Looking for rotational molding alternatives for South Carolina? Want affordable custom plastic molding that is cost effective for Jackson area? Then give us a call at our toll free number 866-971-7861 or request a quote today!
Rotational moulding pertains to a plastic manufacturing method that makes hollow stress-free items. The function utilizes high temperatures and bi axial rotation to follow up with seamless, one piece products that have various forms, sizes and colors. This technique is also referred to as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.
The feature that makes this unique from other plastic manufacturing methods in that no pressure is required. It also has few competitors when it pertains to the creation of sizable hollow items which are long lasting and inexpensive.There is a wide variety of products that are produced by this process including large water tanks, automobile products, complex molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in terms of 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 Jackson SC 29831, 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 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
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 South Carolina 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 Jackson South Carolina 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 early times for creatingvseverl items. Egyptians for example, used roto-molding solutions in the manufacturing of ceramics. The Swiss were also utilizing this rotation format to make hollow chocolate eggs. Some plastic products in the USA were made utilizing this technique some time between 1940 and 1950. The technique has however taken very long to catch on because it was looked at as being a moderately slow-moving process
1. Mould preparation.
A predetermined measure of polymer in powder form is loaded into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel component. The colour intended for the finished item is pre compounded into the polymer. The most commonly 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 locked and installed within the oven.
2. The heating up and fusion procedure.
Once placed into the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The spinning is done slowly and gradually, about 20 revolutions per sixty seconds. The main thing that is essential at this point is the period of time the mold will spend inside the oven. If it stays to long, the product will lose stability and durability, generating a poor item. If it is taken out from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the completed product line.
3. Mould cooling.
When the material has sufficiently spent the correct 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 material cools, it shrinks slightly for ease of extraction from the mould. This is one more measure that depends a lot on the right timing, since rapid cooling decreases the material too rapidly, causing warping of the material.
4. The removing or de-molding phase.
As soon as the product within te mold has cooled effectively, the person managing the operation can then remove the finished product from the mold. The function is repeated from the start, giving a series of exact products.
For more information on the different rotational rotomolding options offered for the Jackson SC 29831 area, 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 custom molded