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

rotational moulding-Francestown-Rotational moulding refers to a plastic production technique that creates hollow stress-free products. The process relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have various shapes, colors and sizes. This technique is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing processes that no pressure is called for. It also has few contenders when it comes to the creation of sizable hollow products which are long lasting and inexpensive.There is a wide range of products that are generated by this process including large size water tanks, automobile items, sophisticated designed medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is due to the flexibility in regards to design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Francestown NH 3043, 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 roto-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-Francestown-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 Francestown 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 in Detail

This moulding system has been used since early times for creatingvseverl items. Egyptians for example, applied rotocasting methods in the producing of ceramics. The Swiss were also applying this rotation style to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this procedure some time between 1940 and 1950. Due to the fact that it was considered to be a somewhat slow process, the technique has however taken long to become popular

1. Mold fitting.
A predetermined measure of polymer in particle form is filled into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel component. The color tone preferred for the final goods 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 engineering.

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

2. The heating up and fusion procedure.
Once within the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done gradually, about 20 revolutions per minute. One thing that is vital at this moment is the amount of time the mould will spend within the oven. If it stays to long, the material will lose value and durability, creating a faulty product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which develops bubbles in the completed product.

3. Mould cooling.
When the component has sufficiently spent the enough 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 generates a cool mist. When the component cools, it reduces somewhat for ease of extraction from the mould. This is yet another measure that depends a lot on the right timing, since quick cooling shrinks the material too fast, causing warping of the material.

4. The un-loading or de-molding step.
As soon as the component inside te mould has cooled properly, the molder managing the procedure can then extract the finished product from the mold. The process is repeated from the start, providing a series of identical products.

For more information on the different rotational rotomolding options offered for the Francestown NH 3043 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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