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

rotocasting-Grenada-Rotational moulding refers to a plastic production practice that makes hollow stress-free items. The process relies on high temperatures and bi axial rotation to follow up with seamless, one piece products that have a variety of designs, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing procedures in that no pressure is called for. It also has few competitors when it comes to the creation of large hollow items which are durable and inexpensive.There is a wide variety of products that are generated by this process including large size water tanks, automobile products, complex molded medical products, recreation equipment, toys, kayaks, commercial equipment among many others.This is due to the versatility in regards to design and shapes that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Grenada CA 96038, 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

Plastic Manufacturing-Grenada-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 Grenada 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 in Detail

This molding process has been used since ancient times for creatingvseverl product lines. Egyptians as an example, employed rotomoulding procedures in the producing of ceramics. The Swiss were also employing this rotation method to generate hollow chocolate eggs. Some plastic products in the USA were developed utilizing this method some time between 1940 and 1950. The system has however taken long to take affect because it was thought of as being a relatively slow-moving process

1. Mold preparation.
A fixed quantity of polymer in powder form is packed into a hollow mold. The mold is usually built from cast aluminium or sheet steel substance. The coloring needed for the finished item 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 design of plastic manufacturing.

Preheating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then locked and installed within the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The spinning is done slowly, about 20 revolutions per sixty seconds. One thing that is vital at this moment is the amount of time the mould will spend within the oven. If it stays to long, the product will lose value and durability, creating a faulty product. If it is removed from the oven too early, the polymer will not have flowed properly, which develops bubbles in the completed item.

3. Mold cooling.
When the product has completely spent the right amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the material cools, it shrinks slightly for ease of extraction from the mould. This is yet another measure that depends a lot on the ideal timing, since rapid cooling reduces the material too quick, causing warping of the item.

4. The discharging or de-molding phase.
Once the material inside te mold has cooled correctly, the person taking care of the operation can then remove the finished product from the mould. The process is repeated from the start, providing a series of exact products.

For more information on the different rotational rotomolding options offered for the Grenada CA 96038 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

Local Resources

Production Example
Google Map