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

rotocasting-West Granby-Rotational moulding pertains to a plastic manufacturing technique that makes hollow stress-free items. The function relies upon high temperatures and bi axial rotation to follow up with seamless, one piece objects that have varying designs, colors and sizes. This technique is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing methods that no pressure is needed. It also has few contenders when it comes down to the manufacture of sizable hollow items which are resilient and inexpensive.There is a wide range of product lines that are produced by this process including large size water tanks, automobile products, sophisticated molded medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in regards to design 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 West Granby CT 6090, 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 rotocasting 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-West Granby-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 West Granby 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 ancient times for creatingvseverl product lines. Egyptians for instance, worked with rotomoulding procedures in the making of ceramics. The Swiss were also employing this rotation format to make hollow chocolate eggs. Some plastic product lines in the USA were developed using this approach some time between 1940 and 1950. The system has however taken very long to take affect because it was looked at to be a moderately slow process

1. Mold preparation.
A predetermined measure of polymer in particle form is filled into a hollow mould. The mold is usually crafted from cast aluminium or sheet steel substance. The coloring intended for the final goods 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.

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 inserted into the oven.

2. The heating up and fusion process.
Once within the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done slowly, about 20 rotations per min. One thing that is crucial at this moment is the amount of time the mold will spend inside the oven. If it overstays, the product will lose value and strength, making a poor product. If it is removed from the oven too early, the polymer will not have liquefied properly, which generates bubbles in the finished item.

3. Mould cooling.
When the product has completely spent the correct amount of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the material cools, it reduces slightly for ease of removal from the mold. This is an additional procedure that depends a lot on the right timing, since rapid cooling decreases the material too quickly, causing warping of the material.

4. The offloading or de-molding phase.
As soon as the component within te mold has cooled successfully, the molder taking care of the process can then extract the finished product from the mould. The technique is repeated from the start, supplying a series of identical products.

For more information on the different rotational rotomolding options offered for the West Granby CT 6090 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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