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

rotomolding-Elizabethtown-Rotational molding refers to a plastic production technique that generates hollow stress-free product lines. The procedure relies upon high temperatures and bi axial rotation to come up with seamless, one piece items that have various forms, sizes and colors. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this different from other plastic manufacturing procedures that no pressure is called for. It also has few rivals when it pertains to the manufacture of large size hollow products which are long lasting and inexpensive.There is a wide range of products that are generated by this process including big water tanks, automobile items, complex molded medical items, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the versatility in regards to design and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Elizabethtown KY 42701, 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 roto-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-Elizabethtown-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 Elizabethtown 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 Roto-Molding Procedure in Detail

This molding operation has been used since early times for creatingvseverl product lines. Egyptians for example, applied rotocasting techniques in the making of ceramics. The Swiss were also applying this rotation approach to generate hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. Due to the fact that it was viewed to be a basically slow-moving process, the system has however taken long to catch on

1. Mold preparation.
A fixed quantity of polymer in powder form is loaded into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel component. The colour chosen for the finished goods 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 style of plastic manufacturing.

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 mould with the powdered polymer is then secured and placed inside the oven.

2. The heating up and fusion step.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The spinning is done slowly and gradually, about 20 spins per minute. Something that is essential at this point is the period of time the mould will spend within the oven. If it overstays, the product will lose stability and strength, making a poor product. If it is taken out from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the finalized item.

3. Mould cooling.
When the product 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 shrinks slightly for ease of extraction from the mold. This is yet another step that depends a lot on the correct timing, since quick cooling decreases the material too quickly, causing warping of the item.

4. The discharging or de-molding step.
When the product within te mould has cooled adequately, the person managing the procedure can then extract the finalized item from the mould. The process is repeated from the start, supplying a series of identical product lines.

For more information on the different rotational molding options offered for the Elizabethtown KY 42701 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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