HOW A PHARMA MANUFACTURER ELIMINATED DUST EXPOSURE
DURING ROLLER COMPACTOR POWDER TRANSFER
EXECUTIVE SUMMARY
A major pharma manufacturer standardized containment across their new high-potency facility using Andocksysteme’s ASBV DN250 split butterfly valves, eliminating operator exposure during roller compactor charging and supporting multi-product campaigns with validated cleaning protocols.
- Closed-system transfer for OEL <1 µg/m³: Eliminates dust exposure during IBC connection and powder discharge through validated split butterfly valve technology, reducing reliance on PPE and local exhaust ventilation.
- Multi-product flexibility with proven reliability: Single standardized containment interface simplifies operator training, supports multiple APIs via validated quick-changeover cleaning, and delivers 20+ years of maintenance-free operation.
- Early partnership in facility design pays dividends: 30+ years of proven performance enabled early integration of containment requirements into facility planning, avoiding costly retrofits and ensuring GMP compliance from day one.
Project Requirements
A major pharmaceutical manufacturer planned a significant expansion of their European production capabilities, designing one of the continent’s most advanced high-containment facilities for solid dosage manufacturing. The new plant would produce billions of tablets and capsules annually for oncology, cardiovascular, and specialty therapeutics— handling potent compounds requiring occupational exposure limits below 1 µg/m³. During the planning phase,
Andocksysteme worked closely with the customer’s engineering team to identify the optimal containment solution for each critical powder transfer point. At the roller compactor inlet, where powder blends are charged into the dry granulation process, the project team identified several key requirements:
- Closed transfer capability to prevent operator exposure during IBC connection and powder discharge, where fine
particles are most likely to become airborne - Validated containment performance for materials with OEL <1 µg/m³, meeting modern containment philosophy
requirements from the project’s inception - Multi-product campaign flexibility with validated cleaning procedures and reliable cross-contamination prevention between product changeovers
- Documentation supporting the customer’s GMP qualification activities
- Long-term reliability for a major capital investment requiring proven technology over decades of continuous
operation - Mechanical robustness to handle real-world docking conditions with mobile IBCs in a high-volume production
environment
Based on more than 30 years of successful partnership and proven performance across the customer’s manufacturing
network, Andocksysteme was engaged early in the facility design process to specify containment interfaces for all highpotency powder handling points.
Selected Product: ASBV DN250 Split Butterfly Valve
The customer selected the Andocksysteme ASBV DN250 multi-use split butterfly valve as their standard containment solution for the roller compactor inlet and all high-containment transfer points throughout the new facility.
Operating Principle
The ASBV operates on the split butterfly valve principle: two valve halves, active and passive, form a sealed unit during docking. Both halves remain closed during approach, open together only when fully sealed, and close before separation.
In this installation, the ASBV passive valve is mounted on stainless steel IBCs, while the active valve is installed on the roller compactor feed inlet. This configuration enables gravity-fed powder transfer in a fully contained environment.
Mechanical Design Features
- Tolerance compensation: accommodates axial offset up to 14mm and angular inclination up to 3° (DN50) or 1° (larger sizes)
- Quick-removable product contact parts: 10-20kg components, removable with 6 screws (or tool-free option)
- 180° docking flexibility: passive valve can dock in two positions
- Electro/pneumatic plug-in system for quick assembly
Integrated sensors for process/washing mode distinction
Benefits and Operational Performance
- Operator Safety: Closed docking eliminates powder exposure during transfers. Validated for OEL <1 µg/m³.
- Production Flexibility: Handles multiple APIs through the same equipment via validated quick-changeover cleaning protocols.
- Installation & Support: 30+ years of SBV specialization ensures expert commissioning, operator training, and
responsive after-sales support. - Delivery Reliability: Focused specialization enables shorter lead times and on-time delivery for tight project schedules.
- Long-Term Reliability: Robust design with standardized parts and maintenance procedures ensures decades of
reliable operation. - Standardization: Single system across all containment points simplifies operator training and enables scalable future
expansion.
Conclusions
This application demonstrates how Andocksysteme’s ASBV multi-use technology enables safe, efficient, and compliant powder transfer in high-potency pharmaceutical manufacturing, particularly at demanding process interfaces like roller compactor inlet operations.
The success of this installation reflects the value of early engagement in facility planning. With more than 30 years of proven performance, the customer specified Andocksysteme containment technology from the project’s inception, ensuring containment requirements were integrated into the facility design rather than retrofitted after construction.
For pharmaceutical manufacturers planning new high-potency facilities, expanding existing operations, or standardizing containment systems, this case demonstrates that proven technology combined with trusted partnership delivers results from day one.
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