Automatic Ampoule Filling Machine

An Automatic Ampoule Filling Machine is a specialized piece of equipment designed for the precise filling and sealing of glass ampoules, primarily used in the pharmaceutical, biotech, cosmetic, and chemical industries. These machines automate the process of filling liquid or solid pharmaceutical products into ampoules and sealing them to ensure sterility, safety, and compliance with Good Manufacturing Practices (cGMP). Below is a detailed description of their design, functionality, and key features based on current industry standards and available information:

Automatic Ampoule Filling Machines are engineered to handle glass ampoules (open-mouth or closed) with capacities typically ranging from 0.5 ml to 30 ml. They are designed to operate in aseptic conditions to prevent contamination, ensuring the integrity of sensitive products like injectables, analgesics, insulin, veterinary medicines, or agrochemicals. These machines streamline high-speed production while maintaining accuracy, repeatability, and hygiene.

Automatic Ampoule Filling Machine Video

Key Features and Components

1. Construction:

   • Material: Built with high-grade stainless steel (typically SS 316L for contact parts and SS 304 for non-contact parts) to ensure durability, corrosion resistance, and compliance with cGMP standards.

   • Design: Often feature a monobloc or compact design, integrating all operations (pre-gassing, filling, post-gassing, pre-heating, and sealing) on a single platform for efficiency and ease of maintenance.

   • Accessibility: Large openings at the base and tool-less format changes facilitate cleaning, maintenance, and quick changeovers between ampoule sizes.

2. Filling Mechanism:
   • Filling Systems: Utilize advanced filling technologies such as:

     • Peristaltic pumps: For precise, contamination-free filling, ideal for sterile applications.

     • Piston pumps: For accurate volumetric filling, suitable for a wide range of liquid viscosities.

     • Servo-driven systems: Allow programmable fill volumes with high precision.

     • Time-pressure or mass-flow systems: For customized filling needs.

   • Capacity: Can fill 0.5 ml to 25 ml in a single dose, with some models supporting up to 30 ml.

   • Output: Production rates vary from 25 to 300 ampoules per minute, depending on the machine model (e.g., single-head for lab-scale or multi-head—2, 4, 6, or 8—for high-speed production).

3. Sealing Process:

   • Sealing Methods: Ampoules are sealed using thermal methods (gas flame with oxygen and LPG/propane), laser sealing, or vacuum stopper insertion.

   • Pre-heating and Sealing Stations: Pre-warming stations use low-pressure flames to prepare ampoules, while sealing stations use rollers to rotate ampoules for uniform sealing.

   • Gas Flushing: Nitrogen flushing before and after filling prevents oxidation and contamination, preserving product efficacy.

4. Automation and Control:

   • PLC and HMI: Modern machines are equipped with Programmable Logic Controllers (PLC) and Human-Machine Interfaces (HMI) for automated fill volume adjustments, real-time monitoring, and error detection.

   • In-Process Control (IPC): Continuous checks for fill weight and stopper placement ensure quality.

   • Multi-Head Configurations: Machines with 1, 2, 4, 6, or 8 heads increase throughput, with each stroke advancing multiple ampoules for simultaneous filling and sealing.

5. Ampoule Handling:

   • Infeed System: Sterilized ampoules are loaded via a hopper or tray and transferred to a starwheel or transport rack, often in an inclined or slant-travel position to accommodate variations in neck dimensions and thicknesses.

   • Conveyor Systems: Infeed conveyors transport empty ampoules to the filling station, while outfeed conveyors move filled and sealed ampoules for inspection or packaging.

   • Neck Centering: Ensures precise alignment during gas flushing, filling, and sealing to avoid defects.

6. Sterility and Safety:

   • Laminar Air Flow (LAF): Optional inbuilt LAF systems provide a sterile Class 100 environment for filling.

   • Depyrogenation and Sterilization: Integration with sterilization tunnels ensures ampoules are pre-treated (e.g., via dry heat, vacuum, or steam) before filling.

   • Safety Features: Include pressure reducers, safety valves for gas circuits, and stainless steel hoods to channel fumes during sealing.

7. Inspection and Quality Control:

   • Post-filling inspection systems, such as high-voltage leak detection (HVLD), static division (SD), or headspace analysis (HSA), check for container defects and ensure closure integrity.

   • Waste ampoule tips are clipped and ejected into separate containers to maintain cleanliness.

Operational Process

1. Loading: Sterilized ampoules are loaded into an infeed hopper or tray and transferred to a starwheel or rack.

2. Pre-Gassing: Nitrogen is flushed to displace oxygen and prevent oxidation.

3. Filling: Liquid is dispensed into ampoules with high precision using the chosen filling mechanism.

4. Post-Gassing: Additional nitrogen flushing ensures a contamination-free environment.

5. Pre-Heating: Ampoules are warmed with low-pressure flames to prepare for sealing.

6. Sealing: The ampoule neck is heated and sealed using gas flames or other methods, ensuring hermetic closure.

7. Collection: Filled and sealed ampoules are automatically collected on a tray for further inspection or packaging.

Advantages

• High Efficiency: Automates intricate tasks, enabling high output (up to 36,000 ampoules/hour for models like Syntegon’s ALF 5000).

• Precision and Consistency: Ensures accurate fill volumes and secure sealing, critical for pharmaceutical safety.

• Versatility: Handles various ampoule sizes (1 ml to 30 ml) and types (open or closed), with flexibility for liquids, solids, or lyophilized products.

• Reduced Contamination: Aseptic processing and nitrogen flushing minimize contamination risks.

• Ease of Use: Quick changeovers, minimal maintenance, and user-friendly controls reduce downtime.

• Cost-Effectiveness: Automation reduces labor costs and human error, improving production economics.

Applications

• Pharmaceuticals: Filling injectables, analgesics, insulin, and generic drugs.

• Biotech and Veterinary: Processing vaccines, serums, and veterinary medicines.

• Cosmetics and Chemicals: Filling cosmetic ampoules or agro-insecticides.

• Laboratory Use: Smaller-scale machines for R&D or low-volume production.

Types of Ampoule Filling Machine

• Laboratory Ampoule Filling Sealing Machine
• Closed Ampoule Filling Machine
• Single Head Ampoule Filling Machine
• Double Head Ampoule Filling Machine
• Four Head Ampoule Filling Machine
• Six Head Ampoule Filling Machine
• Eight Head Ampoule Filling Machine
• Onion Skin Ampoule Filling Machine

Salient Features of Automatic 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 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 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.