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

rotational moulding-West River-Rotational molding pertains to a plastic production method that creates hollow stress-free product lines. The process utilizes high temperatures and bi axial rotation to come up with seamless, one piece objects that have many different shapes, colors and sizes. This procedure is also called rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The benefit that makes this different from other plastic manufacturing techniques because no pressure is called for. It also has few contenders when it involves the production of sizable hollow products which are long lasting and inexpensive.There is a variety of items that are generated by this process including large water tanks, automobile materials, intricate molded medical items, leisure equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in regards to style and forms that the process makes

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in West River MD 20778, 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-West River-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 Maryland 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 West River Maryland 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 Process Components

This molding process has been used since earlier times for creatingvseverl products. Egyptians as an example, worked with rotational molding solutions in the making of ceramics. The Swiss were also using this rotation format to create hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this procedure some time between 1940 and 1950. Considering that it was viewed to be a somewhat slow-moving technique, the process has however taken long to become popular

1. Mold preparation.
A predetermined volume of polymer in particle form is loaded into a hollow mould. The mold is usually constructed from cast aluminium or sheet steel component. The coloration 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 format of plastic assembly.

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

2. The heating up and fusion step.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mold. The turning is done gradually, about 20 rotations per sixty seconds. Something that is crucial at this point is the period of time the mould will spend within the oven. If it overstays, the component will lose stability and strength, making a poor product. If it is taken out from the oven too early, the polymer will not have liquefied properly, which creates bubbles in the completed item.

3. Mold cooling.
When the product has sufficiently spent the correct amount 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 material cools, it shrinks a little for ease of removal from the mold. This is one more measure that relies a lot on the correct timing, since quick cooling shrinks the material too quick, causing bending of the material.

4. The discharging or de-molding step.
Once the component within te mould has cooled adequately, the person managing the operation can then extract the finished item from the mold. The function is repeated from the start, supplying a number of identical items.

For more information on the different rotational rotomolding options offered for the West River MD 20778 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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