Small-volume injection manufacturing and packaging workshop design

Nov 21, 2025 Leave a message

Automated filling lines are crucial for ensuring efficient, safe, and stable drug production in small-volume injection manufacturing and packaging workshops.

Technical Specifications and Equipment Composition: Automated filling lines typically consist of core equipment such as ultrasonic ampoule cleaners, tunnel sterilizers, and multi-needle string filling and sealing machines, integrating ampoule cleaning, sterilization, filling, and sealing. Their technical specifications must comply with GMP standards, ensuring a Class C cleanroom environment and critical operations are performed under Class A laminar flow protection. For example, the filling process requires control of filling speed and accuracy, and is equipped with an online weighing system for real-time monitoring.

Operating Procedure: The operating procedure of the automated filling line is highly integrated, with the main steps as follows: Ampoule Loading and Cleaning: Ampoules enter the Class D washing room through a logistics channel and undergo multi-station cleaning using ultrasonic cleaners, including spray water, circulating water, and compressed air.

Sterilization and Drying: After cleaning, the ampoules enter a tunnel oven for sterilization and drying under 340℃ hot air circulation, and then cool to a suitable temperature.

Filling and Sealing: Under Class A protection, the ampoules are fed into the bottle via a screw conveyor, undergoing pre-nitrogen filling, medication filling, and post-nitrogen filling, followed by preheating and string sealing to form a semi-finished product.

Integrated Control: The entire process is synchronized and coordinated through an integrated line, reducing manual intervention and improving efficiency.

Quality Control Measures: Quality control is the core of the automated filling line, including:

Environmental Monitoring: Filling and capping are carried out under Class A laminar flow protection, with real-time online particle monitoring to control microbial and particulate contamination.

Process Control: During filling, the fill volume is checked periodically, and during capping, the sleeve size and roughness are checked to prevent damage to the rubber stopper from affecting the seal.

Product Inspection: After sealing, the semi-finished product undergoes manual or automated light inspection at a light inspection station to remove defective products and ensure the quality of the final product.

Its role in the production process: Automated filling lines, through high integration and automation, significantly improve the production efficiency and product quality of small-volume aqueous injections. They reduce the risk of contamination from manual operation, ensure the cleanliness of the production environment and the stability of the process, and are an important guarantee for compliance with GMP standards and the realization of large-scale production.