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

roto-molding-North Branford-Rotational moulding refers to a plastic manufacturing technique that generates hollow stress-free product lines. The procedure utilizes high temperatures and bi axial rotation to come up with seamless, one piece items that have several shapes, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The benefit that makes this unique from other plastic manufacturing methods because no pressure is involved. It also has few contenders when it involves the production of large hollow products which are resilient and inexpensive.There is a wide range of product lines that are generated by this process including large water tanks, automobile items, complex shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in regards to style 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 North Branford CT 6471, 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

Plastic Products-North Branford-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 North Branford 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 in Detail

This moulding process has been used since earlier times for creatingvseverl items. Egyptians as an example, applied rotocasting methods in the producing of ceramics. The Swiss were also making use of this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were made using this approach some time between 1940 and 1950. Since it was looked at to be a basically slow approach, the method has however taken long to catch on

1. Mould readying.
A fixed quantity of polymer in powder form is filled into a hollow mould. The mold is usually made of cast aluminium or sheet steel material. The color wanted for the final item 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 style of plastic engineering.

Pre-heating of the oven follows, and it can 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 positioned inside the oven.

2. The heat and fusion process.
Once within the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The turning is done slowly and gradually, about 20 spins per min. Something that is vital at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the product will lose stability and durability, generating a weak item. If it is taken out from the oven too early, the polymer will not have melted correctly, which produces bubbles in the finished product line.

3. Mould 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 a cool mist. When the product cools, it shrinks somewhat for ease of removal from the mold. This is another step that depends a lot on the ideal timing, since quick cooling decreases the material too quickly, causing warping of the product.

4. The un-loading or de-moulding step.
Once the product within te mold has cooled adequately, the molder taking care of the operation can then extract the completed item from the mould. The technique is repeated from the beginning, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the North Branford CT 6471 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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