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

rotational molding-Lexington Park-Rotational moulding refers to a plastic manufacturing practice that produces hollow stress-free items. The function depends on high temperatures and bi axial rotation to follow up with seamless, one piece products that have several shapes, sizes and colors. This technique is also called roto-molding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The benefit that makes this different from other plastic manufacturing techniques that no pressure is called for. It also has few competitors when it comes down to the manufacture of sizable hollow items which are resilient and inexpensive.There is a variety of items that are created by this process including large size water tanks, automobile materials, intricate designed medical items, recreation equipment, toys, kayaks, industrialized equipment among many others.This is because of the versatility in regards to design 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 Lexington Park MD 20653, 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 rotomolding 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-Lexington Park-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 Lexington Park 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 process has been used since earlier times for creatingvseverl products. Egyptians for example, utilized roto-molding techniques in the making of ceramics. The Swiss were also employing this rotation design to generate hollow chocolate eggs. Some plastic items in the USA were manufactured using this method some time between 1940 and 1950. The process has however taken very long to catch on because it was looked at to be a somewhat slow process

1. Mould prep work.
A fixed volume of polymer in particle form is filled into a hollow mold. The mold is usually made from cast aluminium or sheet steel substance. The color tone intended 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 style of plastic manufacturing.

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

2. The heating and fusion procedure.
Once within the oven, the mould is turned on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The spinning is done gradually, about 20 rotations per min. Something that is vital at this moment is the period of time the mold will spend within the oven. If it overstays, the material will lose value and durability, creating a faulty product. If it is taken out from the oven too early, the polymer will not have melted correctly, which creates bubbles in the finalized product.

3. Mould cooling.
When the material has sufficiently spent the enough of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the material cools, it reduces somewhat for ease of removal from the mould. This is yet another procedure that depends a lot on the correct timing, since rapid cooling reduces the material too rapidly, causing warping of the item.

4. The unloading or de-moulding phase.
When the component inside te mold has cooled properly, the person taking care of the operation can then extract the completed product from the mould. The function is repeated from the start, making a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Lexington Park MD 20653 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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