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

rotomolding-Hobart-Rotational moulding pertains to a plastic production procedure that generates hollow stress-free product lines. The function uses high temperatures and bi axial rotation to come up with seamless, one piece items that have varying forms, sizes and colors. This technique is also known as roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing procedures in that no pressure is called for. It also has few contenders when it involves the creation of large hollow items which are resilient and inexpensive.There is a wide range of product lines that are produced by this process including large water tanks, automobile items, intricate molded medical products, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in regards to design and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Hobart IN 46342, 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

Custom Molded-Hobart-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 Indiana 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 Hobart Indiana 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 products. Egyptians for instance, utilized rotocasting solutions in the producing of ceramics. The Swiss were also making use of this rotation type to create hollow chocolate eggs. Some plastic items in the USA were made utilizing this technique some time between 1940 and 1950. The procedure has however taken very long to take affect because it was considered as being a somewhat slow process

1. Mould fitting.
A predetermined volume of polymer in particle form is loaded into a hollow mold. The mold is usually composeded of cast aluminium or sheet steel substance. The coloring intended 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 type of plastic manufacturing.

Pre-heating of the oven follows, and it may be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then locked and installed inside the oven.

2. The heating and fusion procedure.
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, about 20 rotations per minute. The main thing that is critical at this moment is the amount of time the mold will spend within the oven. If it stays to long, the material will lose value and durability, making a faulty product. If it is extracted from the oven prematurely, the polymer will not have melted properly, which creates bubbles in the finalized product line.

3. Mold cooling.
When the material has sufficiently spent the right amount of time in the oven, it is then taken out for cooling. This can be done by air or water, or sometimes a mixture of both which creates a cool mist. When the component cools, it reduces slightly for ease of extraction from the mold. This is another measure that relies a lot on the ideal timing, since rapid cooling decreases the material too quickly, causing bending of the material.

4. The discharging or de-moulding phase.
Once the product within te mould has cooled successfully, the molder managing the process can then take out the finished item from the mould. The technique is repeated from the start, giving a series of similar items.

For more information on the different rotational rotomolding options offered for the Hobart IN 46342 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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