Ampoule Filling Machine

Q: What is an Ampoule Filling Machine?

An Ampoule Filling Machine is a high-precision, automatic monoblock system designed to fill and seal glass ampoules with sterile liquids (and in some variants, powders). It performs nitrogen gas flushing (pre and post-filling), volumetric piston filling, neck pre-heating, and hermetic flame sealing using LPG + Oxygen. The compact cGMP-compliant design ensures sterility, prevents oxidation, and delivers consistent, leak-proof sealed ampoules for injectable products. It is available in single to eight-head configurations for different production scales.

Q: What are the main applications of the Ampoule Filling Machine?

This machine is widely used in the pharmaceutical industry for filling and sealing sterile liquid injectables such as vaccines, antibiotics, analgesics, and other parenteral drugs. It is also suitable for: Biotechnology products Veterinary medicines Cosmetic industry (injectable serums) Chemical industry It supports both open-mouth and closed-mouth ampoules and integrates easily with washing, sterilization tunnels, and downstream packaging lines.

Q: What is the output capacity and ampoule size range of the Ampoule Filling Machine?

The machine is available in multiple head models: AFS-1 (Single Head) : Up to 25 ampoules/min AFS-2 (Two Heads) : Up to 50 ampoules/min AFS-4 (Four Heads) : Up to 100 ampoules/min AFS-8 (Eight Heads) : Up to 200 ampoules/min (approx. 12,000 ampoules/hour) Filling range : 0.5 ml to 25 ml (single dosing) Ampoule sizes : 1 ml to 30 ml (AFS-1 & AFS-2), 1 ml to 20 ml (AFS-4 & AFS-8) It offers ±1% filling accuracy (up to ±0.5% in optimized models) with quick changeover and minimum change parts.

Description

Ampoule Filling Machine is a specialized piece of equipment used primarily in the pharmaceutical, biotech, cosmetic, and chemical industries to fill and seal glass ampoules with liquids, powders, or other substances. These machines are designed to ensure precise, sterile, and efficient filling and sealing of ampoules, which are small, hermetically sealed glass containers used to store and protect sensitive substances from air, contaminants, and microorganisms. This machine is ideal for pharmaceutical manufacturers who require sterile, oxidation-free, and leak-proof ampoules for injectable products. It follows the slant traveling principle, where ampoules move in an inclined position through various stations, ensuring smooth handling and consistent results. Below is a detailed description of an Ampoule Filling Machine, its components, working principle, features, and applications, based on industry standards and available information.

Infeed System:
- A hopper or feeding turntable where empty, pre-sterilized ampoules are loaded.
- A wire mesh conveyor belt or starwheel transports ampoules to the filling station, often connected to a sterilizing tunnel for continuous operation.
- The system ensures smooth and precise movement of ampoules, accommodating various sizes and shapes.

Filling Station:
- Equipped with high-precision dosing systems, such as:
  - Piston pumps (volumetric, servo-driven, or conventional) for accurate liquid filling.
  - Peristaltic pumps for gentle handling of sensitive liquids, with easy adjustment via HMI (Human-Machine Interface).
  - Mass-flow or time-pressure systems for customized filling.
- Filling needles or nozzles discharge precise volumes (0.5 ml to 25 ml in single dosing).
- Features like bottom-up filling or diving nozzles prevent foaming and ensure accuracy (±0.5% fill accuracy in some models).

Gas Flushing System:
- Nitrogen purging stations flush ampoules with inert gas (e.g., nitrogen) before and/or after filling to remove atmospheric air and prevent chemical reactions or contamination.
- This is critical for oxygen-sensitive or air-sensitive products like pharmaceuticals or radiopharmaceuticals.

Sealing Station:
- Pre-warming and sealing stations use combustible gases (oxygen and LPG/propane) to heat and melt the thin glass neck of the ampoule for hermetic sealing.
- Specially designed rollers rotate ampoules during sealing to ensure uniform closure.
- Safety valves, pressure reducers, and flow meters regulate flame intensity for precise sealing.
- A stainless steel hood channels out fumes during heating, maintaining a clean environment.

Collection and Rejection System:
- Filled and sealed ampoules are automatically collected in trays.
- Defective ampoules (e.g., improperly filled or sealed) are rejected and ejected into a separate container.
- Waste ampoule tips are clipped and discarded to avoid contamination.

Control Systems:
- PLC (Programmable Logic Controller) and HMI systems for real-time monitoring, parameter adjustment, and error detection.
- In-process control (IPC) systems for 0–100% check-weighing to ensure accurate dosing and adjust pump settings automatically.

Frame and Materials:
- Constructed with stainless steel (SS 316L for contact parts, SS 304 for non-contact parts) to meet cGMP standards.
- Compact, monoblock design for space efficiency and easy maintenance.
- Large openings and accessible parts for quick cleaning and minimal downtime.

Salient Features of 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 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. The operation of an ampoule filling machine follows a systematic, automated process to ensure sterility, precision, and efficiency:

Sterilization and Loading:

Empty ampoules are washed, sterilized (often in a depyrogenation tunnel), and loaded into the machine’s hopper or infeed system.
A starwheel or conveyor belt aligns and transports ampoules (1, 2, 4, 6, or 8 at a time, depending on the machine’s head configuration) to the processing stations.

