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

roto-molding-Rancho Cordova-Rotational moulding refers to a plastic manufacturing procedure that generates hollow stress-free products. The procedure uses high temperatures and bi axial rotation to come up with seamless, one piece objects that have varying shapes, colors and sizes. This technique is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The function that makes this different from other plastic manufacturing procedures because no pressure is called for. It also has few contenders when it comes to the creation of large size hollow items which are long lasting and inexpensive.There is a wide variety of products that are created by this process including large size water tanks, automobile products, complex designed medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the flexibility in terms of style 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 Rancho Cordova CA 95670, 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

Plastic Manufacturing-Rancho Cordova-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 Rancho Cordova 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 Process Components

This molding procedure has been used since earlier times for creatingvseverl items. Egyptians for instance, worked with rotomoulding solutions in the of ceramics. The Swiss were also using this rotation design to create hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this method some time between 1940 and 1950. Due to the fact that it was considered to be a basically slow-moving process, the technique has however taken long to catch on

1. Mold preparation.
A predetermined amount of polymer in powder form is filled into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel component. The coloring needed for the finished product 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 type of plastic production.

Pre-heating of the oven starts, 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 placed into the oven.

2. The heat and fusion step.
Once inside the oven, the mould is spun on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The spinning is done slowly and gradually, about 20 revolutions per sixty seconds. The main thing that is crucial at this point is the period of time the mould will spend within the oven. If it overstays, the product will lose stability and durability, producing a poor product. If it is taken out from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the completed product line.

3. Mold 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 creates a cool mist. When the product cools, it reduces a little for ease of removal from the mould. This is an additional measure that relies a lot on the right timing, since quick cooling reduces the material too quick, causing bending of the product.

4. The discharging or de-moulding phase.
Once the product inside te mold has cooled adequately, the person taking care of the process can then take out the finished product from the mold. The function is repeated from the start, making a number of identical products.

For more information on the different rotational rotomolding options offered for the Rancho Cordova CA 95670 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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