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

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

The component that makes this different from other plastic manufacturing techniques because no pressure is required. It also has few rivals when it pertains to the creation of sizable hollow products which are durable and inexpensive.There is a wide range of product lines that are developed by this process including large water tanks, automobile products, sophisticated designed medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in terms of style and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Buxton ND 58218, 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 Products-Buxton-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 Buxton 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 molding procedure has been used since earlier times for creatingvseverl product lines. Egyptians for example, worked with rotomoulding methods in the manufacturing of ceramics. The Swiss were also making use of this rotation method to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this approach some time between 1940 and 1950. Since it was thought of to be a very slow procedure, the procedure has however taken long to catch on

1. Mold prep work.
A fixed quantity of polymer in particle form is filled into a hollow mold. The mold is usually comprised of cast aluminium or sheet steel material. The colour needed for the final 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 type of plastic assembly.

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 sealed and installed inside 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 overlays the inside if the mould. The rotation is done gradually, about 20 spins per sixty seconds. Something that is critical at this point is the period of time the mold will spend inside the oven. If it overstays, the product will lose value and strength, creating a faulty product. If it is removed from the oven prematurely, the polymer will not have liquefied correctly, which produces bubbles in the completed item.

3. Mould cooling.
When the product has sufficiently spent the enough 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 a cool mist. When the component cools, it shrinks somewhat for ease of extraction from the mould. This is an additional step that depends a lot on the ideal timing, since quick cooling reduces the material too fast, causing bending of the material.

4. The offloading or de-molding step.
As soon as the component inside te mould has cooled properly, the molder handling the process can then extract the finalized product from the mould. The process is repeated from the beginning, supplying a number of identical items.

For more information on the different rotational rotomolding options offered for the Buxton ND 58218 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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