Rotomolding Production Of Pet Preforms With High Utilization Rate

Posted by preform nicole on November 12th, 2018

Rotomolding technology is widely used because it has many advantages. Let us look at the specific advantages. Which products does rotomolding technology apply to?
1. The rotomolding process is suitable for large or very large plastic parts with low investment cost.
The rotomolding process requires only enough machine strength to support the weight of the material, the Pet Preform Mould and the machine itself, and the clamping force that prevents material leakage, so even if the plastic parts are very large, there is no need to use heavy equipment and molds, rotomolding machines and The mold is very simple, the manufacturing time is short, and the cost is low. The mold can be machined, cast or fabricated from materials such as stainless steel or aluminum. In theory, if rotomolding is used, plastic parts have almost no upper limit. However, the production of large plastic containers by blow molding requires very expensive and huge blow molding equipment. In addition, rotomolding costs are one-third to one-quarter lower than blow molding or injection molding if parts of similar size are produced.
2. Rotomolding is very suitable for multi-variety and small-volume production.
Rotational molding equipment also has great flexibility. The rotomolding machine can be installed with either a large mold or a small mold. It can not only produce different sizes of plastic parts, but also produce parts of different sizes and shapes at the same time; Parts have the same material and thickness, so we can produce them simultaneously by rotomoulding.
3. It is easy to change the color of the product during rotomolding.
In rotomolding, we need to add the material directly to the mold, so when we need to change the color of the product, there is no waste of material and no time to clean the machine and mold. When we use the same mold to produce the same plastic, you can also add different colors to different molds and then produce plastic products of different colors at the same time. It can also be molded graphics such as logos and embossing.
4. Rotary molding is suitable for plastic parts with hollow complex shapes. Rotary molding can also be used to place a variety of inserts that produce a completely enclosed product with a thickness of more than 5 mm or more.
5, rotomolding production of Pet Preforms can be fully and effectively utilized to help save raw materials; in addition, in the rotomoulding process, there are no runners, gates or other waste, once the materials and machines are well commissioned, there is almost no production process Waste plastics, so the rotational molding process has a high plastic utilization rate.
In addition, the wall thickness of the rotomolded product (2mm or more) can be freely adjusted without adjusting the mold.