Stoppering Station for Aseptic Filling Lines

Product Specifications

Technical details and manufacturing context for Stoppering Station

Definition

The Stoppering Station is a critical component of Pharmaceutical Aseptic Filling and Sealing Systems, responsible for the automated, precise placement and initial seating of elastomeric stoppers onto filled vials. It operates within an ISO Class 5 (or better) environment to maintain sterility, ensuring the closure integrity required for parenteral drug products. Its function is essential for creating a hermetic seal that protects the drug from contamination and maintains stability throughout its shelf life. The station receives vials from the filling station on a conveyor. A stopper bowl or feeder orients and supplies sterile stoppers. A pick-and-place mechanism (often using grippers or vacuum heads) retrieves a single stopper, transports it to the vial neck, and applies controlled downward force to insert the stopper partially into the vial opening (typically creating a 'pre-stoppered' or 'half-stoppered' state). This process is synchronized with the conveyor movement and is often monitored by sensors for presence and correct placement. The station is constructed with stainless steel (316L) and FDA-compliant plastics, and it handles stoppers made of pharmaceutical-grade elastomers. Key parameters include a production capacity of 300–600 vials/min (higher speeds may require dual-station configuration), a stopper diameter range of 13–32 mm (outside range requires change parts), and a stopper insertion depth accuracy of ±0.1 mm, critical for seal integrity. Operating pressure is 0.4–0.6 MPa (clean dry air required, per ISO 8573-1), electrical supply is 220/380 V AC (50/60 Hz, 3-phase, per IEC 60038), and power consumption is 1.5–3.0 kW. Operating temperature should be 10–40°C (below 10°C may affect stopper flexibility), relative humidity 30–70% RH (higher humidity may cause sticking), and ingress protection IP54–IP65 (IP65 for washdown areas, per IEC 60529). Machine weight is 800–1200 kg, footprint (L×W×H) is 2000×1200×1800 mm (allow 500 mm clearance for maintenance), and stopper material compatibility includes EPDM and silicone (other elastomers on request, per USP <381>). Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The station receives vials from the filling station on a conveyor. A stopper bowl or feeder orients and supplies sterile stoppers. A pick-and-place mechanism (often using grippers or vacuum heads) retrieves a single stopper, transports it to the vial neck, and applies controlled downward force to insert the stopper partially into the vial opening (typically creating a 'pre-stoppered' or 'half-stoppered' state). This process is synchronized with the conveyor movement and is often monitored by sensors for presence and correct placement.

Common Materials

Stainless Steel (316L), Pharmaceutical-grade elastomers (for stoppers), FDA-compliant plastics

Technical Parameters

Parameter	Typical range	Notes & selection driver
Production Capacity	300–600 vials/min	Higher speeds may require dual-station configuration.
Stopper Diameter Range	13–32 mm	Outside range requires change parts.
Stopper Insertion Depth Accuracy	±0.1 mm	Critical for seal integrity.
Operating Pressure	0.4–0.6 MPa	Clean dry air required.ISO 8573-1
Electrical Supply	220/380 V AC	50/60 Hz, 3-phase.IEC 60038
Power Consumption	1.5–3.0 kW	Depends on servo drives and heating.
Operating Temperature	10–40 °C	Below 10°C may affect stopper flexibility.
Relative Humidity	30–70 % RH	Higher humidity may cause sticking.
Ingress Protection	IP54–IP65	IP65 for washdown areas.IEC 60529
Machine Weight	800–1200 kg	Includes frame and guarding.
Footprint (L×W×H)	2000×1200×1800 mm	Allow 500 mm clearance for maintenance.
Stopper Material Compatibility	EPDM, Silikon	Other elastomers on request.USP <381>

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Stopper Bowl Feeder
Orients and supplies a bulk quantity of sterile stoppers to the picking mechanism.

Material: Stainless Steel, FDA-compliant coatings
Pick-and-Place Head
Precisely retrieves a single stopper from the feeder and places it onto the vial.

Material: Stainless Steel, Ceramic, Specialty Plastics
Insertion Plunger Part
Applies the controlled vertical force to insert the stopper into the vial neck.

Material: Stainless Steel
Vial Positioning Nest
Holds and stabilizes the vial during the stoppering operation.

Material: Stainless Steel or Pharmaceutical-grade Plastic
Placement Sensors
Check that a stopper is present and correctly seated before the vial moves on.

Manufacturers of Stoppering Station

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Frequently Asked Questions

What is the typical production capacity of a stoppering station?

The production capacity is typically 300–600 vials per minute. Higher speeds may require a dual-station configuration. Always confirm the exact capacity for your specific model with the manufacturer.

What stopper diameters can the station handle?

The standard stopper diameter range is 13–32 mm. If your stoppers are outside this range, change parts may be required. Verify compatibility with the supplier.

What environmental conditions are required for operation?

The station operates in an ISO Class 5 (or better) environment. Operating temperature should be 10–40°C, relative humidity 30–70% RH, and clean dry air at 0.4–0.6 MPa is required. Below 10°C may affect stopper flexibility, and higher humidity may cause sticking.

What materials are used in the construction?

The station is typically constructed with stainless steel (316L) and FDA-compliant plastics. Stoppers are made of pharmaceutical-grade elastomers such as EPDM or silicone, per USP <381>. Confirm material compatibility with your specific application.

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pressure:	Atmospheric to 0.5 bar overpressure for sterile air purge
other spec:	Vial throughput: 100-600 vials/min, Stopper insertion force: 5-50 N, Sterility class: ISO 5 (Class 100) or better
temperature:	Ambient to 25°C (controlled sterile environment)

Stoppering Station

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards