Looking for rotational molding alternatives for Louisiana? Want affordable custom plastic molding that is cost effective for Springhill area? Then give us a call at our toll free number 866-971-7861 or request a quote today!
Rotational molding refers to a plastic manufacturing procedure that generates hollow stress-free products. The process depends on high temperatures and bi axial rotation to come up with seamless, one piece items that have various forms, colors and sizes. This procedure is also called roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.
The component that makes this unique from other plastic manufacturing processes that no pressure is needed. It also has few rivals when it comes to the production of large size hollow products which are durable and inexpensive.There is a wide variety of product lines that are developed by this process including large size water tanks, automobile items, intricate molded medical items, recreation equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility in terms of design and forms that the process makes
Benefits of Using Rotomolding to Manufacture Plastic Products
- – Relatively low tooling costs.
When compared to other plastic manufacturing processes in Springhill LA 71075, 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 rotocasting 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 Louisiana 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 Springhill Louisiana 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 technique has been used since ancient times for creatingvseverl items. Egyptians as an example, used rotomoulding procedures in the creating of ceramics. The Swiss were also employing this rotation technique to create hollow chocolate eggs. Some plastic items in the USA were developed utilizing this method some time between 1940 and 1950. The technique has however taken very long to take affect because it was considered as being a pretty slow-moving process
1. Mould prep work.
A predetermined amount of polymer in powder form is loaded into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel material. The colour preferred 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 style of plastic assembly.
Preheating of the oven starts, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then locked and inserted within the oven.
2. The heating up and fusion procedure.
Once within the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The spinning is done slowly and gradually, about 20 spins per min. One thing that is essential at this moment is the period of time the mold will spend within the oven. If it overstays, the product will lose value and strength, making a faulty item. If it is removed from the oven too early, the polymer will not have melted properly, which produces bubbles in the finished product line.
3. Mould cooling down.
When the product has completely spent the right amount of time in the oven, it is then taken out for cooling. This may be done by air or water, or sometimes a mixture of both which a cool mist. When the component cools, it shrinks slightly for ease of removal from the mold. This is yet another measure that depends a lot on the correct timing, since quick cooling shrinks the material too quick, causing bending of the material.
4. The un-loading or de-moulding phase.
When the product within te mould has cooled successfully, the person taking care of the procedure can then extract the finalized product from the mold. The technique is repeated from the start, supplying a series of similar product lines.
For more information on the different rotational rotomolding options offered for the Springhill LA 71075 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 molding