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

roto-molding-Chelsea-Rotational molding pertains to a plastic production practice that creates hollow stress-free products. The procedure relies upon high temperatures and bi axial rotation to follow up with seamless, one piece items that have a variety of designs, sizes and colors. This procedure is also known as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The feature that makes this unique from other plastic manufacturing procedures because no pressure is required. It also has few contenders when it involves the production of large size hollow products which are resilient and inexpensive.There is a wide variety of product lines that are generated by this process including big water tanks, automobile items, intricate molded medical items, leisure equipment, toys, canoes, industrialized equipment among many others.This is because of the flexibility in regards to type and forms that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Chelsea VT 5038, 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 rotocasting 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-Chelsea-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 Chelsea 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 Rotomolding Procedure Components

This molding operation has been used since earlier times for creatingvseverl items. Egyptians for instance, utilized rotocasting systems in the manufacturing of ceramics. The Swiss were also making use of this rotation design to generate hollow chocolate eggs. Some plastic items in the USA were made using this technique some time between 1940 and 1950. The process has however taken very long to take affect because it was considered as being a somewhat slow process

1. Mold prep work.
A fixed volume of polymer in particle form is packed into a hollow mold. The mold is usually made of cast aluminium or sheet steel component. The coloring wanted for the finished 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 style of plastic assembly.

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

2. The heating and fusion process.
Once inside the oven, the mould is rotated on two axis so the powdered polymer melts from the heat and coats the inside if the mould. The rotation is done slowly, about 20 rotations per sixty seconds. Something that is critical at this point is the period of time the mold will spend inside the oven. If it overstays, the component will lose value and durability, generating a poor item. If it is removed from the oven too early, the polymer will not have liquefied correctly, which produces bubbles in the completed item.

3. Mould cooling.
When the material 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 a cool mist. When the product cools, it shrinks a little for ease of removal from the mould. This is an additional measure that depends a lot on the correct timing, since rapid cooling reduces the material too quick, causing bending of the product.

4. The un-loading or de-molding step.
When the material inside te mold has cooled correctly, the person managing the operation can then take out the finished product from the mould. The process is repeated from the beginning, giving a series of exact items.

For more information on the different rotational rotomolding options offered for the Chelsea VT 5038 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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