Packaging Technology

Interpack 2014 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
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  • March 06, 2014
  • Packaging Technology
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press release

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, explained. 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 explained. 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.

Matthias Angelmaier, phone: +49 7951 402-7944

Based in Waiblingen near Stuttgart, Germany, and employing 6,200 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. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Further information is available online at and,

PI8478 - March 06, 2014

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