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

rotomoulding-Dobbs Ferry-Rotational moulding refers to a plastic manufacturing practice that creates hollow stress-free products. The procedure relies upon high temperatures and bi axial rotation to follow up with seamless, one piece products that have various designs, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl types.

The component that makes this unique from other plastic manufacturing techniques in that no pressure is called for. It also has few contenders when it involves the production of sizable hollow items which are long-lasting and inexpensive.There is a wide range of items that are generated by this process including large size water tanks, automobile materials, sophisticated shaped medical items, leisure equipment, toys, kayaks, commercial equipment among many others.This is because of the flexibility in regards to style and shapes that the process develops

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Dobbs Ferry NY 10522, 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-Dobbs Ferry-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 New York 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 Dobbs Ferry New York 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 Process Components

This molding procedure has been used since early times for creatingvseverl items. Egyptians for instance, employed rotocasting systems in the making of ceramics. The Swiss were also using this rotation style to generate hollow chocolate eggs. Some plastic items in the USA were created utilizing this procedure some time between 1940 and 1950. The procedure has however taken long to take affect because it was looked at to be a pretty slow-moving process

1. Mold preparation.
A fixed amount of polymer in grain form is filled into a hollow mold. The mold is usually crafted from cast aluminium or sheet steel material. The color tone intended for the end goods 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 production.

Pre-heating of the oven follows, and it can 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 positioned into the oven.

2. The heat and fusion process.
Once within the oven, the mold is rotated on two axis so the powdered polymer melts from the heat and layers the inside if the mould. The rotation is done gradually, about 20 spins per sixty seconds. Something that is crucial at this moment is the amount of time the mould will spend inside the oven. If it overstays, the component will lose value and strength, producing a weak product. If it is removed from the oven prematurely, the polymer will not have melted correctly, which produces bubbles in the completed product.

3. Mold cooling.
When the product has completely 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 product cools, it shrinks somewhat for ease of removal from the mold. This is yet another measure that relies a lot on the right timing, since quick cooling decreases the material too quick, causing bending of the material.

4. The un-loading or de-moulding phase.
Once the component inside te mould has cooled correctly, the molder handling the process can then remove the finished product from the mould. The technique is repeated from the start, providing a series of exact product lines.

For more information on the different rotational molding options offered for the Dobbs Ferry NY 10522 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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