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

rotocasting-Greensburg-Rotational moulding refers to a plastic manufacturing practice that creates hollow stress-free products. The method utilizes high temperatures and bi axial rotation to come up with seamless, one piece products that have different designs, colors and sizes. This procedure is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The feature that makes this unique from other plastic manufacturing procedures in that no pressure is involved. It also has few competitors when it involves the manufacture of sizable hollow products which are resilient and inexpensive.There is a wide range of product lines that are created by this process including large size water tanks, automobile items, intricate designed medical items, recreation equipment, toys, kayaks, industrial 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 Greensburg KS 67054, 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 Manufacturing-Greensburg-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 Kansas 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 Greensburg Kansas 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 Process in Detail

This molding system has been used since earlier times for creatingvseverl products. Egyptians as an example, used roto-molding techniques in the creating of ceramics. The Swiss were also working with this rotation design to create hollow chocolate eggs. Some plastic product lines in the USA were manufactured utilizing this procedure some time between 1940 and 1950. The process has however taken long to take affect because it was thought of to be a pretty slow-moving process

1. Mold readying.
A predetermined volume of polymer in particle form is loaded into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel substance. The coloring needed for the finished 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 design of plastic production.

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 secured and positioned inside the oven.

2. The heating and fusion step.
Once placed into the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done gradually, about 20 revolutions per sixty seconds. The main thing that is crucial at this moment is the amount of time the mold will spend inside the oven. If it stays to long, the product will lose value and durability, producing a poor product. If it is removed from the oven prematurely, the polymer will not have flowed properly, which develops bubbles in the finished product line.

3. Mould cooling.
When the material 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 generates a cool mist. When the product cools, it reduces somewhat for ease of extraction from the mould. This is an additional step that relies a lot on the right timing, since quick cooling decreases the material too rapidly, causing warping of the product.

4. The discharging or de-moulding step.
Once the component inside te mould has cooled successfully, the molder taking care of the procedure can then extract the finished product from the mold. The technique is repeated from the beginning, supplying a number of similar products.

For more information on the different rotational rotomolding options offered for the Greensburg KS 67054 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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