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

rotational molding-Hubbardston-Rotational moulding refers to a plastic production solution that creates hollow stress-free product lines. The technique relies upon high temperatures and bi axial rotation to come up with seamless, one piece products that have a wide range of designs, sizes and colors. This method is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing procedures that no pressure is involved. It also has few competitors when it comes down to the creation of large hollow items which are long-lasting and inexpensive.There is a wide range of product lines that are produced by this process including big water tanks, automobile materials, complex molded medical items, leisure equipment, toys, kayaks, industrial equipment among many others.This is because of the flexibility in terms of design and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Hubbardston MA 1452, 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 Manufacturing-Hubbardston-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 Hubbardston 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 Method Components

This moulding technique has been used since early times for creatingvseverl product lines. Egyptians for instance, used rotational molding systems in the manufacturing of ceramics. The Swiss were also employing this rotation technique to create hollow chocolate eggs. Some plastic products in the USA were created utilizing this method some time between 1940 and 1950. The technique has however taken long to take affect because it was considered to be a pretty slow process

1. Mold prep work.
A fixed measure of polymer in powder form is loaded into a hollow mould. The mould is usually made from cast aluminium or sheet steel material. The color intended for the final 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 manufacturing.

Pre-heating of the oven starts, 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 inserted inside the oven.

2. The heating up and fusion procedure.
Once inside the oven, the mold is revolved on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The rotation is done slowly, about 20 rotations per sixty seconds. The main thing that is critical at this moment is the amount of time the mould will spend inside the oven. If it overstays, the material will lose stability and strength, producing a faulty product. If it is extracted from the oven prematurely, the polymer will not have flowed properly, which generates bubbles in the finished product line.

3. Mould cooling down.
When the component has completely spent the enough 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 generates a cool mist. When the component cools, it reduces slightly for ease of removal from the mould. This is an additional step that relies a lot on the right timing, since quick cooling decreases the material too quick, causing warping of the material.

4. The discharging or de-molding phase.
Once the material inside te mold has cooled correctly, the molder managing the process can then remove the completed item from the mold. The procedure is repeated from the start, supplying a number of identical product lines.

For more information on the different rotational rotomolding options offered for the Hubbardston MA 1452 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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