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

roto-molding-Norfolk-Rotational molding refers to a plastic production technique that makes hollow stress-free product lines. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of designs, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing methods in that no pressure is required. It also has few contenders when it involves the manufacture of large hollow items which are resilient and inexpensive.There is a variety of items that are developed by this process including large size water tanks, automobile materials, complex designed medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is because of the flexibility in regards to style 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 Norfolk CT 6058, 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 rotomoulding 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-Norfolk-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 Norfolk 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 Rotomolding Procedure Components

This moulding technique has been used since ancient times for creatingvseverl items. Egyptians as an example, worked with rotational molding procedures in the creating of ceramics. The Swiss were also utilizing this rotation style to make hollow chocolate eggs. Some plastic products in the USA were made utilizing this procedure some time between 1940 and 1950. The procedure has however taken long to catch on because it was thought of as being a somewhat slow-moving process

1. Mold preparation.
A fixed measure of polymer in grain form is loaded into a hollow mold. The mould is usually comprised of cast aluminium or sheet steel substance. The colour wanted 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 manufacturing.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and installed inside the oven.

2. The heating up and fusion step.
Once placed into the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The spinning is done slowly, about 20 rotations per min. Something that is essential at this point is the period of time the mould will spend inside the oven. If it stays to long, the product will lose value and strength, creating a faulty product. If it is removed from the oven too early, the polymer will not have liquefied properly, which creates bubbles in the completed product line.

3. Mould cooling down.
When the component has completely spent the right amount 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 a cool mist. When the material cools, it reduces slightly for ease of extraction from the mould. This is an additional measure that relies a lot on the ideal timing, since quick cooling shrinks the material too quick, causing bending of the product.

4. The offloading or de-moulding phase.
As soon as the material inside te mould has cooled correctly, the molder taking care of the operation can then extract the finished product from the mold. The process is repeated from the start, providing a number of similar products.

For more information on the different rotational rotomolding options offered for the Norfolk CT 6058 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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