Manufacture of hollow glass

NACE code 23.13 covers the manufacture of hollow glass products, a critical industry within the broader glass manufacturing sector. This industry plays a vital role in the production of a wide range of everyday items, from drinking glasses and bottles to specialized containers for the pharmaceutical and chemical industries. As a key supplier to numerous other sectors, the manufacture of hollow glass is an important component of the overall economy.

The production of hollow glass involves several key steps. First, raw materials such as sand, soda ash, and limestone are carefully measured and mixed. This mixture is then melted in a furnace at extremely high temperatures, typically around 1,500°C. The molten glass is then formed into the desired shape using techniques like blowing, pressing, or casting. Finally, the glass products undergo annealing, a controlled cooling process that enhances their strength and durability.

The primary inputs for the manufacture of hollow glass include silica sand, soda ash, limestone, and other mineral additives. Specialized machinery, such as glass-blowing equipment and molds, are also essential for the production process. Additionally, the industry relies on a skilled workforce capable of operating the equipment and maintaining quality control throughout the manufacturing cycle.

The hollow glass industry produces a diverse range of products, including bottles, jars, drinking glasses, and other containers. These outputs are widely used in the 11.07 Manufacture of beverages, 21.20 Manufacture of pharmaceutical preparations, and 20.13 Manufacture of other inorganic basic chemicals industries, among others. The versatility and durability of hollow glass make it a valuable material for packaging, storage, and transportation across numerous sectors.