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

roto-molding-Mayville-Rotational moulding refers to a plastic production method that creates hollow stress-free items. The process relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have several shapes, colors and sizes. This procedure is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The component that makes this different from other plastic manufacturing techniques that no pressure is involved. It also has few contenders when it involves the manufacture of large size hollow items which are long-lasting and inexpensive.There is a wide variety of product lines that are generated by this process including large water tanks, automobile products, complex shaped medical items, recreation equipment, toys, kayaks, commercial equipment among many others.This is because of 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 Mayville WI 53050, 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

Custom Molded-Mayville-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 Wisconsin 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 Mayville Wisconsin 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 Rotomolding Procedure Components

This molding technique has been used since earlier times for creatingvseverl products. Egyptians as an example, worked with roto-molding systems in the producing of ceramics. The Swiss were also making use of this rotation approach to create hollow chocolate eggs. Some plastic products in the USA were made using this approach some time between 1940 and 1950. Because it was regarded to be a basically slow procedure, the technique has however taken long to become popular

1. Mould preparation.
A predetermined volume of polymer in grain form is filled into a hollow mould. The mold is usually comprised of cast aluminium or sheet steel component. The color tone wanted for the final goods 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 follows, and it can be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mould with the powdered polymer is then sealed and placed within the oven.

2. The heat and fusion step.
Once inside the oven, the mold is spun 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 revolutions per sixty seconds. Something that is essential at this point is the amount of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, making a weak product. If it is removed from the oven prematurely, the polymer will not have flowed properly, which develops bubbles in the finished product line.

3. Mold cooling down.
When the material 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 component cools, it reduces a little for ease of extraction from the mould. This is an additional measure that relies a lot on the correct timing, since rapid cooling decreases the material too rapidly, causing warping of the material.

4. The offloading or de-molding step.
As soon as the component inside te mould has cooled correctly, the person managing the procedure can then extract the finished product from the mold. The technique is repeated from the start, supplying a number of exact product lines.

For more information on the different rotational molding options offered for the Mayville WI 53050 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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