Depyrogenation tunnels are used in pharmaceutical filling lines to sterilize glass containers before they are aseptically filled. These tunnels use forced hot air at temperatures up to 600 F (350 C)

Bosch HQL drying and depyrogenation tunnels feature unidirectional flow, process temperature progression curves, and significantly reduced sterilization times. They give the repeatable accuracy necessary for successful validation, qualification, and reliable production capacity.

Standard features

• Laminar air flow for temperature stability and uniform heat distribution
• Variety of belt widths from 400 to 1200 mm (12" - 48")
• Safe zone pressure balance
• Automatic density control for better temperature stability
• Friction-free container transport
• Easy access to tunnel interior for cleaning and maintenance
• Optional sterilizable cool zone for ensured container sterility
• Can be used to sterilize glass vials, ampoules, and cartridges