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

rotocasting-Milford-Rotational molding refers to a plastic production solution that produces hollow stress-free product lines. The process uses high temperatures and bi axial rotation to come up with seamless, one piece items that have several designs, colors and sizes. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The function that makes this different from other plastic manufacturing processes in that no pressure is needed. It also has few competitors when it comes to the production of large size hollow items which are durable and inexpensive.There is a wide range of items that are created by this process including big water tanks, automobile materials, complex shaped medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in terms of type and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Milford CT 6460, 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 Molding-Milford-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 Connecticut 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 Milford Connecticut 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 operation has been used since earlier times for creatingvseverl product lines. Egyptians for instance, worked with rotomoulding methods in the creating of ceramics. The Swiss were also making use of this rotation design to create hollow chocolate eggs. Some plastic items in the USA were developed utilizing this procedure some time between 1940 and 1950. The process has however taken very long to take affect because it was looked at to be a moderately slow-moving process

1. Mould fitting.
A predetermined measure of polymer in powder form is filled into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel material. The coloring intended for the final 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 style 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 sealed and inserted into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done gradually, about 20 revolutions per min. The main thing that is essential at this moment is the period of time the mould will spend within the oven. If it stays to long, the material will lose stability and durability, generating a poor product. If it is extracted from the oven prematurely, the polymer will not have melted correctly, which develops bubbles in the finalized product line.

3. Mold cooling.
When the component has completely spent the enough 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 product cools, it reduces slightly for ease of extraction from the mold. This is yet another procedure that relies a lot on the right timing, since rapid cooling reduces the material too rapidly, causing warping of the item.

4. The unloading or de-moulding phase.
Once the material inside te mold has cooled properly, the molder taking care of the process can then extract the finalized item from the mold. The technique is repeated from the start, making a series of identical items.

For more information on the different rotational rotomolding options offered for the Milford CT 6460 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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