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

roto-molding-Jordan-Rotational molding pertains to a plastic manufacturing technique that makes hollow stress-free product lines. The method 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 rotomolding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl forms.

The benefit that makes this unique from other plastic manufacturing techniques in that no pressure is needed. It also has few competitors when it pertains to the manufacture of sizable hollow products which are long lasting and inexpensive.There is a variety of items that are produced by this process including large water tanks, automobile materials, intricate molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in regards to type and shapes that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Jordan MN 55352, 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 roto-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

Custom Molded-Jordan-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 Jordan 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 Roto-Molding Method in Detail

This moulding procedure has been used since ancient times for creatingvseverl items. Egyptians as an example, used roto-molding techniques in the producing of ceramics. The Swiss were also applying this rotation style to create hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. Considering that it was viewed to be a fairly slow-moving technique, the process has however taken long to catch on

1. Mold readying.
A predetermined volume of polymer in grain form is filled into a hollow mould. The mould is usually crafted from cast aluminium or sheet steel component. The coloring needed for the end 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 design of plastic assembly.

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 sealed and placed within the oven.

2. The heat and fusion phase.
Once within the oven, the mould is revolved on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The rotation is done slowly and gradually, about 20 rotations per minute. One thing that is crucial at this moment is the amount of time the mold will spend within the oven. If it overstays, the product will lose value and durability, producing a faulty product. If it is removed from the oven too early, the polymer will not have liquefied correctly, which creates bubbles in the finished product.

3. Mold cooling down.
When the material has completely 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 a cool mist. When the product cools, it reduces a little for ease of removal from the mould. This is one more procedure that depends a lot on the correct timing, since rapid cooling reduces the material too quick, causing bending of the material.

4. The offloading or de-moulding phase.
Once the component inside te mold has cooled properly, the molder managing the process can then remove the finalized item from the mould. The function is repeated from the beginning, making a number of identical items.

For more information on the different rotational rotomolding options offered for the Jordan MN 55352 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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