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

rotomoulding-Revere-Rotational moulding pertains to a plastic manufacturing practice that generates hollow stress-free items. The function utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have various designs, colors and sizes. This technique is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing methods because no pressure is called for. It also has few rivals when it comes down to the manufacture of sizable hollow products which are long lasting and inexpensive.There is a wide variety of product lines that are generated by this process including large size water tanks, automobile items, complex designed medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in terms of design and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Revere MA 2151, 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 Molding-Revere-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 Revere 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 Procedure in Detail

This moulding system has been used since early times for creatingvseverl items. Egyptians for example, worked with rotomoulding methods in the of ceramics. The Swiss were also applying this rotation design to generate hollow chocolate eggs. Some plastic product lines in the USA were made utilizing this procedure some time between 1940 and 1950. The procedure has however taken very long to take affect because it was looked at to be a relatively slow process

1. Mold prep work.
A fixed amount of polymer in grain form is loaded into a hollow mold. The mould is usually made of cast aluminium or sheet steel material. The color preferred for the end item is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic engineering.

Preheating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then locked and positioned into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The spinning is done slowly and gradually, about 20 revolutions per min. The main thing that is crucial at this moment is the amount of time the mold will spend within the oven. If it stays to long, the product will lose stability and strength, creating a faulty item. If it is removed from the oven too early, the polymer will not have liquefied properly, which produces bubbles in the finalized product.

3. Mould cooling down.
When the product 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 creates a cool mist. When the component cools, it shrinks a little for ease of extraction from the mold. This is another procedure that depends upon a lot on the right timing, since rapid cooling shrinks the material too quickly, causing bending of the material.

4. The removing or de-moulding phase.
When the component within te mold has cooled correctly, the molder managing the procedure can then take out the finished product from the mold. The function is repeated from the start, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Revere MA 2151 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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