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

roto-molding-Gilmanton-Rotational moulding refers to a plastic production technique that generates hollow stress-free products. The technique depends on high temperatures and bi axial rotation to follow up with seamless, one piece objects that have different designs, colors and sizes. This procedure is also referred to as rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this unique from other plastic manufacturing methods in that no pressure is involved. It also has few rivals when it involves the creation of large size hollow items which are durable and inexpensive.There is a wide variety of items that are generated by this process including large size water tanks, automobile materials, sophisticated shaped medical items, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility 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 Gilmanton WI 54743, 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

Plastic Manufacturing-Gilmanton-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 Gilmanton 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 Rotomoulding Method Components

This moulding technique has been used since ancient times for creatingvseverl product lines. Egyptians for example, worked with rotocasting procedures in the 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 developed using this approach some time between 1940 and 1950. Since it was viewed to be a somewhat slow system, the process has however taken long to become popular

1. Mould prep work.
A fixed quantity of polymer in particle form is loaded into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel component. The color tone needed for the end goods 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 style of plastic engineering.

Pre-heating of the oven starts, and it may 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 placed inside the oven.

2. The heating up and fusion procedure.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The turning is done slowly, about 20 rotations per minute. The main thing that is vital at this moment is the period of time the mold will spend within the oven. If it stays to long, the material will lose value and strength, producing a faulty item. If it is taken out from the oven prematurely, the polymer will not have melted correctly, which develops bubbles in the finished product line.

3. Mold cooling down.
When the material has sufficiently spent the enough of time in the oven, it is then extracted for cooling. This may be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks somewhat for ease of removal from the mold. This is yet another measure that depends a lot on the ideal timing, since rapid cooling reduces the material too rapidly, causing warping of the material.

4. The discharging or de-molding phase.
Once the product within te mould has cooled successfully, the person managing the process can then extract the finalized item from the mold. The technique is repeated from the beginning, providing a series of exact items.

For more information on the different rotational molding options offered for the Gilmanton WI 54743 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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