How giant plastic bottles are made Vats: The Amazing Process of Rotational Molding

In this video, you'll see the fascinating process of industrially producing large-scale plastic parts using rotational molding. A craftsman pours polymer powder into a special mold, which is then rotated in a furnace, evenly distributing the molten plastic across the mold's walls. The result is a seamless, ultra-strong part of enormous capacity, ready for use in the harshest conditions.

This method is ideal for creating hollow and very large objects, as it eliminates internal stress in the material, ensuring durability. The main advantage of these basins is the complete absence of seams, eliminating the possibility of leaks and increasing the overall strength of the structure. Low-density or high-density polyethylene, which is resistant to chemicals and temperature fluctuations, is most often used. Equipment for these products can be as large as a small house, allowing for the casting of containers with a capacity of several thousand liters.