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

rotomolding-Carlisle-Rotational molding pertains to a plastic manufacturing method that produces hollow stress-free items. The technique utilizes high temperatures and bi axial rotation to follow up with seamless, one piece objects that have varying designs, sizes and colors. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing techniques because no pressure is called for. It also has few competitors when it involves the production of sizable hollow items which are durable and inexpensive.There is a variety of products that are developed by this process including large water tanks, automobile products, sophisticated designed medical items, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in terms of type 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 Carlisle MA 1741, 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 Molding-Carlisle-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 Massachusetts 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 Carlisle Massachusetts 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 Method Components

This moulding procedure has been used since early times for creatingvseverl products. Egyptians as an example, used rotomoulding systems in the manufacturing of ceramics. The Swiss were also applying this rotation type to make hollow chocolate eggs. Some plastic products in the USA were created utilizing this technique some time between 1940 and 1950. The technique has however taken long to take affect because it was considered as being a very slow process

1. Mold fitting.
A fixed quantity of polymer in powder form is packed into a hollow mould. The mold is usually composeded of cast aluminium or sheet steel material. The color tone preferred for the end product 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 format of plastic engineering.

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 sealed and put into the oven.

2. The heating up and fusion step.
Once inside the oven, the mold is turned 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. Something that is crucial at this point is the amount of time the mould will spend inside the oven. If it stays to long, the material will lose stability and durability, creating a poor item. If it is removed from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finished item.

3. Mold cooling.
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 generates a cool mist. When the component cools, it reduces a little for ease of removal from the mould. This is an additional procedure that relies a lot on the ideal timing, since quick cooling shrinks the material too quickly, causing bending of the material.

4. The offloading or de-molding step.
As soon as the product inside te mold has cooled successfully, the person managing the procedure can then extract the finished product from the mould. The procedure is repeated from the beginning, supplying a number of identical items.

For more information on the different rotational rotomolding options offered for the Carlisle MA 1741 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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