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

rotomolding-Osterville-Rotational moulding refers to a plastic manufacturing technique that generates hollow stress-free product lines. The function utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have several shapes, colors and sizes. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing processes that no pressure is needed. It also has few competitors when it comes to the manufacture of large size hollow items which are long-lasting and inexpensive.There is a wide range of items that are created by this process including large water tanks, automobile materials, complex molded medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in regards to design 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 Osterville MA 2655, 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 rotocasting 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-Osterville-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 Osterville 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 Roto-Molding Process in Detail

This moulding method has been used since ancient times for creatingvseverl items. Egyptians for example, employed rotocasting systems in the of ceramics. The Swiss were also utilizing this rotation approach to make hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this approach some time between 1940 and 1950. The procedure has however taken long to take affect because it was looked at to be a very slow-moving process

1. Mould fitting.
A predetermined volume of polymer in particle form is filled into a hollow mold. The mould is usually made from cast aluminium or sheet steel component. The coloring needed for the final 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 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 secured and put inside the oven.

2. The heating and fusion phase.
Once inside the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done slowly, about 20 rotations per minute. The main thing that is vital at this point is the amount of time the mold will spend inside the oven. If it stays to long, the material will lose stability and strength, creating a poor item. If it is removed from the oven prematurely, the polymer will not have flowed correctly, which generates bubbles in the completed product.

3. Mold cooling.
When the material has completely 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 material cools, it reduces somewhat for ease of removal from the mold. This is an additional measure that depends upon a lot on the right timing, since quick cooling shrinks the material too quick, causing bending of the item.

4. The un-loading or de-molding phase.
Once the product inside te mould has cooled properly, the person handling the procedure can then extract the finished item from the mold. The technique is repeated from the start, providing a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Osterville MA 2655 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 molded

Local Resources

Production Example
Google Map