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

rotomoulding-Kindred-Rotational molding pertains to a plastic manufacturing practice that creates hollow stress-free products. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have varying designs, sizes and colors. This method is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The function that makes this different from other plastic manufacturing processes in that no pressure is called for. It also has few competitors when it comes down to the production of sizable hollow items which are long lasting and inexpensive.There is a wide variety of product lines that are created by this process including large size water tanks, automobile items, complex shaped medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is due to the versatility in terms of design and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Kindred ND 58051, 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 moulding 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-Kindred-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 Kindred 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 Method in Detail

This moulding procedure has been used since earlier times for creatingvseverl products. Egyptians as an example, utilized rotomoulding techniques in the of ceramics. The Swiss were also applying this rotation format to make hollow chocolate eggs. Some plastic items in the USA were created using this procedure some time between 1940 and 1950. The process has however taken long to take affect because it was looked at to be a relatively slow process

1. Mold prep work.
A predetermined amount of polymer in powder form is loaded into a hollow mold. The mould is usually made from cast aluminium or sheet steel material. The coloration wanted for the final product 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 format of plastic production.

Pre-heating 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 mold with the powdered polymer is then secured and inserted inside the oven.

2. The heating and fusion phase.
Once inside the oven, the mould is spun on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done slowly and gradually, about 20 revolutions per min. Something that is important at this point is the amount of time the mould will spend inside the oven. If it overstays, the component will lose value and durability, creating a weak product. If it is taken out from the oven too early, the polymer will not have melted properly, which creates bubbles in the finalized item.

3. Mold cooling.
When the component has sufficiently spent the correct amount 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 component cools, it shrinks somewhat for ease of removal from the mold. This is one more step that depends a lot on the correct timing, since quick cooling decreases the material too quickly, causing warping of the product.

4. The discharging or de-moulding phase.
As soon as the product inside te mould has cooled successfully, the person taking care of the process can then take out the finalized item from the mould. The technique is repeated from the beginning, making a number of exact products.

For more information on the different rotational rotomolding options offered for the Kindred ND 58051 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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