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

rotocasting-Dickey-Rotational molding refers to a plastic production procedure that produces hollow stress-free product lines. The method depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have varying forms, sizes and colors. This method is also referred to as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The feature that makes this different from other plastic manufacturing techniques because no pressure is called for. It also has few rivals when it comes to the manufacture of large hollow products which are durable and inexpensive.There is a wide range of items that are generated by this process including big water tanks, automobile products, complex molded medical products, leisure equipment, toys, kayaks, commercial 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 Dickey ND 58431, 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 Molding-Dickey-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 North Dakota 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 Dickey North Dakota 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 in Detail

This molding system has been used since early times for creatingvseverl products. Egyptians for instance, utilized rotational molding solutions in the of ceramics. The Swiss were also utilizing this rotation technique to make hollow chocolate eggs. Some plastic products in the USA were manufactured utilizing this procedure some time between 1940 and 1950. The system has however taken very long to take affect because it was looked at as being a moderately slow process

1. Mold fitting.
A fixed quantity of polymer in grain form is packed into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel material. The color tone preferred 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.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then secured and placed into the oven.

2. The heating and fusion process.
Once inside the oven, the mould is turned on two axis so the powdered polymer melts from the heat and overlays the inside if the mould. The rotation is done gradually, about 20 rotations per minute. The main thing that is important at this moment is the period of time the mold will spend within the oven. If it overstays, the component will lose stability and strength, making a faulty item. If it is removed from the oven too early, the polymer will not have liquefied correctly, which develops bubbles in the finished product.

3. Mould cooling down.
When the product 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 component cools, it reduces somewhat for ease of extraction from the mould. This is an additional procedure that depends upon a lot on the right timing, since quick cooling reduces the material too rapidly, causing bending of the item.

4. The discharging or de-molding phase.
Once the product inside te mould has cooled properly, the molder managing the process can then take out the finished item from the mold. The procedure is repeated from the start, making a number of exact products.

For more information on the different rotational rotomolding options offered for the Dickey ND 58431 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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