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

rotational molding-Newfields-Rotational molding refers to a plastic manufacturing technique that produces hollow stress-free product lines. The procedure utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have different shapes, colors and sizes. This technique is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing procedures that no pressure is involved. It also has few rivals when it comes down to the production of large size hollow items which are durable and inexpensive.There is a variety of items that are generated by this process including large size water tanks, automobile items, sophisticated molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in regards to design and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Newfields NH 3856, 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-Newfields-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 Newfields 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 Rotomoulding Method Components

This molding operation has been used since ancient times for creatingvseverl product lines. Egyptians as an example, used roto-molding techniques in the producing of ceramics. The Swiss were also using this rotation method to generate hollow chocolate eggs. Some plastic product lines in the USA were manufactured using this approach some time between 1940 and 1950. The system has however taken very long to catch on because it was looked at to be a pretty slow-moving process

1. Mold fitting.
A predetermined measure of polymer in particle form is packed into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel component. The coloration desired for the end goods is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic assembly.

Preheating 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 mold with the powdered polymer is then locked and positioned inside the oven.

2. The heating and fusion phase.
Once within the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done slowly, about 20 spins per min. Something that is important at this point is the period of time the mould will spend within the oven. If it overstays, the product will lose value and durability, making a weak item. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which creates bubbles in the completed product line.

3. Mould cooling down.
When the component has completely spent the correct amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the material cools, it shrinks slightly for ease of removal from the mould. This is one more step that depends a lot on the correct timing, since quick cooling decreases the material too quickly, causing bending of the item.

4. The discharging or de-molding step.
When the component within te mold has cooled adequately, the person handling the operation can then take out the finalized product from the mold. The function is repeated from the beginning, supplying a series of exact product lines.

For more information on the different rotational rotomolding options offered for the Newfields NH 3856 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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