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

roto-molding-Lebanon-Rotational moulding pertains to a plastic production method that produces hollow stress-free product lines. The process uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have many different shapes, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing processes that no pressure is involved. It also has few competitors when it involves the production of sizable hollow products which are durable and inexpensive.There is a variety of products that are created by this process including large size water tanks, automobile items, sophisticated shaped medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the flexibility in regards to design 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 Lebanon OH 45036, 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

Custom Molded-Lebanon-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 Ohio 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 Lebanon Ohio 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 moulding system has been used since ancient times for creatingvseverl product lines. Egyptians as an example, worked with rotocasting systems in the creating 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 utilizing this method some time between 1940 and 1950. The process has however taken long to catch on because it was considered as being a somewhat slow process

1. Mould preparation.
A predetermined amount of polymer in grain form is filled into a hollow mold. The mould is usually made of cast aluminium or sheet steel component. The coloration intended for the final 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 engineering.

Pre-heating of the oven starts, 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 sealed and positioned inside the oven.

2. The heating up and fusion step.
Once inside 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 spinning is done gradually, about 20 revolutions per minute. Something that is crucial at this moment is the period of time the mould will spend inside the oven. If it overstays, the material will lose stability and strength, producing a weak product. If it is taken out from the oven prematurely, the polymer will not have flowed properly, which develops bubbles in the finalized product.

3. Mould cooling.
When the component has completely spent the enough of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces somewhat for ease of extraction from the mold. This is yet another procedure that depends upon a lot on the correct timing, since rapid cooling shrinks the material too rapidly, causing warping of the material.

4. The un-loading or de-moulding phase.
When the material within te mold has cooled successfully, the molder handling the process can then take out the finished product from the mold. The procedure is repeated from the beginning, providing a series of identical products.

For more information on the different rotational molding options offered for the Lebanon OH 45036, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic manufacturing

Local Resources

Process Example
Google Map