Sterile Liquid Filling Machine

A sterile liquid filling machine is specialized equipment designed to fill containers such as vials, bottles, syringes, or cartridges with liquid products under strict aseptic conditions to prevent contamination, primarily used in the pharmaceutical, biotechnology, and cosmetics industries. These machines ensure precision, hygiene, and compliance with stringent regulatory standards like cGMP and FDA requirements.

Sterile Liquid Filling Machine Video

Key Features:

• Aseptic Design: Operates in sterile environments, often under laminar flow protection or within isolators/RABS to maintain sterility and minimize contamination risks.

• Material and Construction: Typically made with stainless steel 316L for contact parts and stainless steel 304 for frameworks, ensuring durability, corrosion resistance, and ease of cleaning. Non-toxic synthetic rubber tubing is used to avoid contamination.

• Filling Mechanisms: Utilizes precise dosing systems such as piston pumps, peristaltic pumps, or rolling diaphragm pumps for accurate filling of liquids ranging from low to high viscosity. Filling accuracy is typically ±0.5% to ±1%.

• Volume Range: Can handle a wide range of fill volumes, typically from 2ml to 250ml for vials, with some machines capable of filling up to 1000ml.

• Automation Levels: Available in manual, semi-automatic, and fully automatic configurations:

  • Manual: Suitable for small-scale or lab use, operated by hand with no automation.

  • Semi-Automatic: Combines manual container loading with automated filling for small-to-medium batches.

  • Fully Automatic: Features conveyor systems, inline filling, and stoppering/capping for high-speed production.

• Sterilization and Cleaning: Equipped with Cleaning-in-Place (CIP) or Sterilization-in-Place (SIP) systems to maintain hygiene between batches. Some use single-use assemblies to eliminate cross-contamination risks.

• Containment Systems: Incorporates isolators, LAF, or RABS for operator and product safety, especially for potent or toxic substances.

• High-Speed Capability: Advanced models like monobloc systems integrate filling, stoppering, capping, and labeling in one unit, ideal for large-scale production with outputs up to 15,000 bottles per hour.

• Checkweighing: Some machines include load cells to verify fill accuracy by measuring tare and gross weights, ensuring compliance with strict standards.

Working Principle:

1. Container Feeding: Containers are fed via a conveyor belt or turntable to the filling station.

2. Positioning: Containers are aligned under filling nozzles for precise dispensing.

3. Filling: Liquid is pumped from a reservoir into containers using volumetric or peristaltic systems, with parameters like speed, temperature, and pressure adjusted for liquid viscosity.

4. Stoppering/Capping: Post-filling, containers are sealed with rubber stoppers or caps, often under vacuum or sterile air overpressure to maintain sterility.

5. Sterility Maintenance: The minimal distance between filling and stoppering units reduces contamination risks, and the unscrambler design eliminates hard-to-clean areas.

Applications:

• Pharmaceuticals: Filling sterile injectables, eye drops, nasal sprays, and oral liquids with high precision.

• Biotechnology: Processing sensitive biologics and diagnostics, such as COVID-19 test media.

• Cosmetics: Filling lotions, creams, and serums in sterile conditions.

• Veterinary: Filling solutions for animal health products.

Benefits:

• Hygiene and Safety: Ensures sterile filling to prevent microbial contamination, critical for injectables and sensitive products.

• Precision and Consistency: Delivers accurate dosing, reducing waste and ensuring uniform product quality.

• Efficiency: Automates filling, increasing throughput and reducing labor costs, especially in high-speed monobloc systems.

• Versatility: Handles various container types and liquid viscosities, with tool-less changeovers for flexibility.

• Regulatory Compliance: Meets cGMP, FDA, and other standards for sterile processing.

Salient Features of Sterile Liquid Filling Machine

• Suitable for the filling Volume of 2ml to 250ml.

• Piston pump/Peristaltic pump aseptic filling.

• Filling accuracy of ±1%.

• No cross contamination.

• Easy to validate filling system for small/large batch production.

• All Contact Parts Made from Stainless Steel 316L & framework by Stainless Steel 304.

• Variable A.C. frequency drive for speed adjustment.

• Digital Vial Counter for counting production output.

• In-feed Turn Table/ Unscrambler for automatic feeding of objects.

• On-line Mechanism.

• “No Vial – No Filling” System.

• “No Vial – Machine Stop” System.

• IQ/OQ documentation can be provided.

• PLC system with Graphical User Interface. (Optional)

Process Operation of Sterile Liquid Filling Machine

Bottles are feed on to in-built Infeed turn table, from where it delivered to SS conveyor belt. Conveyor belt transport bottles to filling station. Filling station has Pneumatic bottle stopper for exact bottle neck centering of bottles during filling operation.

Nozzle goes upwards slowly from the bottom level of bottle towards neck during filling to minimize forming adjustable nozzle is reciprocating according to filling dose.

The dosing block with a hexagonal bolt, this means different fill size can be set easily within minimum use of time.

After liquid filling bottles are delivered to capping/labeling machine conveyor for further operations.

Technical Specification of Sterile Liquid 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.