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

rotational molding-Rogers-Rotational molding pertains to a plastic manufacturing practice that generates hollow stress-free items. The function uses high temperatures and bi axial rotation to follow up with seamless, one piece products that have a variety of designs, sizes and colors. This technique is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The benefit that makes this different from other plastic manufacturing methods because no pressure is needed. It also has few rivals when it comes down to the creation of large size hollow items which are long lasting and inexpensive.There is a wide range of product lines that are produced by this process including large size water tanks, automobile items, complex molded medical items, leisure equipment, toys, canoes, industrial equipment among many others.This is due to the versatility in regards to style 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 Rogers MN 55374, 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 rotomolding 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-Rogers-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 Minnesota 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 Rogers Minnesota 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 Method in Detail

This moulding operation has been used since earlier times for creatingvseverl product lines. Egyptians for example, applied roto-molding solutions in the manufacturing of ceramics. The Swiss were also working with this rotation approach to generate hollow chocolate eggs. Some plastic items in the USA were developed using this technique some time between 1940 and 1950. Considering that it was looked at to be a somewhat slow procedure, the procedure has however taken long to catch on

1. Mold prep work.
A predetermined measure of polymer in grain form is packed into a hollow mould. The mold is usually made of cast aluminium or sheet steel substance. The coloring chosen for the finished product is pre compounded into the polymer. The most commonly used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic engineering.

Pre-heating of the oven follows, 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 locked and inserted within the oven.

2. The heating up and fusion procedure.
Once within the oven, the mould is revolved 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 revolutions per sixty seconds. The main thing that is essential at this moment is the period of time the mould will spend within the oven. If it overstays, the component will lose value and durability, producing a poor item. If it is extracted from the oven too early, the polymer will not have melted correctly, which produces bubbles in the finalized product line.

3. Mould cooling down.
When the material has sufficiently spent the enough of time in the oven, it is then taken out for cooling. This may 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 removal from the mold. This is yet another measure that depends a lot on the ideal timing, since quick cooling reduces the material too quick, causing bending of the product.

4. The discharging or de-molding phase.
As soon as the component within te mold has cooled effectively, the molder handling the procedure can then extract the finished product from the mold. The function is repeated from the beginning, providing a number of similar product lines.

For more information on the different rotational rotomolding options offered for the Rogers MN 55374 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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