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

rotational moulding-Grant-Rotational moulding refers to a plastic production technique that makes hollow stress-free product lines. The technique uses high temperatures and bi axial rotation to follow up with seamless, one piece items that have a wide range of forms, colors and sizes. This method is also called rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The function that makes this unique from other plastic manufacturing processes in that no pressure is required. It also has few rivals when it involves the manufacture of large size hollow items which are resilient and inexpensive.There is a wide variety of items that are produced by this process including large water tanks, automobile materials, sophisticated molded medical products, leisure equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in regards to design 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 Grant NE 69140, 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 rotomoulding 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 Molding-Grant-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 Nebraska 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 Grant Nebraska 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 in Detail

This molding process has been used since early times for creatingvseverl items. Egyptians for instance, employed rotomoulding procedures in the of ceramics. The Swiss were also working with this rotation style to generate hollow chocolate eggs. Some plastic product lines in the USA were developed utilizing this method some time between 1940 and 1950. Due to the fact that it was viewed to be a relatively slow-moving system, the process has however taken long to catch on

1. Mold fitting.
A predetermined volume of polymer in particle form is packed into a hollow mold. The mould is usually composeded of cast aluminium or sheet steel substance. The color chosen for the final goods is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this type of plastic assembly.

Preheating 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 secured and put within the oven.

2. The heat and fusion phase.
Once inside the oven, the mould is spun on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done slowly, about 20 spins per min. One thing that is vital at this moment is the amount of time the mold will spend inside the oven. If it overstays, the material will lose stability and strength, creating a weak product. If it is taken out from the oven too early, the polymer will not have melted correctly, which generates bubbles in the finished item.

3. Mold cooling.
When the component 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 creates a cool mist. When the material cools, it reduces slightly for ease of removal from the mould. This is yet another measure that depends upon a lot on the right timing, since rapid cooling decreases the material too rapidly, causing warping of the material.

4. The discharging or de-molding step.
When the product inside te mould has cooled correctly, the person handling the process can then remove the finished product from the mould. The function is repeated from the beginning, making a number of identical products.

For more information on the different rotational rotomolding options offered for the Grant NE 69140 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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