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

rotomoulding-Grand Valley-Rotational molding refers to a plastic manufacturing practice that makes hollow stress-free products. The procedure depends on high temperatures and bi axial rotation to follow up with seamless, one piece items that have a wide range of designs, sizes and colors. This procedure is also referred to as rotomolding or rotocasting. Sometimes the term slush molding is used for certain liquid vinyl forms.

The function that makes this unique from other plastic manufacturing procedures because no pressure is required. It also has few competitors when it pertains to the manufacture of sizable hollow products which are durable and inexpensive.There is a variety of product lines that are produced by this process including large water tanks, automobile materials, intricate molded medical items, recreation equipment, toys, canoes, industrial equipment among many others.This is because of the flexibility in regards to type 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 Grand Valley PA 16420, 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

Custom Molding-Grand Valley-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 Pennsylvania 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 Grand Valley Pennsylvania 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 process has been used since ancient times for creatingvseverl product lines. Egyptians as an example, utilized roto-molding techniques in the making of ceramics. The Swiss were also applying this rotation technique to make hollow chocolate eggs. Some plastic product lines in the USA were created utilizing this technique some time between 1940 and 1950. The procedure has however taken long to take affect because it was considered to be a somewhat slow process

1. Mold readying.
A fixed quantity of polymer in powder form is loaded into a hollow mould. The mould is usually built from cast aluminium or sheet steel material. The color tone desired for the final 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 style of plastic manufacturing.

Preheating 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 mold with the powdered polymer is then sealed and put within the oven.

2. The heating up and fusion step.
Once inside the oven, the mould is rotated on two axis so the powdered polymer liquefies from the heat and layers the inside if the mould. The rotation is done gradually, about 20 spins per min. The main thing that is crucial 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, generating a faulty item. If it is removed from the oven too early, the polymer will not have liquefied properly, which generates bubbles in the completed item.

3. Mould cooling.
When the material 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 creates a cool mist. When the material cools, it reduces slightly for ease of extraction from the mould. This is one more procedure that depends a lot on the right timing, since quick cooling decreases the material too quick, causing bending of the material.

4. The unloading or de-molding step.
Once the component inside te mold has cooled correctly, the molder managing the procedure can then remove the finished item from the mold. The procedure is repeated from the start, making a number of exact product lines.

For more information on the different rotational molding options offered for the Grand Valley PA 16420 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

Other areas we service, go here to plastic molding

Local Resources

Production Example
Google Map