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

rotational molding-Deerfield-Rotational moulding pertains to a plastic production solution that creates hollow stress-free products. The process uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have a wide range of designs, colors and sizes. This technique is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing methods in that no pressure is needed. It also has few rivals when it pertains to the production of large size hollow products which are long-lasting and inexpensive.There is a wide range of items that are produced by this process including large water tanks, automobile materials, intricate molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in terms of design and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Deerfield NH 3037, 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 rotomolding 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

Plastic Manufacturing-Deerfield-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 Deerfield 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 Process Components

This molding system has been used since early times for creatingvseverl product lines. Egyptians for example, employed rotomoulding systems in the of ceramics. The Swiss were also applying this rotation design to create hollow chocolate eggs. Some plastic products in the USA were manufactured using this approach some time between 1940 and 1950. The system has however taken long to catch on because it was thought of as being a moderately slow-moving process

1. Mold fitting.
A predetermined volume of polymer in particle form is filled into a hollow mould. The mold is usually crafted from cast aluminium or sheet steel component. The color tone intended for the finished item is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic production.

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

2. The heat and fusion step.
Once placed into the oven, the mold is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The spinning is done slowly and gradually, about 20 spins per sixty seconds. One thing that is critical at this moment is the period of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, making a poor item. If it is removed from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the finalized product line.

3. Mold 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 creates a cool mist. When the material cools, it shrinks somewhat for ease of extraction from the mould. This is an additional measure that depends upon a lot on the ideal timing, since rapid cooling shrinks the material too rapidly, causing bending of the item.

4. The discharging or de-molding step.
As soon as the component inside te mold has cooled effectively, the person managing the operation can then remove the finalized item from the mould. The procedure is repeated from the beginning, giving a series of similar items.

For more information on the different rotational rotomolding options offered for the Deerfield NH 3037 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic manufacturing

Local Resources

Production Example
Google Map