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

rotational molding-Danbury-Rotational molding refers to a plastic manufacturing procedure that creates hollow stress-free items. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have several designs, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The component that makes this different from other plastic manufacturing processes that no pressure is needed. It also has few competitors when it comes to the production of large size hollow products which are long-lasting and inexpensive.There is a wide variety of items that are developed by this process including large size water tanks, automobile products, sophisticated molded medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in terms of 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 Danbury NH 3230, 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 rotomolding 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-Danbury-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 New Hampshire 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 Danbury New Hampshire 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 method has been used since earlier times for creatingvseverl items. Egyptians for instance, worked with rotomoulding solutions in the producing of ceramics. The Swiss were also using this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were developed using this approach some time between 1940 and 1950. Given that it was regarded to be a very slow-moving system, the technique has however taken long to become popular

1. Mould readying.
A fixed measure of polymer in particle form is filled into a hollow mold. The mold is usually made of cast aluminium or sheet steel material. The coloring preferred for the final 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 production.

Preheating 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 sealed and inserted inside the oven.

2. The heat and fusion process.
Once within the oven, the mould is revolved on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The spinning is done gradually, about 20 revolutions per min. Something that is important at this point is the amount of time the mold will spend inside the oven. If it overstays, the material will lose value and strength, creating a poor product. If it is extracted from the oven too early, the polymer will not have melted correctly, which produces bubbles in the finalized product line.

3. Mould cooling down.
When the product has sufficiently spent the enough 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 generates a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is another measure that depends a lot on the correct timing, since rapid cooling shrinks the material too fast, causing warping of the material.

4. The discharging or de-moulding step.
Once the material inside te mold has cooled effectively, the person managing the process can then take out the finalized product from the mold. The process is repeated from the start, giving a series of identical product lines.

For more information on the different rotational rotomolding options offered for the Danbury NH 3230 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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