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

rotomoulding-Acton-Rotational moulding refers to a plastic production technique that generates hollow stress-free items. The process relies on high temperatures and bi axial rotation to follow up with seamless, one piece items 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 types.

The function that makes this unique from other plastic manufacturing methods because no pressure is needed. It also has few rivals when it comes down to the creation of sizable hollow products which are resilient and inexpensive.There is a variety of products that are generated by this process including large water tanks, automobile items, intricate designed medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in regards to type and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Acton ME 4001, 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-Acton-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 Maine 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 Acton Maine 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 in Detail

This molding procedure has been used since early times for creatingvseverl items. Egyptians for example, employed rotocasting systems in the making of ceramics. The Swiss were also working with this rotation method to generate hollow chocolate eggs. Some plastic products in the USA were made utilizing this approach some time between 1940 and 1950. Because it was regarded to be a fairly slow-moving technique, the process has however taken long to become popular

1. Mold preparation.
A fixed amount of polymer in powder form is packed into a hollow mold. The mould is usually made of cast aluminium or sheet steel substance. The coloring preferred for the finished 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 design of plastic production.

Preheating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then secured and inserted inside the oven.

2. The heat and fusion step.
Once within the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done slowly, about 20 rotations per minute. Something that is crucial at this moment is the amount of time the mould will spend inside the oven. If it overstays, the component will lose value and durability, creating a weak item. If it is taken out from the oven prematurely, the polymer will not have melted properly, which produces bubbles in the completed item.

3. Mold cooling.
When the component has completely spent the right amount of time in the oven, it is then removed 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 reduces a little for ease of removal from the mould. This is one more procedure that relies a lot on the right timing, since quick cooling reduces the material too rapidly, causing bending of the material.

4. The removing or de-molding step.
When the component within te mold has cooled correctly, the molder managing the procedure can then remove the finalized item from the mold. The function is repeated from the beginning, making a series of exact items.

For more information on the different rotational rotomolding options offered for the Acton ME 4001 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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