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

rotomoulding-Stowe-Rotational molding pertains to a plastic manufacturing technique that makes hollow stress-free products. The function relies upon high temperatures and bi axial rotation to come up with seamless, one piece objects that have a variety of shapes, colors and sizes. This procedure is also called rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The attribute that makes this different from other plastic manufacturing processes that no pressure is involved. It also has few competitors when it comes down to the manufacture of large hollow items which are durable and inexpensive.There is a variety of items that are created by this process including big water tanks, automobile materials, sophisticated shaped medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the versatility in regards to design and forms that the process manufactures

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Stowe VT 5672, 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 Manufacturing-Stowe-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 Vermont 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 Stowe Vermont 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 Roto-Molding Method in Detail

This moulding method has been used since earlier times for creatingvseverl products. Egyptians for instance, used rotomoulding procedures in the making of ceramics. The Swiss were also applying this rotation approach to make hollow chocolate eggs. Some plastic products in the USA were made using this technique some time between 1940 and 1950. Due to the fact that it was thought of to be a very slow procedure, the procedure has however taken long to catch on

1. Mould readying.
A fixed volume of polymer in powder form is packed into a hollow mould. The mould is usually constructed from cast aluminium or sheet steel component. The coloration needed for the end 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 design of plastic production.

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 mould with the powdered polymer is then locked and placed into the oven.

2. The heating up and fusion step.
Once inside the oven, the mould 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 rotations per sixty seconds. The main thing that is important at this point is the amount of time the mould will spend inside the oven. If it overstays, the material will lose value and durability, making a poor item. If it is taken out from the oven too early, the polymer will not have flowed properly, which develops bubbles in the finished product line.

3. Mould cooling.
When the material has sufficiently spent the right amount 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 a cool mist. When the material cools, it reduces a little for ease of extraction from the mould. This is one more step that relies a lot on the ideal timing, since quick cooling shrinks the material too quick, causing warping of the product.

4. The un-loading or de-moulding phase.
Once the material inside te mould has cooled effectively, the person managing the process can then remove the finalized item from the mold. The process is repeated from the start, providing a number of exact product lines.

For more information on the different rotational rotomolding options offered for the Stowe VT 5672 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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