Sterile Ampoule Filling Machine

A Sterile Ampoule Filling Machine is specialized equipment designed for the precise filling and sealing of glass ampoules in a sterile environment, primarily used in pharmaceutical, biotech, cosmetic, and veterinary industries. These machines ensure contamination-free processing of liquid or powder formulations, meeting stringent regulatory standards like cGMP and US FDA requirements.

Sterile Ampoule Filling Machine Video

Design and Build

• Construction: Built with stainless steel (typically SS 316L for contact parts and SS 304 for the framework) for durability, corrosion resistance, and compliance with cleanroom standards. The design often includes a compact, monoblock structure or modular setup for easy integration with other equipment like washing machines and sterilization tunnels.

• Sterile Environment: Operates in a Class 100 cleanroom or under laminar airflow (LAF) systems, with options for open/closed Restricted Access Barrier Systems (RABS) or isolators to maintain sterility.

• Hopper and Transport: Features a slant hopper or in-feed conveyor to load pre-sterilized ampoules, which are then transported via star wheels, eccentric racks, or wire mesh conveyors for precise handling. The slant travel design accommodates variations in ampoule neck dimensions and thicknesses.

• Control Systems: Equipped with Programmable Logic Controllers (PLC) and Human-Machine Interfaces (HMI) for real-time monitoring, error detection, and automated fill volume adjustments. Some models include SCADA for batch and process data tracking.

Filling and Sealing Process

The process is fully automated to minimize human intervention and contamination risks:

1. Ampoule Loading: Pre-sterilized ampoules (open type B/C or closed type D) are loaded into a slant hopper or fed via a conveyor from a sterilization tunnel.

2. Opening (for Closed Ampoules): For type D ampoules, a dedicated station uses burners to open the sealed mouth before filling.

3. Pre-Gassing: Nitrogen flushing removes atmospheric air to prevent chemical reactions or contamination.

4. Filling: Liquid or powder is dispensed using high-precision filling systems such as:

   • Peristaltic Pumps: Ideal for aseptic filling, minimizing particulate contamination.

   • Volumetric Piston Pumps: Suitable for precise dosing of 0.5ml to 30ml, with ±0.5-1% accuracy.

   • Time-Pressure or Mass-Flow Systems: Used for specific formulations to ensure consistency.

   • Diving nozzles prevent foaming by dispensing liquid against the ampoule’s inner walls.

5. Post-Gassing: Additional nitrogen flushing after filling to maintain sterility.

6. Pre-Heating: A low-pressure flame warms the ampoule neck to prepare for sealing, ensuring uniform heating and preventing thermal shock.

7. Sealing: The ampoule neck is melted using oxygen-LPG (propane) flames and sealed via mechanical draw-off or roller rotation for a perfect, airtight closure. Waste tips are clipped and collected separately.

8. Collection: Filled and sealed ampoules are automatically transferred to a collection tray or conveyor for inspection, labeling, or packaging, often in an upright position to avoid spillage.

Key Features

• High Output: Capable of processing 15 to 36,000 ampoules per hour, depending on the model (e.g., Syntegon ALF 4000: up to 30,000/hour; ALF 5000: up to 36,000/hour).

• Versatility: Handles ampoule sizes from 1ml to 30ml, with quick, tool-less changeover for different formats. Some models support both ampoules and vials (combi machines).

• Sterility Assurance: Equipped with laminar flow systems, HEPA filters, and CIP/SIP (Clean-in-Place/Sterilize-in-Place) capabilities to maintain a sterile environment.

• Precision and Accuracy: In-process control (IPC) with 0-100% check-weighing ensures consistent fill volumes, with feedback loops to adjust dosing.

• Anti-Foaming Mechanisms: Diving nozzles, ultrasonic, or vacuum-assisted filling reduce foaming and bubbling for accurate dosing.

• Safety and Compliance: Features safety cabinets, pressure reducers, and flame regulation systems. Meets GMP and FDA standards, with options for PUPSIT (Pre-Use-Post-Sterilization Integrity Test).

• Ease of Maintenance: Large openings, removable parts, and stainless hoods facilitate cleaning and autoclaving.

Applications

• Pharmaceuticals: Filling sterile injectables, vaccines, insulin, IV fluids, antibiotics, and biologics.

• Biotech: Processing cell and gene therapies or other sensitive formulations.

• Cosmetics and Veterinary: Filling cosmetic serums, agro-insecticides, or veterinary medicines.

• Chemicals: Handling sensitive chemical solutions requiring protection from air and contaminants.

Advantages

• Sterility and Safety: Ensures contamination-free filling and sealing, critical for patient safety.

• High Efficiency: High-speed models (up to 500 ampoules/min) meet large-scale production demands.

• Flexibility: Adjustable for various ampoule sizes and product types (liquids, powders, or pellets).v

• Minimal Operator Intervention: Automated processes reduce human error and contamination risks.

• Durability: Robust design with stainless steel ensures long-term reliability.

Challenges and Solutions

• Contamination Risk: Addressed by integrating LAF, RABS, or isolators and regular cleaning protocols.

• Foaming/Bubbling: Mitigated with anti-foaming agents or advanced filling technologies like ultrasonic mechanisms.

• Calibration Complexity: Simplified with PLC-based controls and comprehensive manufacturer guidelines.

• Ampoule Variability: Interchangeable parts and adjustable mechanisms accommodate different sizes and types.

Sterile Ampoule Filling Machines are critical for high-precision, contamination-free processing of pharmaceuticals and other sensitive products. Their robust design, advanced automation, and compliance with stringent standards ensure reliable, high-volume production while maintaining product integrity.

Types of Ampoule Filling Machines

• Small Ampoule Filling Machine
• Ampoule Filling and Sealing Machine
• Onion Skin Ampoule Filling Machine
• Servo Driven Ampoule Filling Machine
• Peristaltic Pump type Ampoule Filling Machine
• Closed Ampoule Filling Machine
• Single Head Ampoule Filling Machine
• Two Head Ampoule Filling Machine
• Four Head Ampoule Filling Machine
• Six Head Ampoule Filling Machine
• Eight Head Ampoule Filling Machine

Salient Features of Sterile Ampoule Filling Machine

• Compact model as per cGMP standard.

• Higher production output up to 12000 Ampoules per hour.

• All contact parts made from High Quality Stainless Steel 316L & Non-contact parts made from Stainless Steel 304.

• Minimum change over parts from 1ml to 10ml ampoule size.

• “No Ampoule – No Filling” system.

• Ampoule neck centering during gas flushing and filling operations.

• Possibility of nitrogen gas flushing before, during and after filling.

• Full accessibility allows easy maintenance.

• Machine equipped with pre-warming station.

• Flow Meters for regulating flames easily.

• Minimum change over time, little maintenance, easy cleaning.

Process Operation of Sterile Ampoule Filling Machine

Empty washed & sterilized ampoules loaded onto infeed hopper of the machine. From where it has been received to receiving rack through starwheel/cassette. The moving rack which moves horizontally collect one/two/four/eight ampoules from the receiving rack and transfer the ampoule to the machine in left to right in an inclined position. During ampoule movement Pre-gassing, Filling, Post Gassing, Pre-heating & Sealing Station perform filling and sealing operations. At the end duly filled and sealed ampoules get collected automatically onto collection tray of the machine. For detailed working process please explore automatic ampoule filler video in top right section of this page.

Technical Specification of Sterile Ampoule Filling Machine

* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.