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

rotational molding-Spencer-Rotational molding refers to a plastic manufacturing practice that produces hollow stress-free product lines. The procedure depends on high temperatures and bi axial rotation to come up with seamless, one piece items that have many different forms, colors and sizes. This technique is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The component that makes this different from other plastic manufacturing techniques that no pressure is involved. It also has few contenders when it pertains to the production of sizable hollow products which are resilient and inexpensive.There is a wide variety of items that are produced by this process including big water tanks, automobile materials, complex designed medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is due to the flexibility in regards to design and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Spencer NE 68777, 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 Molding-Spencer-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 Spencer 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 Roto-Molding Process in Detail

This moulding operation has been used since early times for creatingvseverl products. Egyptians for example, applied roto-molding methods in the making of ceramics. The Swiss were also applying this rotation approach to create hollow chocolate eggs. Some plastic items in the USA were created using this technique some time between 1940 and 1950. The procedure has however taken long to catch on because it was looked at to be a somewhat slow-moving process

1. Mould readying.
A predetermined quantity of polymer in grain form is loaded into a hollow mold. The mould is usually constructed from cast aluminium or sheet steel component. The color tone desired for the end item 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 format of plastic production.

Pre-heating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is warmed to temperatures between 500-700F. The mold with the powdered polymer is then secured and installed within the oven.

2. The heat and fusion procedure.
Once within the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The spinning is done gradually, about 20 revolutions per minute. One thing that is critical at this point is the amount of time the mold will spend within the oven. If it overstays, the material will lose value and strength, generating a faulty product. If it is removed from the oven too early, the polymer will not have melted properly, which creates bubbles in the finalized item.

3. Mould cooling.
When the component has completely spent the enough of time in the oven, it is then removed for cooling. This can be done by air or water, or sometimes a mixture of both which a cool mist. When the component cools, it reduces somewhat for ease of removal from the mold. This is yet another procedure that relies a lot on the ideal timing, since quick cooling decreases the material too fast, causing bending of the product.

4. The removing or de-moulding step.
When the material inside te mould has cooled successfully, the person taking care of the process can then extract the finalized product from the mould. The procedure is repeated from the start, giving a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Spencer NE 68777 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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