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

roto-molding-Bolton-Rotational molding pertains to a plastic production procedure that produces hollow stress-free products. The method uses high temperatures and bi axial rotation to come up with seamless, one piece products that have a variety of shapes, colors and sizes. This technique is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing processes that no pressure is called for. It also has few rivals when it pertains to the production of large hollow products which are resilient and inexpensive.There is a wide range of products that are produced by this process including big water tanks, automobile materials, complex designed medical products, recreation equipment, toys, kayaks, industrial equipment among many others.This is due to the versatility in terms of type and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Bolton CT 6043, 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 roto-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

Plastic Manufacturing-Bolton-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 Bolton 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 Process in Detail

This molding method has been used since ancient times for creatingvseverl items. Egyptians for instance, utilized roto-molding systems in the creating of ceramics. The Swiss were also employing this rotation technique to generate hollow chocolate eggs. Some plastic items in the USA were made using this method some time between 1940 and 1950. Considering that it was regarded to be a basically slow method, the system has however taken long to catch on

1. Mold fitting.
A predetermined amount of polymer in grain form is filled into a hollow mould. The mould is usually built from cast aluminium or sheet steel substance. The color desired for the finished 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 format of plastic assembly.

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

2. The heating and fusion phase.
Once within the oven, the mould is turned on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The rotation is done gradually, about 20 spins per minute. Something that is vital at this point is the period of time the mould will spend inside the oven. If it stays to long, the material will lose stability and strength, generating a faulty item. If it is removed from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the completed item.

3. Mold cooling down.
When the component has completely spent the right amount 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 a cool mist. When the material cools, it reduces slightly for ease of extraction from the mold. This is yet another measure that depends upon a lot on the right timing, since rapid cooling shrinks the material too fast, causing warping of the product.

4. The removing or de-molding phase.
When the material within te mould has cooled adequately, the molder handling the procedure can then remove the finished item from the mould. The process is repeated from the beginning, providing a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Bolton CT 6043 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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