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

roto-molding-Newfield-Rotational moulding refers to a plastic production practice that creates hollow stress-free product lines. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have different shapes, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing processes that no pressure is called for. It also has few contenders when it comes to the production of sizable hollow items which are resilient and inexpensive.There is a variety of products that are developed by this process including large size water tanks, automobile products, sophisticated designed medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in terms of design and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Newfield ME 4056, 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 moulding 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-Newfield-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 Maine 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 Newfield Maine 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 Procedure Components

This moulding process has been used since early times for creatingvseverl items. Egyptians as an example, worked with rotocasting methods in the manufacturing of ceramics. The Swiss were also applying this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were developed using this method some time between 1940 and 1950. The procedure has however taken very long to take affect because it was looked at as being a very slow process

1. Mold fitting.
A fixed measure of polymer in powder form is packed into a hollow mold. The mold is usually constructed from cast aluminium or sheet steel substance. The color tone needed for the final product 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 type of plastic production.

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

2. The heating and fusion phase.
Once within the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 revolutions per sixty seconds. One thing that is vital at this moment is the period of time the mould will spend inside the oven. If it overstays, the component will lose stability and durability, creating a poor product. If it is taken out from the oven too early, the polymer will not have flowed correctly, which creates bubbles in the completed product line.

3. Mold cooling down.
When the material has completely spent the enough 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 a little for ease of extraction from the mould. This is another measure that depends a lot on the right timing, since quick cooling decreases the material too quick, causing bending of the item.

4. The offloading or de-moulding phase.
As soon as the component inside te mold has cooled correctly, the molder managing the procedure can then extract the completed product from the mould. The technique is repeated from the start, supplying a series of similar product lines.

For more information on the different rotational rotomolding options offered for the Newfield ME 4056 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 custom molding

Local Resources

Production Example
Google Map