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

rotational molding-Burtonsville-Rotational molding pertains to a plastic manufacturing solution that produces hollow stress-free items. The technique utilizes high temperatures and bi axial rotation to follow up with seamless, one piece items that have different forms, colors and sizes. This method is also known as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl types.

The component that makes this different from other plastic manufacturing procedures that no pressure is involved. It also has few competitors when it pertains to 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 size water tanks, automobile materials, intricate molded medical products, leisure equipment, toys, canoes, industrialized equipment among many others.This is due to the versatility in regards to design and shapes that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Burtonsville MD 20866, 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-Burtonsville-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 Burtonsville 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 Method Components

This moulding procedure has been used since early times for creatingvseverl products. Egyptians as an example, worked with rotational molding solutions in the making of ceramics. The Swiss were also making use of this rotation method to generate hollow chocolate eggs. Some plastic products in the USA were manufactured using this procedure some time between 1940 and 1950. The system has however taken very long to catch on because it was thought of to be a pretty slow-moving process

1. Mould fitting.
A fixed quantity of polymer in grain form is filled into a hollow mould. The mold is usually made of cast aluminium or sheet steel substance. The color wanted for the finished goods 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 engineering.

Preheating 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 mold with the powdered polymer is then sealed and positioned inside the oven.

2. The heating and fusion step.
Once within the oven, the mold is spun on two axis so the powdered polymer liquefies from the heat and layers the inside if the mold. The spinning is done slowly and gradually, about 20 spins per minute. One thing that is critical at this point is the period of time the mould will spend inside the oven. If it overstays, the product will lose value and strength, creating a faulty product. If it is taken out from the oven too early, the polymer will not have melted correctly, which generates bubbles in the finalized product.

3. Mould cooling.
When the component 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 material cools, it reduces slightly for ease of extraction from the mould. This is yet another measure that depends a lot on the right timing, since quick cooling shrinks the material too quickly, causing bending of the material.

4. The discharging or de-molding phase.
As soon as the product within te mold has cooled successfully, the person managing the procedure can then extract the finished product from the mould. The procedure is repeated from the start, supplying a series of exact products.

For more information on the different rotational rotomolding options offered for the Burtonsville MD 20866 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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