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

rotational moulding-New Britain-Rotational moulding refers to a plastic manufacturing procedure that produces hollow stress-free product lines. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have varying designs, sizes and colors. This method is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing techniques in that no pressure is involved. It also has few competitors when it comes down to the creation of large hollow products which are long lasting and inexpensive.There is a wide variety of products that are created by this process including large size water tanks, automobile products, intricate molded medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in terms of style and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in New Britain CT 6050, 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

Plastic Molding-New Britain-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 New Britain 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 Rotomoulding Process Components

This moulding method has been used since earlier times for creatingvseverl product lines. Egyptians as an example, worked with rotomoulding methods in the making of ceramics. The Swiss were also using this rotation type to create hollow chocolate eggs. Some plastic products in the USA were developed using this procedure some time between 1940 and 1950. The process has however taken very long to catch on because it was looked at as being a very slow-moving process

1. Mould preparation.
A predetermined amount of polymer in powder form is filled into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel substance. The coloration preferred for the end 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 format of plastic manufacturing.

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

2. The heating and fusion phase.
Once inside the oven, the mold is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done gradually, about 20 revolutions per min. One thing that is essential at this point is the amount of time the mould will spend within the oven. If it stays to long, the material will lose value and strength, generating a faulty product. If it is removed from the oven prematurely, the polymer will not have melted properly, which produces bubbles in the finalized product line.

3. Mould cooling.
When the material has completely spent the right amount of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it reduces slightly for ease of removal from the mould. This is one more procedure that relies a lot on the correct timing, since quick cooling decreases the material too quickly, causing bending of the material.

4. The removing or de-moulding phase.
As soon as the material inside te mould has cooled correctly, the person managing the procedure can then remove the finished item from the mould. The process is repeated from the start, making a series of similar products.

For more information on the different rotational rotomolding options offered for the New Britain CT 6050 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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