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

rotomolding-Henniker-Rotational moulding pertains to a plastic manufacturing procedure that creates hollow stress-free products. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of shapes, sizes and colors. This technique is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this unique from other plastic manufacturing methods in that no pressure is required. It also has few contenders when it comes down to the manufacture of large size hollow items which are durable and inexpensive.There is a wide range of product lines that are developed by this process including large size water tanks, automobile products, complex shaped medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in terms of 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 Henniker NH 3242, 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 rotocasting 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 Molded-Henniker-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 Henniker 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 Components

This moulding procedure has been used since ancient times for creatingvseverl products. Egyptians for instance, utilized rotomoulding solutions in the of ceramics. The Swiss were also using this rotation type to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this method some time between 1940 and 1950. Given that it was viewed to be a very slow-moving approach, the approach has however taken long to catch on

1. Mold readying.
A fixed volume of polymer in particle form is packed into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel material. The coloration intended for the end goods 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 type 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 mold with the powdered polymer is then sealed and positioned within the oven.

2. The heating and fusion procedure.
Once inside the oven, the mold is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The spinning is done gradually, about 20 rotations per min. The main thing that is critical at this point is the period of time the mold will spend within the oven. If it overstays, the component will lose value and durability, making a poor item. If it is removed from the oven prematurely, the polymer will not have flowed properly, which produces bubbles in the finished product line.

3. Mold cooling.
When the material has sufficiently spent the correct 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 product cools, it reduces slightly for ease of extraction from the mold. This is another measure that relies a lot on the ideal timing, since quick cooling decreases the material too rapidly, causing warping of the material.

4. The un-loading or de-molding step.
When the material inside te mould has cooled successfully, the person handling the procedure can then extract the completed item from the mould. The process is repeated from the beginning, giving a series of identical product lines.

For more information on the different rotational rotomolding options offered for the Henniker NH 3242 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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