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

rotational molding-Helena-Rotational molding refers to a plastic manufacturing procedure that produces hollow stress-free product lines. The method relies on high temperatures and bi axial rotation to come up with seamless, one piece objects that have several designs, colors and sizes. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this unique from other plastic manufacturing techniques that no pressure is called for. It also has few competitors when it pertains to the creation of large size hollow products which are long-lasting and inexpensive.There is a wide variety of products that are created by this process including big water tanks, automobile items, intricate molded medical products, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the versatility in terms of type and shapes that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Helena OH 43435, 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 rotational moulding 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-Helena-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 Ohio 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 Helena Ohio 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 products. Egyptians as an example, applied roto-molding techniques in the making of ceramics. The Swiss were also applying this rotation approach to create hollow chocolate eggs. Some plastic products in the USA were created using this method some time between 1940 and 1950. Given that it was regarded to be a fairly slow-moving method, the approach has however taken long to become popular

1. Mold fitting.
A fixed volume of polymer in grain form is filled into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel substance. The coloring wanted for the end product is pre compounded into the polymer. The most generally used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic manufacturing.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mold with the powdered polymer is then sealed and placed within the oven.

2. The heat and fusion phase.
Once placed into the oven, the mould is turned on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The turning is done slowly, about 20 spins per minute. Something that is vital at this point is the amount of time the mold will spend inside the oven. If it overstays, the material will lose stability and durability, producing a weak item. If it is extracted from the oven too early, the polymer will not have flowed properly, which creates bubbles in the completed product.

3. Mold cooling down.
When the product has completely spent the right amount 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 component cools, it reduces somewhat for ease of extraction from the mould. This is yet another procedure that depends a lot on the ideal timing, since quick cooling reduces the material too fast, causing bending of the item.

4. The discharging or de-moulding phase.
When the product inside te mold has cooled adequately, the molder handling the operation can then take out the finished product from the mould. The process is repeated from the start, giving a series of exact items.

For more information on the different rotational molding options offered for the Helena OH 43435, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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