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Bosch: Sterilization tunnels

Modular, energy-efficient drying and sterilization tunnels address customer-specific requirements.

Modular, energy-efficient drying and sterilization tunnels address customer-specific requirements.
Modular, energy-efficient drying and sterilization tunnels address customer-specific requirements.

Bosch Packaging Technology presents the new 6000, 7000, and 8000 series of the HQL drying and sterilization tunnels. This new generation of tunnels is an energy-saving, flexible advancement of the HQL series for sterilizing and depyrogenizing pre-cleaned ampules, injection and infusion bottles, as well as cartridges and syringes.

The modular design of the HQL series ensures a customer-specific tunnel arrangement. Each sterilizing and cooling module contains the entire technology for the respective process step. The modules can be put together variably, thereby allowing the new series to be flexibly integrated into different line concepts. In addition, the new design facilitates access to critical areas, such as HEPA filters, which can be easily replaced, thus simplifying tunnel maintenance.

Pharmaceutical manufacturers profit from the increased energy efficiency of the new HQL series. In contrast to most sterilization tunnels, the new series requires less energy for electrical heating and ventilation due to an optimized airflow and measures for heat recovery. A flexible pressure zone concept ensures increased process safety by adapting tunnel pressures in different zones to customers’ requirements. The new tunnels are further characterized by a reduced overall tunnel size, making them shorter than the previous series.

Each tunnel series is available in one standardized bandwidth so customers can choose the best model for their production requirements: The HQL 6000 is 600 mm, the HQL 7000 is 800 mm, and the HQL 8000 is 1,200 mm.

With its broad conveyor belt and several sterilizing and cooling modules, the HQL 8000 is suitable for large glass containers and downstream filling machines with high output. The horizontal transport belt made of stainless-steel wire mesh ensures all freestanding and non-freestanding containers are transported through the HQL tunnel gently and without abrasion.

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