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

rotational molding-Ascutney-Rotational molding pertains to a plastic production solution that generates hollow stress-free product lines. The function depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have many different forms, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The feature that makes this unique from other plastic manufacturing procedures that no pressure is needed. It also has few competitors when it comes down to the creation of large hollow products which are resilient and inexpensive.There is a variety of items that are created by this process including large size water tanks, automobile items, intricate shaped medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in terms of style 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 Ascutney VT 5030, 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 Products-Ascutney-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 Vermont 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 Ascutney Vermont 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 Rotomolding Procedure in Detail

This moulding technique has been used since earlier times for creatingvseverl product lines. Egyptians for instance, worked with roto-molding systems in the manufacturing of ceramics. The Swiss were also employing this rotation type to make hollow chocolate eggs. Some plastic product lines in the USA were made utilizing this procedure some time between 1940 and 1950. Due to the fact that it was regarded to be a fairly slow-moving method, the procedure has however taken long to become popular

1. Mold preparation.
A predetermined volume of polymer in grain form is packed into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel component. The coloring chosen for the end 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 assembly.

Pre-heating of the oven follows, 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 locked and inserted inside the oven.

2. The heat and fusion procedure.
Once placed into the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done gradually, about 20 spins per minute. One thing that is crucial at this moment is the amount of time the mould will spend within the oven. If it stays to long, the material will lose stability and strength, creating a weak product. If it is extracted from the oven too early, the polymer will not have melted properly, which creates bubbles in the completed product.

3. Mold cooling.
When the material has sufficiently spent the correct amount of time in the oven, it is then extracted 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 reduces slightly for ease of extraction from the mould. This is yet another step that relies a lot on the correct timing, since quick cooling reduces the material too quickly, causing bending of the product.

4. The offloading or de-molding step.
When the material within te mould has cooled effectively, the molder handling the procedure can then remove the completed product from the mould. The procedure is repeated from the start, supplying a number of similar items.

For more information on the different rotational rotomolding options offered for the Ascutney VT 5030 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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