Active pharmaceutical ingredients (APIs) are the foundation of the pharmaceutical industry chain, and chemical API workshops have become a mainstream cleanroom project. Their design and development must consider flexible production, safety compliance, and industrial upgrading needs. The following is a summary of the core content.
I. Overall Design of API Workshops
Multi-functional workshops are the current mainstream design concept, adaptable to small-batch, multi-variety order requirements, offering advantages such as quick changeover and low cost. Equipment must meet requirements for easy cleaning, strong versatility, and good airtightness, and a rigorous co-line risk assessment must be conducted. High-activity substances with OEB≥4 should be produced on dedicated lines, and highly allergenic drugs such as penicillin require dedicated plant and equipment. While OEB5 substances can be produced on shared lines after risk assessment, dedicated lines or segregated areas are often used in practice.
Unit modular design is suitable for small-batch, high-value-added projects. Production processes are broken down into units such as feeding, reaction, and drying, and flexible production is achieved through module combinations, allowing companies to dynamically adjust production lines according to market demand.
II. Rational Layout of API Workshops
The layout must meet the requirements of functional zoning, rational material and personnel flow, and safety compliance. API workshops are mostly Class A fire hazard buildings and should not contain offices or rest rooms. Building height should not exceed 24 meters, and a long, narrow layout is preferred due to its excellent evacuation and explosion relief capabilities.
Equipment layout is divided into vertical flow and horizontal flow. The former is suitable for large-scale production with large reaction vessels, utilizing gravity for material transfer and segregated zones; the latter is suitable for small-scale production, with material transfer on the same floor and segregated zones to prevent cross-contamination. High-risk processes require full-process automation, the refining, drying, and packaging areas must meet GMP cleanroom requirements, and critical steps for sterile APIs must be completed in A/B grade environments.
Chemical API workshop design has integrated flexible concepts and sustainability requirements, focusing on multi-functionality, modularity, and inherent safety.
Suzhou Pharma Machinery Co.,Ltd.
2026/02/16
Icey
