Looking for rotational molding alternatives for California? Want affordable custom plastic molding that is cost effective for Big Pine 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 procedure that generates hollow stress-free products. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have different forms, colors and sizes. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.
The attribute that makes this different from other plastic manufacturing techniques in that no pressure is required. It also has few competitors when it comes to the creation of large size hollow products which are long-lasting and inexpensive.There is a wide variety of product lines that are developed by this process including big water tanks, automobile materials, sophisticated shaped medical products, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the flexibility in regards to type 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 Big Pine CA 93513, 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 rotomoulding 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 California 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 Big Pine California 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 moulding technique has been used since early times for creatingvseverl product lines. Egyptians for example, utilized rotational molding procedures in the of ceramics. The Swiss were also utilizing this rotation method to create hollow chocolate eggs. Some plastic products in the USA were manufactured using this technique some time between 1940 and 1950. Considering that it was regarded to be a fairly slow-moving method, the technique has however taken long to catch on
1. Mold readying.
A fixed amount of polymer in powder form is loaded into a hollow mold. The mould is usually made from cast aluminium or sheet steel substance. The coloring chosen for the end goods 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 format of plastic production.
Pre-heating 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 mold with the powdered polymer is then locked and installed into the oven.
2. The heating up and fusion phase.
Once placed into the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The rotation is done slowly, about 20 revolutions per minute. The main thing that is critical at this point is the amount of time the mould will spend inside the oven. If it overstays, the product will lose stability and strength, creating a faulty product. If it is taken out from the oven prematurely, the polymer will not have melted properly, which generates bubbles in the finished product.
3. Mould cooling down.
When the material has sufficiently spent the enough 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 creates a cool mist. When the product cools, it shrinks somewhat for ease of removal from the mold. This is another procedure that relies a lot on the right timing, since quick cooling shrinks the material too rapidly, causing bending of the product.
4. The removing or de-moulding phase.
As soon as the component within te mould has cooled effectively, the molder taking care of the operation can then take out the finalized product from the mold. The technique is repeated from the start, supplying a series of exact product lines.
For more information on the different rotational rotomolding options offered for the Big Pine CA 93513 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