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

roto-molding-Big sur-Rotational molding refers to a plastic production technique that produces hollow stress-free products. The function relies on high temperatures and bi axial rotation to come up with seamless, one piece products that have different designs, sizes and colors. This method is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing processes in that no pressure is needed. It also has few contenders when it comes to the manufacture of large hollow products which are long-lasting and inexpensive.There is a variety of product lines that are generated by this process including large size water tanks, automobile materials, sophisticated designed medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is due to 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 Big sur CA 93920, 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

Plastic Manufacturing-Big sur-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 sur 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 Procedure Components

This molding system has been used since early times for creatingvseverl product lines. Egyptians as an example, worked with roto-molding solutions in the making of ceramics. The Swiss were also utilizing this rotation type to create hollow chocolate eggs. Some plastic items in the USA were created using this procedure some time between 1940 and 1950. Given that it was considered to be a basically slow-moving system, the technique has however taken long to become popular

1. Mould preparation.
A fixed measure of polymer in powder form is packed into a hollow mould. The mold is usually crafted from cast aluminium or sheet steel material. The colour needed for the end product 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 type of plastic production.

Pre-heating of the oven starts, and it can 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 sealed and inserted into the oven.

2. The heating and fusion procedure.
Once inside the oven, the mold is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mold. The turning is done gradually, about 20 rotations per min. Something that is vital at this moment is the period of time the mold will spend inside the oven. If it stays to long, the product will lose stability and durability, creating a weak item. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which generates bubbles in the completed item.

3. Mold cooling down.
When the material has completely spent the enough of time in the oven, it is then removed for cooling. This may be done by air or water, or sometimes a mixture of both which creates a cool mist. When the product cools, it shrinks slightly for ease of removal from the mold. This is another measure that depends a lot on the ideal timing, since quick cooling decreases the material too quickly, causing bending of the product.

4. The un-loading or de-moulding phase.
As soon as the product within te mould has cooled correctly, the molder managing the process can then take out the completed product from the mold. The procedure is repeated from the start, making a series of exact product lines.

For more information on the different rotational rotomolding options offered for the Big sur CA 93920 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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