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

rotational moulding-North Conway-Rotational moulding pertains to a plastic production procedure that produces hollow stress-free product lines. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have various shapes, sizes and colors. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing methods that no pressure is required. It also has few rivals when it pertains to the creation of sizable hollow items which are durable and inexpensive.There is a wide range of product lines that are produced by this process including big water tanks, automobile items, sophisticated molded medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in terms of design and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in North Conway NH 3860, 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 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 Molded-North Conway-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 North Conway 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 Roto-Molding Procedure Components

This moulding method has been used since early times for creatingvseverl items. Egyptians as an example, worked with rotocasting methods in the of ceramics. The Swiss were also employing this rotation style to make hollow chocolate eggs. Some plastic product lines in the USA were created using this procedure some time between 1940 and 1950. The procedure has however taken long to catch on because it was considered as being a pretty slow process

1. Mould readying.
A fixed measure of polymer in grain form is filled into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel material. The coloration preferred for the end product 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 design of plastic manufacturing.

Pre-heating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mould with the powdered polymer is then secured and installed inside the oven.

2. The heat and fusion phase.
Once inside the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The turning is done slowly and gradually, about 20 rotations per min. Something that is important at this point is the amount of time the mold will spend within the oven. If it stays to long, the product will lose stability and durability, making a faulty item. If it is removed from the oven too early, the polymer will not have melted correctly, which generates bubbles in the completed item.

3. Mould cooling down.
When the product has sufficiently spent the enough of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it reduces somewhat for ease of extraction from the mold. This is an additional step that depends a lot on the correct timing, since rapid cooling shrinks the material too quick, causing bending of the material.

4. The unloading or de-molding step.
Once the product inside te mold has cooled correctly, the molder managing the process can then extract the completed product from the mould. The procedure is repeated from the beginning, giving a number of identical items.

For more information on the different rotational rotomolding options offered for the North Conway NH 3860 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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