloading or de-molding phase.
Once the component within te mould has cooled successfully, the person managing the operation can then extract the finalized item from the mould. The function is repeated from the beginning, giving a number of exact products.

For more information on the different rotational rotomolding options offered for the Whitinsville MA 1588 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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