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

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

The attribute that makes this different from other plastic manufacturing processes that no pressure is involved. It also has few competitors when it comes down to the manufacture of large hollow products which are long-lasting and inexpensive.There is a wide range of products that are produced by this process including large size water tanks, automobile products, intricate shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to style 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 Manchaug MA 1526, 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 rotomoulding 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-Manchaug-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 Manchaug 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 Components

This moulding method has been used since ancient times for creatingvseverl products. Egyptians for example, worked with rotocasting systems in the creating of ceramics. The Swiss were also employing this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were made using this technique some time between 1940 and 1950. The process has however taken long to catch on because it was looked at as being a pretty slow-moving process

1. Mould fitting.
A predetermined amount of polymer in particle form is packed into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel material. The color desired for the final product 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 type of plastic engineering.

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 inserted into the oven.

2. The heating up and fusion phase.
Once placed into the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The turning is done gradually, about 20 spins per minute. Something that is crucial at this point is the amount of time the mold will spend within the oven. If it stays to long, the material will lose stability and durability, generating a faulty product. If it is removed from the oven too early, the polymer will not have flowed correctly, which creates bubbles in the finalized item.

3. Mould cooling down.
When the component has sufficiently 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 component cools, it shrinks somewhat for ease of extraction from the mold. This is an additional measure that relies a lot on the correct timing, since rapid cooling reduces the material too quickly, causing bending of the item.

4. The unloading or de-molding phase.
When the product within te mould has cooled successfully, the molder taking care of the process can then remove the finalized product from the mould. The function is repeated from the start, giving a series of similar products.

For more information on the different rotational rotomolding options offered for the Manchaug MA 1526 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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