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

rotomoulding-San Fernando-Rotational molding pertains to a plastic production procedure that makes hollow stress-free items. The process utilizes high temperatures and bi axial rotation to follow up with seamless, one piece items that have varying forms, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The attribute that makes this different from other plastic manufacturing techniques that no pressure is called for. It also has few contenders when it comes down to the manufacture of large size hollow products which are long lasting and inexpensive.There is a variety of products that are created by this process including large size water tanks, automobile items, sophisticated designed medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility 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 San Fernando CA 91340, 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 rotomolding 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 Molding-San Fernando-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 San Fernando 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 Rotomoulding Procedure Components

This moulding method has been used since ancient times for creatingvseverl products. Egyptians for instance, worked with rotomoulding methods in the producing of ceramics. The Swiss were also applying this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were developed utilizing this approach some time between 1940 and 1950. Given that it was looked at to be a basically slow technique, the technique has however taken long to catch on

1. Mold preparation.
A fixed amount of polymer in powder form is loaded into a hollow mold. The mould is usually made of cast aluminium or sheet steel material. The color tone chosen for the finished product is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this style of plastic assembly.

Preheating of the oven follows, 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 secured and inserted into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mold. The turning is done slowly and gradually, about 20 spins per min. One thing that is critical at this point is the period of time the mold will spend inside the oven. If it stays to long, the material will lose value and strength, making a weak product. 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 component has completely 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 generates a cool mist. When the material cools, it reduces slightly for ease of extraction from the mould. This is an additional measure that relies a lot on the ideal timing, since quick cooling shrinks the material too rapidly, causing warping of the product.

4. The offloading or de-moulding step.
When the component inside te mold has cooled correctly, the molder managing the procedure can then extract the finished product from the mould. The procedure is repeated from the beginning, giving a series of identical products.

For more information on the different rotational rotomolding options offered for the San Fernando CA 91340 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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