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    Cartridge filling machines: precision at every output

    Precise fill positioning, contamination control and gentle container handling determine quality and yield across every cartridge filling line.

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    High-precision cartridge filling machines for efficiency and quality assurance

    Compliance requirements, capacity pressure and precise stopper placement add complexity to every cartridge filling operation.

    As your strategic lifecycle partner, Syntegon delivers modular cartridge filling machines with accurate fill positioning, stopper placement and low-particle capping technology to support your compliance requirements and keep output consistent across every format.

    Stopper accuracy, GLP-1 scale-up and container protection in cartridge filling

    How to achieve accurate stopper placement in cartridge filling?

    Through individual servo driven motors the stoppers are placed with the highest possible accuracy.

    How to scale cartridge filling capacity for GLP-1 demand?

    Modular filling lines cut time-to-capacity across multiple cartridge formats.

    How to protect cartridge integrity throughout filling?

    Nest-based transport and integrated tray loading remove uncontrolled container contact.
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    Annex 1 Roadshow

    On the road towards compliance

    From September 2026 to April 2027, we will travel across Europe to better understand your needs and show you selected Annex 1 solutions in person. Join our Annex 1 Roadshow to discuss your most pressing topics with our experts.

    Register now

    Cartridge fill-finish line: every component from one source

    mld-5000-isolatorline

    Cleaning machine

    Cleaning machines deliver reproducible cycle times, quick format changes and siliconisation for pen applications.

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    Sterilization and depyrogenation tunnel

    The Tunnel combines modular design, energy-efficient operations and a flexible pressure zone concept for safe, automated sterilization.

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    Glove testing system

    Inline glove integrity testing supports the contamination control strategy required under Annex 1 in Grade A aseptic filling.

    Read more

    Filling machine and isolator

    The MLD 5000 reaches 36,000 cartridges per hour with Annex 1 upgrades suited to GLP-1 and insulin production.

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    Trayloader

    Laser engraving of each filled and sealed cartridge improves product safety and allows data integrity while robotic loading eliminates operator interaction.

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    H₂O₂ biodecontamination and air management

    Rapid bio-decontamination cycles and integrated air handling work together to support Annex 1 compliance across the line.

    Service Agreements - Ramp-Up Packages

    Our Service Agreement packages with defined ramp-up add-ons get you straight from performance qualification to commercial production, while ensuring full regulatory compliance.

    mld-5000-isolatorline

    Cleaning machine

    Cleaning machines deliver reproducible cycle times, quick format changes and siliconisation for pen applications.

    Read more
    mld-5000-isolatorline

    Sterilization and depyrogenation tunnel

    The Tunnel combines modular design, energy-efficient operations and a flexible pressure zone concept for safe, automated sterilization.

    Read more
    mld-5000-isolatorline

    Glove testing system

    Inline glove integrity testing supports the contamination control strategy required under Annex 1 in Grade A aseptic filling.

    Read more
    mld-5000-isolatorline

    Filling machine and isolator

    The MLD 5000 reaches 36,000 cartridges per hour with Annex 1 upgrades suited to GLP-1 and insulin production.

    Read more
    mld-5000-isolatorline

    Trayloader

    Laser engraving of each filled and sealed cartridge improves product safety and allows data integrity while robotic loading eliminates operator interaction.

    Read more
    mld-5000-isolatorline

    H₂O₂ biodecontamination and air management

    Rapid bio-decontamination cycles and integrated air handling work together to support Annex 1 compliance across the line.

    mld-5000-isolatorline

    Service Agreements - Ramp-Up Packages

    Our Service Agreement packages with defined ramp-up add-ons get you straight from performance qualification to commercial production, while ensuring full regulatory compliance.

    Explore the complete line

    Cleaning machine
    Sterilization and depyrogenation tunnel
    Glove testing system
    Filling machine and isolator
    Trayloader
    H₂O₂ biodecontamination and air management
    Service Agreements - Ramp-Up Packages

    Solution Finder

    Find related solutions

    rtu-cartridge
    RTU cartridge filling
    Versynta_microbatch
    Versynta small batch filling

    Cartridge filling machines:
    MLD 3000/5000 and MLD Advanced

    Overall 2 Solutions
    Output performance
    Format range
    Special features
    Changeover
    Container types
    Barrier technologies and line integration
    Best if you want
    MLD 5000
    MLD 3000/5000
    Output performance
    Medium to high output
    Format range
    Cartridges and vials. Combi version for double chamber cartridges
    Special features
    Laser sensor filling. Fast changeover
    Changeover
    Clip in/clip out transport supports fast changeover
    Container types
    Cartridges, vials, double chamber cartridges
    Barrier technologies and line integration
    Flexible integration in RABS and isolator systems
    Best if you want
    Medium to high output with the highest operating efficiency for all your production needs.
    1080x720_MLDAdvanced
    MLD Advanced
    Output performance
    Up to 400/min
    Format range
    Cartridges 1-3 ml, syringes 0.5 – 10 ml, vials 2R-30R
    Special features
    100% in-process control, modular conveyor, tub/nest or tray handling, linear sorting for improved aseptic setup
    Changeover
    Tool-free changeover
    Container types
    RTU, syringes, cartridges and vials
    Barrier technologies and line integration
    Annex 1 compliant, flexible L or U layouts
    Best if you want
    High-speed RTU filling line with 100% IPC. Modular machine design that allows for easy adaptation of process stations by maintaining flexibility in layout arrangement (L- or U-shaped).
    Cartridge Portfolio Brochure