Pre-Gassing (Optional):

Ampoules are flushed with nitrogen to displace atmospheric air, reducing the risk of oxidation or contamination.

Filling:

The filling station dispenses a precise volume of liquid or powder into each ampoule using piston or peristaltic pumps.
Neck centering ensures accurate filling, and diving nozzles minimize foaming.
In-process control (IPC) systems may weigh ampoules before and after filling to verify accuracy.

Post-Gassing (Optional):

Additional nitrogen flushing after filling to further protect the contents.

Pre-Warming and Sealing:

Ampoules move to a pre-warming station where a low-pressure flame warms the glass neck.
At the sealing station, a high-temperature flame (using oxygen and LPG) melts the thin glass top to create a hermetic seal.
Rollers rotate the ampoules during sealing for uniform closure, and waste glass tips are clipped and ejected.

Collection:
- Sealed ampoules are collected on a tray, while defective units are rejected.
- The process is continuous, with minimal manual intervention, ensuring high throughput and sterility.

Technical Specification of 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 Ampoule Filling Machine

Sterility and Protection: Ampoules protect contents from environmental dust, microorganisms, and air, ensuring product purity.

High Efficiency: Automated systems produce thousands of ampoules per hour, meeting high demand.

Precision: Accurate dosing eliminates wastage and ensures consistent drug delivery.

Ease of Maintenance: Accessible parts and CIP/SIP systems simplify cleaning and upkeep.

Regulatory Compliance: Designed to meet FDA, CE, ISO, and cGMP standards for pharmaceutical production.

Versatility: Suitable for a wide range of ampoule sizes, product types, and industries.

Long-Term Investment: Robust construction and efficient cooling systems extend machine lifespan.

Key Features of Ampoule Filling Machine

High Precision and Accuracy: Fill accuracy of ±0.5% ensures no over- or under-dosing, critical for pharmaceuticals.

Versatility: Handles ampoule sizes from 1 ml to 30 ml and various product types (liquids, powders, pellets).

High Output: Models range from 10–250 ampoules/min.

Sterility: Operates in sterile class 100 environments with optional LAF or isolator systems to prevent contamination.

Automation: PLC and HMI systems allow easy operation, real-time monitoring, and error correction.

Durability: Stainless steel construction ensures longevity and compliance with cGMP standards.

Quick Changeover: Minimal downtime for format changes, with tool-less adjustments in some models.

Safety: Equipped with safety valves, pressure reducers, and cooling systems to prevent overheating and ensure operator safety.

Flexibility: Can process open-mouth and closed-mouth ampoules, with some models handling vials as well.

Nitrogen Flushing: Ensures product stability by replacing air with inert gas.

Integration: Easily integrates with upstream (washing, sterilization) and downstream (inspection, labeling) equipment.

FAQ for Ampoule Filling Machine

What is an Ampoule Filling Machine?

An Ampoule Filling Machine is a high-precision, automatic monoblock system designed to fill and seal glass ampoules with sterile liquids (and in some variants, powders). It performs nitrogen gas flushing (pre and post-filling), volumetric piston filling, neck pre-heating, and hermetic flame sealing using LPG + Oxygen. The compact cGMP-compliant design ensures sterility, prevents oxidation, and delivers consistent, leak-proof sealed ampoules for injectable products. It is available in single to eight-head configurations for different production scales.

What are the main applications of the Ampoule Filling Machine?

This machine is widely used in the pharmaceutical industry for filling and sealing sterile liquid injectables such as vaccines, antibiotics, analgesics, and other parenteral drugs. It is also suitable for:

Biotechnology products
Veterinary medicines
Cosmetic industry (injectable serums)
Chemical industry

It supports both open-mouth and closed-mouth ampoules and integrates easily with washing, sterilization tunnels, and downstream packaging lines.

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

The machine is available in multiple head models:

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

Filling range: 0.5 ml to 25 ml (single dosing) Ampoule sizes: 1 ml to 30 ml (AFS-1 & AFS-2), 1 ml to 20 ml (AFS-4 & AFS-8) It offers ±1% filling accuracy (up to ±0.5% in optimized models) with quick changeover and minimum change parts.

What are the key features of the Ampoule Filling Machine?

Volumetric piston pumps with ampoule neck centering during filling and gas flushing
Nitrogen purging before, during, and after filling to maintain product stability
Pre-warming station + LPG + Oxygen flame sealing with rotating rollers for uniform hermetic seals
“No Ampoule – No Filling” and “No Ampoule – No Seal” safety systems
All contact parts in AISI 316L Stainless Steel and non-contact parts in SS 304
Pre-warming station, flow meters for flame regulation, and easy maintenance access
Compact cGMP design with low changeover time, optional PLC + HMI, and compatibility with Class 100 laminar airflow or isolators

How does the Ampoule Filling Machine ensure product safety and regulatory compliance?

The machine is built as a complete cGMP model with AISI 316L Stainless Steel contact parts. Nitrogen flushing removes oxygen, while immediate precise flame sealing creates a perfect hermetic closure, minimizing contamination and oxidation risks. Safety features include “No Ampoule – No Fill/Seal” logic, gas safety valves, pressure reducers, and tip clipping for waste ampoules. It supports sterile Class 100 environments and comes with full documentation for easy FDA, CE, and cGMP compliance.

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