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

rotational molding-Independence-Rotational molding refers to a plastic manufacturing solution that produces hollow stress-free products. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece items that have many different designs, sizes and colors. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The function that makes this unique from other plastic manufacturing processes in that no pressure is called for. It also has few contenders when it comes down to the creation of large hollow items which are durable and inexpensive.There is a wide range of items that are created by this process including big water tanks, automobile materials, complex molded medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in terms of design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Independence KY 41051, 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 moulding 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-Independence-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 Kentucky 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 Independence Kentucky 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 Process in Detail

This molding operation has been used since ancient times for creatingvseverl product lines. Egyptians for instance, used rotational molding solutions in the manufacturing of ceramics. The Swiss were also utilizing this rotation type to create hollow chocolate eggs. Some plastic products in the USA were created using this approach some time between 1940 and 1950. Considering that it was thought of to be a relatively slow-moving process, the technique has however taken long to become popular

1. Mold readying.
A fixed quantity of polymer in grain form is loaded into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel substance. The color tone desired for the finished 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 heated to temperatures between 500-700F. The mould with the powdered polymer is then locked and put inside the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The rotation is done gradually, about 20 revolutions per sixty seconds. The main thing that is important at this moment is the amount of time the mold will spend within the oven. If it overstays, the material will lose value and durability, producing a weak item. If it is removed from the oven too early, the polymer will not have liquefied properly, which generates bubbles in the finished product line.

3. Mould cooling.
When the product has sufficiently spent the correct 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 generates a cool mist. When the product cools, it shrinks slightly for ease of removal from the mold. This is yet another measure that depends upon a lot on the right timing, since quick cooling reduces the material too fast, causing bending of the material.

4. The unloading or de-molding step.
Once the product within te mold has cooled correctly, the person managing the operation can then take out the completed product from the mould. The function is repeated from the start, providing a series of exact products.

For more information on the different rotational molding options offered for the Independence KY 41051 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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