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

rotomoulding-Three Lakes-Rotational moulding pertains to a plastic manufacturing method that creates hollow stress-free items. The function relies upon high temperatures and bi axial rotation to follow up with seamless, one piece objects that have several forms, sizes and colors. This technique is also known as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing methods because no pressure is involved. It also has few competitors when it involves the manufacture of large size hollow products which are long-lasting and inexpensive.There is a wide range of items that are generated by this process including large size water tanks, automobile items, intricate designed medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is due to the versatility in terms of design and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Three Lakes WI 54562, 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 molding 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 Manufacturing-Three Lakes-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 Three Lakes 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 in Detail

This molding method has been used since ancient times for creatingvseverl products. Egyptians as an example, worked with rotational molding systems in the making of ceramics. The Swiss were also employing this rotation technique to create hollow chocolate eggs. Some plastic items in the USA were made utilizing this method some time between 1940 and 1950. Due to the fact that it was considered to be a fairly slow method, the method has however taken long to catch on

1. Mould fitting.
A predetermined measure of polymer in particle form is loaded into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel substance. The coloring chosen for the finished product 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 design of plastic production.

Preheating of the oven follows, and it can be done by either conduction, convection or sometimes radiation. It is heated to temperatures between 500-700F. The mold with the powdered polymer is then locked and inserted into the oven.

2. The heating and fusion phase.
Once placed into the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mould. The turning is done slowly, about 20 rotations per min. The main thing that is essential at this moment is the amount of time the mould will spend within the oven. If it stays to long, the material will lose stability and durability, making a poor item. If it is taken out from the oven too early, the polymer will not have melted properly, which generates bubbles in the completed product line.

3. Mould cooling.
When the material has sufficiently spent the correct amount 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 somewhat for ease of extraction from the mould. This is one more step that depends a lot on the correct timing, since rapid cooling reduces the material too rapidly, causing bending of the product.

4. The discharging or de-molding phase.
As soon as the material within te mould has cooled adequately, the person managing the operation can then extract the completed item from the mould. The technique is repeated from the start, giving a number of exact items.

For more information on the different rotational molding options offered for the Three Lakes WI 54562 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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