Sterilization Tunnels meet customer-specific requirements.

Press Release Summary:

Featuring modular design to ensure customer-specific arrangement, HQL Series 6000, 7000, and 8000 are suitable for sterilizing and depyrogenizing pre-cleaned ampoules, injection and infusion bottles, as well as cartridges and syringes. Systems are available in standardized bandwidths of 600, 800, and 1,200 mm, respectively. Optimized airflow and measures for heat recovery help minimize energy required for electrical heating and ventilation, while flexible pressure zone ensures process safety.

Original Press Release:

Bosch Introduces New HQL Sterilization Tunnel Series

Energy-efficient and space-saving

Modular design for customer-specific requirements

Increased energy efficiency through energy-saving components and measures for heat recovery

Standardized conveyor belt sizes for optimal adaptation to customer processes

Duesseldorf, Germany — At Interpack 2014, Bosch Packaging Technology, a leading supplier of process and packaging technology, presents the new 6000, 7000 and 8000 series of the HQL drying and sterilization tunnel. This new generation of tunnels is an energy-saving and especially flexible advancement of the proven HQL series for sterilizing and depyrogenizing pre-cleaned ampoules, 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 now be variably put together. This allows the new series to be flexibly integrated into different line concepts,” Matthias Angelmaier, product manager at Bosch Packaging Technology, explains. In addition, the new design facilitates access to critical areas such as HEPA filters, which can be easily replaced, thus simplifying maintenance of the tunnels.

Savings in energy and space

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 the different zones to customers’ requirements. The new tunnels are further characterized by a reduced overall tunnel size, making them shorter and more space-saving than the previous series.

Three standardized conveyor belt sizes

The new tunnels are available in three standardized bandwidths of 600 respectively 800 millimeters for the HQL 6000 and 7000 and 1 200 millimeters for the HQL 8000, which is on display at Interpack. With its different sizes, the drying and sterilization tunnel can be flexibly adapted to different requirements. “Based on the physical properties of our customers’ packaging material we calculate, which tunnel modules are adequate for their processes,” Angelmaier explains. This subsequently facilitates safe process validation and documentation. “The HQL 8000, for instance, with its broad conveyor belt and several sterilizing and cooling modules is suited for large glass containers and downstream filling machines with high output.” The horizontal transport belt made of a stainless steel wire mesh makes sure all freestanding and non-freestanding containers are transported through the HQL tunnel gently and without abrasion.

Bosch's technologies are on display at Interpack 2014, Duesseldorf, Germany from May 8 to 14 in hall 6, booth A31 – C58.

Contact: Contact person for press inquiries:

Matthias Angelmaier, Christin Poenisch,

phone: +49 7951 402-7944 phone: +49 711 811-58502

Based in Waiblingen near Stuttgart, Germany, and employing 5,000 associates, the Bosch Packaging Technology division is one of the leading suppliers of process and packaging technology. At over 30 locations in more than 15 countries worldwide, a highly-qualified workforce develops and produces complete solutions for the pharmaceuticals, food, and confectionery industries. These solutions are complemented by a comprehensive after-sales service portfolio. A global service and sales network provides customers with local points of contact. Additional information is available online at

The Bosch Group is a leading global supplier of technology and services. According to preliminary figures, its roughly 281,000 associates generated sales of 46.4 billion euros in 2013 (Note: due to a change in the legal rules governing consolidation, the 2013 figures can only be compared to a limited extent with the 2012 figures). Its operations are divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its more than 360 subsidiaries and regional companies in some 50 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2013, Bosch applied for some 5,000 patents worldwide. The Bosch Group’s products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is “Invented for life.” Additional information is available online at and

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