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

roto-molding-Mont Vernon-Rotational moulding pertains to a plastic production solution that produces hollow stress-free items. The procedure utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying shapes, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing techniques in that no pressure is required. It also has few contenders when it comes down to the creation of large size hollow items which are resilient and inexpensive.There is a wide range of items that are created by this process including large water tanks, automobile products, intricate shaped medical products, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in regards to type and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Mont Vernon NH 3057, 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-Mont Vernon-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 Mont Vernon 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 Method Components

This moulding operation has been used since early times for creatingvseverl products. Egyptians for example, employed roto-molding methods in the of ceramics. The Swiss were also applying this rotation format to create hollow chocolate eggs. Some plastic items in the USA were created using this method some time between 1940 and 1950. Given that it was considered to be a very slow-moving technique, the method has however taken long to catch on

1. Mould prep work.
A predetermined measure of polymer in particle form is loaded into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel material. The color tone intended for the final item 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 style of plastic assembly.

Preheating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then locked and placed inside the oven.

2. The heating and fusion step.
Once inside the oven, the mold is turned on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done slowly and gradually, about 20 spins per min. One thing that is critical at this point is the amount of time the mold will spend inside the oven. If it stays to long, the material will lose stability and strength, producing a faulty item. If it is extracted from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the finished product.

3. Mold cooling down.
When the component has completely spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the component cools, it shrinks slightly for ease of extraction from the mould. This is one more step that depends a lot on the correct timing, since quick cooling shrinks the material too rapidly, causing warping of the product.

4. The unloading or de-moulding step.
Once the component within te mold has cooled effectively, the person handling the operation can then extract the finalized item from the mold. The function is repeated from the beginning, supplying a number of exact items.

For more information on the different rotational rotomolding options offered for the Mont Vernon NH 3057 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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