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

rotomolding-Ashby-Rotational moulding refers to a plastic production technique that creates hollow stress-free items. The method relies on high temperatures and bi axial rotation to follow up with seamless, one piece items that have various forms, colors and sizes. This technique is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing procedures that no pressure is required. It also has few rivals when it comes to the manufacture of sizable hollow products which are resilient and inexpensive.There is a variety of product lines that are generated by this process including large size water tanks, automobile products, complex shaped medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to type 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 Ashby MA 1431, 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-Ashby-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 Ashby 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 Procedure Components

This moulding operation has been used since early times for creatingvseverl products. Egyptians for example, utilized roto-molding solutions in the manufacturing of ceramics. The Swiss were also applying this rotation method to generate hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this technique some time between 1940 and 1950. Because it was considered to be a very slow procedure, the procedure has however taken long to become popular

1. Mould prep work.
A fixed measure of polymer in particle form is packed into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel substance. The color desired for the end item is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic manufacturing.

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 secured and placed within the oven.

2. The heating up and fusion phase.
Once inside the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done slowly and gradually, about 20 revolutions per min. Something that is essential at this point is the amount of time the mold will spend within the oven. If it stays to long, the material will lose value and durability, producing a poor product. If it is extracted from the oven too early, the polymer will not have flowed correctly, which produces bubbles in the finished product.

3. Mould cooling.
When the material has sufficiently spent the correct 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 somewhat for ease of extraction from the mould. This is yet another step that depends a lot on the right timing, since quick cooling reduces the material too fast, causing warping of the item.

4. The offloading or de-moulding phase.
As soon as the product inside te mold has cooled correctly, the person handling the operation can then take out the finalized product from the mold. The procedure is repeated from the beginning, giving a series of similar products.

For more information on the different rotational rotomolding options offered for the Ashby MA 1431 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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