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

rotational moulding-Wayland-Rotational molding refers to a plastic production technique that makes hollow stress-free items. The procedure depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have various forms, sizes and colors. This technique is also known as roto-molding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The attribute that makes this different from other plastic manufacturing methods that no pressure is required. It also has few contenders when it comes down to the creation of sizable hollow products which are long-lasting and inexpensive.There is a wide range of products that are produced by this process including big water tanks, automobile materials, complex molded medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in regards to type and forms that the process creates

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Wayland MA 1778, 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 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

Plastic Molding-Wayland-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 Massachusetts 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 Wayland Massachusetts 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 moulding system has been used since early times for creatingvseverl products. Egyptians as an example, utilized rotational molding procedures in the manufacturing of ceramics. The Swiss were also using this rotation technique to generate hollow chocolate eggs. Some plastic items in the USA were developed using this approach some time between 1940 and 1950. The system has however taken long to take affect because it was considered to be a somewhat slow process

1. Mould fitting.
A predetermined measure of polymer in particle form is filled into a hollow mold. The mould is usually crafted from cast aluminium or sheet steel component. The color desired for the finished item is pre compounded into the polymer. The most typically used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this design of plastic manufacturing.

Preheating 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 inserted inside the oven.

2. The heating and fusion procedure.
Once inside the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and overlays the inside if the mould. The turning is done slowly, about 20 rotations per minute. One thing that is important at this moment is the period of time the mold will spend within the oven. If it overstays, the product will lose value and strength, making a weak product. If it is extracted from the oven prematurely, the polymer will not have liquefied properly, which produces bubbles in the finalized product.

3. Mold cooling.
When the product has sufficiently spent the enough 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 generates a cool mist. When the material cools, it shrinks somewhat for ease of removal from the mold. This is yet another measure that depends a lot on the correct timing, since quick cooling shrinks the material too quick, causing bending of the material.

4. The removing or de-molding step.
Once the material inside te mould has cooled properly, the person taking care of the operation can then take out the completed product from the mold. The process is repeated from the start, supplying a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Wayland MA 1778 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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