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

roto-molding-Putnam-Rotational moulding refers to a plastic production procedure that creates hollow stress-free product lines. The procedure relies on high temperatures and bi axial rotation to follow up with seamless, one piece products that have different designs, colors and sizes. This technique is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing processes because no pressure is called for. It also has few competitors when it involves the creation of large size hollow products which are long lasting and inexpensive.There is a variety of product lines that are produced by this process including large size water tanks, automobile materials, complex molded medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in terms of type and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Putnam CT 6260, 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

Plastic Products-Putnam-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 Putnam 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 Method Components

This molding system has been used since ancient times for creatingvseverl items. Egyptians for example, used rotational molding methods in the manufacturing of ceramics. The Swiss were also making use of this rotation design to make hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this technique some time between 1940 and 1950. Since it was thought of to be a rather slow process, the method has however taken long to become popular

1. Mold fitting.
A fixed volume of polymer in powder form is filled into a hollow mould. The mold is usually made from cast aluminium or sheet steel material. The color tone intended for the final 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 engineering.

Preheating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then sealed and installed into the oven.

2. The heat and fusion phase.
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 rotation is done gradually, about 20 rotations per sixty seconds. Something that is essential at this point is the period of time the mold will spend within the oven. If it stays to long, the material will lose value and durability, producing a weak item. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the finished product.

3. Mould cooling down.
When the product has completely spent the enough 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 a cool mist. When the component cools, it reduces a little for ease of removal from the mold. This is another measure that depends upon a lot on the right timing, since rapid cooling shrinks the material too quick, causing warping of the product.

4. The unloading or de-moulding phase.
As soon as the product inside te mold has cooled effectively, the molder handling the operation can then take out the finished item from the mould. The technique is repeated from the start, making a number of exact products.

For more information on the different rotational rotomolding options offered for the Putnam CT 6260 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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