Glass ampoules are among the most demanding pharmaceutical containers to package. The glass is fragile, the products are injectables, and regulators expect full traceability. That is why a well-designed ampoule packaging line has to do more than move bottles from one station to another: it must protect every ampoule, reject every incomplete pack, and keep production flowing without bottlenecks.
In this complete guide, we explain how a modern ampoule blister packaging machine works step by step, and why the PBL-400S ampoule blister packaging line is a trusted choice for pharmaceutical manufacturers who need GMP-compliant blister packing and cartoning in one integrated system.
An ampoule blister packaging line — also described as an ampoule blister packing and cartoning line — is a fully automated system that takes rolls of PVC film at one end and delivers finished, batch-coded cartons at the other. Between the two ends, the line:
- Forms rigid PVC film into thermoformed trays (blisters)
- Loads glass ampoules into each formed cavity with robotic pick-and-place
- Compacts and detects every tray, rejecting any missing or damaged unit
- Heat-seals the trays with PVC/PTP lidding film
- Punches the sealed web into individual blister cards and recovers scrap automatically
- Folds the package leaflet and inserts it together with the blister into an opened carton
- Codes batch information, closes and seals the carton
Because every station is synchronized by a single PLC and servo system, the whole pharmaceutical packaging line runs as one machine rather than a chain of separate devices. For manufacturers producing ampoules, vials, oral liquids or pre-filled syringes, this integration reduces labor, protects fragile glass and shortens changeover time.
The PBL-400S follows a proven process sequence that keeps product safety and line efficiency in balance:
1. PVC tray forming.** The PVC film is preheated between upper and lower heating plates (temperature uniformity ±5 °C) and then positive-pressure formed into trays in the forming mold. Large-roll PVC (up to 600 mm in diameter) reduces material-change frequency, and the film can be changed without stopping the line.
2. Ampoule feeding and robotic loading.** Ampoules arrive from the labeling machine via an electromagnetic vibratory feeder and a drum-type separating mechanism — a patented design. A four-axis servo robot then picks ampoules with vacuum grippers and places them into the formed cavities, achieving fast, stable and accurate loading.
3. Compaction.** Any ampoule that is not fully seated is pressed into the cavity to ensure consistent tray geometry before sealing.
4. Inline detection.** Photoelectric and mechanical sensors check each tray. Trays with missing ampoules are automatically rejected (100% rejection of defective units), so no incomplete blister reaches the carton.
5. Heat sealing and film traction.** A layer of lidding film (PVC/PTP) is applied over the loaded trays and heat-sealed. The traction unit uses servo control to adjust stroke length precisely, running smoothly without shock or jamming.
6. Punching and scrap recovery.** The sealed web is punched by eccentric-driven punch and die sets into individual blister cards with clean, burr-free edges. Waste film is automatically collected and wound into rolls.
7. Robotic transfer.** A transfer robot picks the finished blister cards from the punching conveyor and places them accurately onto the cartoning infeed conveyor.
8. Cartoning with leaflet.** The cartoning unit unfolds a carton, folds the leaflet (1–4 folds as required), inserts the leaflet and the blister card together, prints a 3–4 line steel batch code (±1.5 mm accuracy), then closes, tucks and seals the carton. Empty cartons and packs without leaflets are detected and rejected.
Standard blister machines built for tablets cannot handle glass ampoules safely. Ampoule-specific lines like the PBL-400S are engineered around gentle handling and strict quality control:
- **Low breakage rates.** Breakage is kept below 0.01‰ for bottle feeding and leaflet folding, and below 0.02‰ for cartoning.
- **Product-first logic.** The line does not pick a leaflet, suction a carton or push a product when no ampoule is present, preventing empty packs and material waste.
- **Contamination control.** Lubricants are isolated from drug-contact areas, and the packaging area is separated from the drive area to meet GMP cleanliness expectations.
- **Full traceability.** Every incomplete or defective pack is removed automatically, so only complete, coded cartons leave the line.
| Parameter | Specification |
| Product | Glass ampoules (2 ml × 1 pc, 5 ml × 2 pcs, configurable) |
| Line speed | 150–300 cartons/min |
| Punching frequency | 16–40 strokes/min |
| Max. forming area | 220 × 400 mm |
| Forming stroke | 50–220 mm (servo-controlled) |
| Blister film | Rigid PVC, 0.15–0.5 mm × 400 mm, roll core Ø 75 mm |
| PVC preheating power | 2 × 4.5 kW |
| Mold cooling | 13–15 °C water, 60 L/h |
| Carton size (L×W×H) | (65–210) × (33–85) × (15–75) mm |
| Leaflet size (L×W) | (100–190) × (100–260) mm, 1–4 folds |
| Cartoning capacity (max.) | up to 400 cartons/min |
| Power supply | 380 V, 50 Hz |
| Total power | 30 kW |
| Air consumption (max.) | 580 L/min at 0.6–0.8 MPa |
| Dimensions (L×W×H) | 11700 × 2700 × 1750 mm |
| Weight | ≈ 10,000 kg |
Pharmaceutical plants cannot compromise on compliance. The PBL-400S is designed to meet cGMP and GMP (2010) requirements, is manufactured under ISO 9001 quality management, and carries CE certification. Supporting features include:
- Stainless steel base, frame, covers and panels with a matte finish
- Sealed control cabinets and a touchscreen HMI with operator / maintenance / manager access levels
- Overload protection on the main drive, conveyor, leaflet folder and pushers, with automatic stop and fault display
- Automatic stop when film, leaflet, carton or sealing material runs out
- Detection and rejection of missing leaflet and empty cartons
- **Integrated forming–loading–cartoning on one line.** No separate blister machine and cartoner to synchronize; one Siemens PLC coordinates all stations.
- **Over 90% imported electrical components.** Siemens PLC and servo drives, Schneider breakers and buttons, plus internationally recognized sensors and pneumatic components, ensure reliability and easy global service.
- **Only 1–2 operators** are needed to run the entire line.
- **Fast format changeover.** Machine sizes and tooling can be customized to customer requirements, and the servo-driven stroke is adjusted from the touchscreen.
- **Automatic waste recovery** for punching scrap, plus material-level alarms for film, leaflets and cartons.
When comparing ampoule packaging machine suppliers, look beyond the headline speed:
1. **Check rejection logic.** Can the line truly reject 100% of missing-product and empty-carton events? Ask for the sensor map and rejection records.
2. **Verify compliance documents.** ISO 9001, CE marking and GMP-relevant documentation (DQ/IQ/OQ support) are essential for your own validation.
3. **Evaluate glass-handling design.** Breakage rate targets (ideally below 0.01‰) reveal how gently the line really handles ampoules.
4. **Confirm component brands.** Lines built with Siemens, Schneider and other recognized brands are easier to maintain worldwide.
5. **Ask about customization.** Mold design, carton sizes, leaflet folding and batch coding should be configurable to your product family.