Sterile Ampoule Filling Machine

Q: What industries use the Sterile Ampoule Filling Machine and what are its main benefits?

This machine is widely used in the pharmaceutical, biotechnology, veterinary, cosmetic, and chemical industries for sterile injectable production. Main benefits include: Superior sterility assurance through nitrogen flushing and immediate sealing High production output (up to 12,000 ampoules/hour) with consistent ±1% accuracy Minimal product wastage and reduced human intervention Quick changeover with minimum parts for different ampoule sizes Easy cleaning, low maintenance, and compact footprint suitable for cleanrooms Full cGMP compliance with robust SS 316L construction It is perfect for both medium and large-scale sterile manufacturing while ensuring product integrity and regulatory compliance.

Description

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. Their robust design, advanced automation, and compliance with stringent standards ensure reliable, high-volume production while maintaining product integrity.

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.

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.

Salient Features of Sterile Ampoule Filling Machine

Compact model as per cGMP standard.
Higher production output up to 12000 Ampoules per hour.
“No Ampoule – No Filling” system.
Machine equipped with pre-warming station.
Full accessibility allows easy maintenance.
Flow Meters for regulating flames easily.

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.
Ampoule neck centering during gas flushing and filling operations.
Possibility of nitrogen gas flushing before, during and after filling.
Minimum change over time, little maintenance, easy cleaning.

Working Principle 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.

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

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.

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

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

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.

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

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

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.

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.

Technical Specification of Sterile Ampoule Filling Machine

Model	AFS-1	AFS-2	AFS-4	AFS-8
No. of Head	Single	Two	Four	Eight
Syringes	One	Double	Four	Eight
Ampoule Sizes	1 ml to 30 ml	1 ml to 30 ml	1 ml to 20 ml	1 ml to 20 ml
Filling Speed	Up to 25 ampoules/minute	Up to 50 ampoules/minute	Up to 100 ampoules/minute	Up to 200 ampoules/minute
Filling Precision	± 1%	± 1%	± 1%	± 1%
Filling Pump	Piston Pump	Piston Pump	Piston Pump	Piston Pump
Burner Gas	LPG & Oxygen (O₂)	LPG & Oxygen (O₂)	LPG & Oxygen (O₂)	LPG & Oxygen (O₂)
Nitrogen Arrangement	Before & After Filling	Before & After Filling	Before & After Filling	Before & After Filling
Number of Fill Nozzles	One	Two	Four	Eight
Number of Nitrogen Nozzles	Two	Four	Eight	Sixteen
Number of Sealing Burners	Two	Four	Eight	Sixteen
Power Required	0.5 H.P.	1 H.P.	1 H.P.	2 H.P.
Power Voltage	230 Volts, Single Phase, 50 Hertz, 4 Wire System	230 Volts, Single Phase, 50 Hertz, 4 Wire System	230 Volts, Single Phase, 50 Hertz, 4 Wire System	230 Volts, Single Phase, 50 Hertz, 4 Wire System
Contact Parts	Made from Stainless Steel 316L	Made from Stainless Steel 316L	Made from Stainless Steel 316L	Made from Stainless Steel 316L
Overall Dimension	915mm (L) x 610mm (W) x 965mm (H) approx.	915mm (L) x 760mm (W) x 965mm (H) approx.	1200mm (L) x 1070mm (W) x 965mm (H) approx.	2200mm (L) x 1400mm (W) x 1100mm (H) approx.

* 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.

Types of Ampoule Filling Machine

Automatic Ampoule Filling Sealing Machine

Laboratory Ampoule Filling Sealing Machine

Closed Ampoule Filling Machine

Open Mouth Ampoule Filling Machine

Onion Skin 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

Applications of Ampoule Filling Machine

Advantages of Sterile Ampoule Filling Machine

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).

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

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

Key Features of Sterile Ampoule Filling Machine

High Output: Capable of processing 15 to 36,000 ampoules per hour, depending on the model

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.

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

FAQ for Sterile Ampoule Filling Machine

What is a Sterile Ampoule Filling Machine?

A Sterile Ampoule Filling Machine is a fully automatic pharmaceutical equipment designed for high-precision filling and flame sealing of sterile injectable liquids into glass ampoules under controlled sterile conditions. It performs multiple operations — nitrogen pre-gassing, volumetric filling, post-gassing, neck pre-heating, and sealing — in a compact cGMP-compliant monobloc design. The machine ensures contamination-free processing with minimal human intervention, making it ideal for producing vaccines, antibiotics, biotech products, and other sterile injectables.

What is the production capacity and ampoule size range of the Sterile Ampoule Filling Machine?

The machine is available in four models with varying outputs:

AFS-1 (Single Head): Up to 25 ampoules/min (1,500/hour)
AFS-2 (Two Heads): Up to 50 ampoules/min (3,000/hour)
AFS-4 (Four Heads): Up to 100 ampoules/min (6,000/hour)
AFS-8 (Eight Heads): Up to 200 ampoules/min (12,000/hour)

It supports ampoule sizes from 1 ml to 30 ml (model dependent) with a filling accuracy of ±1% using volumetric piston pumps. Nitrogen flushing is provided before, during, and after filling for enhanced sterility.

What features make the Sterile Ampoule Filling Machine suitable for sterile production?

Key sterility and performance features include:

Nitrogen gas flushing with ampoule neck centering to prevent oxidation
“No Ampoule – No Filling” and “No Ampoule – No Seal” safety systems
Pre-warming station for perfect, uniform flame sealing (LPG + Oxygen)
All product contact parts made of SS 316L and non-contact parts of SS 304
Flow meters for precise flame regulation and variable speed control
Compact cGMP design with easy accessibility for cleaning and maintenance

These features ensure high sterility, low wastage, and compliance with international regulatory standards.

How does the Sterile Ampoule Filling Machine work?

Washed and sterilized ampoules are loaded into the infeed hopper. They are automatically transferred via a starwheel to a moving rack in an inclined (slant) position. As the ampoules move forward, the machine sequentially performs:

Pre-gassing with nitrogen
Precise volumetric liquid filling
Post-gassing with nitrogen
Neck pre-heating
High-speed rotation and flame sealing

Filled and sealed ampoules are collected upright in a delivery tray. The slant design minimizes glass breakage and contamination risks while maintaining a sterile environment throughout the process.

What industries use the Sterile Ampoule Filling Machine and what are its main benefits?

This machine is widely used in the pharmaceutical, biotechnology, veterinary, cosmetic, and chemical industries for sterile injectable production.

Main benefits include:

Superior sterility assurance through nitrogen flushing and immediate sealing
High production output (up to 12,000 ampoules/hour) with consistent ±1% accuracy
Minimal product wastage and reduced human intervention
Quick changeover with minimum parts for different ampoule sizes
Easy cleaning, low maintenance, and compact footprint suitable for cleanrooms
Full cGMP compliance with robust SS 316L construction

It is perfect for both medium and large-scale sterile manufacturing while ensuring product integrity and regulatory compliance.

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