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

rotocasting-Victoria-Rotational molding pertains to a plastic manufacturing procedure that produces hollow stress-free items. The method depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have many different forms, 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 component that makes this unique from other plastic manufacturing methods in that no pressure is needed. It also has few rivals when it comes to the production of sizable hollow products which are durable and inexpensive.There is a variety of products that are generated by this process including large size water tanks, automobile products, complex molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the versatility 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 Victoria MN 55386, 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

Plastic Products-Victoria-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 Minnesota 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 Victoria Minnesota 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 in Detail

This molding process has been used since ancient times for creatingvseverl product lines. Egyptians for example, utilized roto-molding methods in the creating of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this method some time between 1940 and 1950. The system has however taken very long to take affect because it was looked at to be a pretty slow process

1. Mold fitting.
A predetermined amount of polymer in powder form is packed into a hollow mold. The mould is usually made from cast aluminium or sheet steel substance. The color tone intended for the final goods is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic engineering.

Preheating 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 inserted inside the oven.

2. The heating and fusion process.
Once within the oven, the mold is revolved on two axis so the powdered polymer melts from the heat and overlays the inside if the mold. The spinning is done slowly and gradually, about 20 rotations per min. The main thing that is crucial at this moment is the period of time the mold will spend inside the oven. If it stays to long, the component will lose stability and durability, producing a weak item. If it is removed from the oven prematurely, the polymer will not have flowed correctly, which generates bubbles in the finalized item.

3. Mould cooling down.
When the component has completely spent the enough of time in the oven, it is then taken out 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 step that relies a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing bending of the material.

4. The discharging or de-moulding step.
When the material within te mould has cooled successfully, the person managing the process can then take out the finalized item from the mold. The technique is repeated from the start, giving a series of exact product lines.

For more information on the different rotational rotomolding options offered for the Victoria MN 55386 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 molding

Local Resources

Production Example
Google Map