    Download the cartridge filling portfolio brochure

    Download to learn how to build a complete cartridge fill-finish line from formulation to inspection, from a single source.

    • Explore the full MLD machine range across medium, high and RTU output
    • See isolator solutions that integrate into your fill-finish line
    • Discover complete process steps
    Download

    What sets Syntegon cartridge filling apart

    rtu-protection

    Comprehensive inspection for every filled and sealed cartridge

    End-of-line inspection covers air bubbles, particles, cosmetic defects and container closure leaks.
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    Direct interface to printing and inspection for space saving and traceability

    A direct machine interface removes intermediate transport between filling and inspection.
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    Precise transport keeps cartridges in position without centering stations

    The transport system positions every cartridge correctly throughout the filling sequence.

    Your strategic lifecycle partner for cartridge filling

    service-life-cycle
    Ready for everything from start to routine

    From installation to optimization Syntegon supports you with structured service packages, training and specialists for safe, stable and resilient production across the lifecycle.

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    service-life-uptime
    Secure availability every day

    Fast spare parts, qualified support and preventive maintenance help you avoid unplanned downtime, protect performance and keep daily operations reliable.

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    service-future-ready
    Make your line fit for tomorrow

    Scalable modernizations and digital solutions help you adapt to new demands and keep your cartridge filling lines future-ready across changing requirements.

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    Cartridge filling knowledge hub

    Cartridge Portfolio Brochure
    Cartridge Portfolio Brochure

    Full cartridge fill-finish line coverage, from formulation and filling to isolators and inspection.

    Download
    RTU Processing Solutions Brochure
    RTU Processing Solutions Brochure

    RTU fill-finish solutions for nested syringes, cartridges and vials with 100% IPC and isolator integration.

    Download

    Frequently asked questions

    A cartridge filling machine fills and seals pharmaceutical cartridges used in self-injection devices such as insulin pens for GLP-1 and insulin therapies. Apart from GLP1 and insulin therapies, cartridges are also needed for dental anesthetics, were high performance is even more relevant. The process covers filling, stoppering and cap application, all performed inside a controlled aseptic environment. Modern cartridge filling machines handle bulk or ready-to-use containers and integrate with isolators, inspection systems and tray loaders to form a complete fill-finish line.

    Syntegon cartridge filling machines are designed for isolator integration and include inline glove integrity testing as part of the filling sequence. These features support the Contamination Control Strategy required under the 2023 EU GMP Annex 1 revision by addressing the key contamination risk points in Grade A aseptic filling. Syntegon's isolator solutions are Annex 1-compliant and integrate directly into the cartridge fill-finish line. In addition to that the whole machine got optimized (e.g. proper aseptic setup with tools, avoidance of first air interruptions).

    Bulk cartridge filling uses containers that require washing, siliconisation and sterilisation before filling. RTU cartridge filling uses pre-sterilised, nested containers that enter the line ready for aseptic processing, removing upstream preparation steps. RTU formats reduce line complexity and floor space requirements but demand precise, low-contact handling throughout the filling sequence to protect container integrity and prevent particle generation.

    The MLD 5000 is built for high-speed cartridge production and includes the latest Annex 1 upgrades, making it suited for GLP-1, insulin manufacturing and dental anesthetics at scale. For manufacturers requiring high output with 100% in-process control across RTU container formats, the MLD Advanced provides dedicated inspection and modular flexibility on a single qualified platform.

    100% in-process control means every cartridge is checked individually during the filling process rather than through selective sampling. For high-value cartridge filling, partial checks leave quality gaps that 100% IPC eliminates. The MLD Advanced delivers 100% IPC with 100% check weighing of each individual cartridge, providing maximum protection across every batch and supporting consistent product quality at high output speeds.

    Syntegon offers structured service packages covering installation, qualification, training and ongoing operational support. Preventive maintenance and fast spare parts supply protect daily availability and reduce unplanned downtime. Modernizations and digital solutions support capacity and efficiency improvements as production requirements evolve. Syntegon supports around 75,000 installed systems globally with a lifecycle service offering designed to protect uptime and long-term line performance.

    Interested in cartridge filling machines?

    Interested in cartridge filling machines?

    Talk to a Syntegon expert to learn more about cartridge filling machines.

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