TOSEI ACS20
Vial Capper For Mini Lot
Small Batch Vial Bottle Cap Screwing Machine
The AC20 is a benchtop fully automated vial and cartridge bottle capping and sealing machine designed for biotechnology and pharmaceutical R&D, cell and gene therapy (CGT), ADC, clinical trial batches (Phase I/II/III), and high-value small-batch production. Addressing the needs of various container sizes and high-quality sealing, the AC20 features a compact, modular, and quick-release design, achieving a high-precision, extremely low-dust fully automated roller capping process on a single benchtop platform. It can be seamlessly integrated into aseptic isolators, biosafety cabinets (BSCs), or aseptic laminar flow systems.
I. Wide compatibility with various container sizes and cap types: Fully compatible with RTU vials (2–100 mL) and cartridges/refills (1.5–3 mL), supporting Ø13 mm, Ø20 mm and Ø32 mm pure aluminum caps and Flip-Off aluminum-plastic composite caps.
II. Low-dust precision rotary roller cap technology: Utilizing a servo precision multi-roller rotary forming mechanism, it can significantly suppress the generation of metal debris and particles compared to traditional stamping dies (compliant with Grade A / ISO Class 5 specifications), ensuring excellent container seal integrity (CCI).
III. Servo Precision Pressure and Height Closed-Loop Monitoring: Servo drive precisely controls the vertical downward pressure and lateral roller forming stress, effectively preventing bottle mouth cracking and excessive pressure deformation of the rubber stopper, ensuring a flat and consistent seal and stable airtightness.
IV. Capacity efficiency and quick changeover design: Cap capacity up to 20 pcs/min (1,200 pcs/hr); modular snap-on quick-release design enables tool-free specification switching and disassembly/cleaning within minutes.
V. Aseptic protection and isolation device integration: Streamlined body with no dead angles and SUS316L pharmacopoeia-grade material, compatible with ISO Class 5 / Grade A vertical unidirectional flow, can be directly integrated into Isolator / RABS / BSC, the whole machine can withstand VHP space sterilization and high concentration IPA wiping.
VI. Computerized Compliance and Complete Validation: Equipped with audit tracking and electronic signatures, compliant with FDA 21 CFR Part 11, EU GMP Annex 11 and GAMP 5, and providing complete DQ/IQ/OQ/PQ validation documentation.

Equipment Introduction
Wide-range container and cap compatibility.
A single unit can accommodate a variety of commonly used sterile container types, including RTU (ready-to-use) vials (2 - 100 mL) and cartridges/pen refills (1.5 - 3 mL).
It fully supports standard pure aluminum caps of Ø13 mm, Ø20 mm and Ø32 mm as well as Flip-Off aluminum-plastic composite caps, meeting the needs of multi-pipeline R&D and flexible production.
High-efficiency Automated Capping Performance
Designed specifically for laboratory research and development, clinical trials (Phase I/II) and high-value small-batch manufacturing processes, capping capacity can reach up to 20 pcs/min (1,200 pcs/hr).
The automated and precise positioning and sealing process significantly reduces human intervention and the risk of contamination in aseptic operating areas.
Low-Particle Precision Roller Crimping Technology
The servo-controlled multi-roller rotary capping mechanism significantly reduces the generation of metal debris and particles during the capping process compared to traditional stamping dies (compliant with Grade A / ISO Class 5 particle specifications).
Precise control of vertical downward pressure and lateral roller forming stress effectively prevents bottle neck breakage and stopper deformation, ensuring excellent container seal integrity (CCI).
Tool-less Quick-Change Modular Design
The modular design allows for easy switching between different bottle sizes (2-100 mL) and cap diameters without the need for special tools, and the process can be completed in minutes.
The operation settings and daily maintenance process are greatly simplified, significantly reducing downtime between different production batches.
High Isolator & BSC Compatibility
The ultra-compact benchtop design allows for independent use in general operating environments, or it can be seamlessly integrated into a biosafety cabinet (BSC), clean bench, or dedicated ISO-100 isolator (Grade A / ISO Class 5 chamber).
The entire machine has excellent sealing and protection levels, and can fully withstand vaporized hydrogen peroxide (VHP) space sterilization and high-concentration IPA wiping disinfection.
Pharmacopeia-Grade Sanitary Materials with Corrosion-Resistant Design
All structural and contact parts are made of AISI 316L medical-grade stainless steel, and all non-metallic sealing components meet USP Class VI biocompatibility standards.
The surface is smooth and flat, with no dead corners, making it easy to clean and completely preventing dust accumulation, thus meeting the strict anti-contamination standards of cGMP aseptic process.
cGMP and 21 CFR Part 11 Intelligent Control & Compliance
It adopts an industrial-grade PLC control system and an intuitive color touch human-machine interface (HMI) to support multiple product parameter recipe management and one-click retrieval.
Fully compliant with FDA 21 CFR Part 11, EU GMP Annex 11 and GAMP 5, with built-in multi-level user access control, electronic signatures and an unalterable complete audit trail.
We provide complete and valid documentation and technical support for original equipment manufacturer (OEM) standards DQ/IQ/OQ.
Product Features

Low-particle precision roller cap (compatible with multiple specifications)

Designed specifically for sterile isolators

High-efficiency small-batch production and cGMP
21 CFR Part 11 regulations
Overall Specifications
Applicable containers and caps :
Applicable bottle types : RTU (ready-to-use) vials (2-100 mL), RTU cartridges (1.5-3 mL)
Applicable cap types : Standard aluminum caps, Flip-Off aluminum-plastic caps (common sizes such as Ø13 mm, Ø20 mm, Ø32 mm, etc.)
Sealing mechanism and process technology :
Precision roller capping process : Employing a patented low-dust rotary roller capping mechanism to ensure a uniform, smooth seal and high airtightness.
Tightening force and torque control : Precisely control the downward stroke of the cap top and the pressure of the side rollers during capping to prevent deformation of the bottle stopper or damage to the glass bottle.
Modular quick-change design : Tool-less format changeover eliminates the need for complex tools, allowing for rapid adaptation to different bottle and cap diameters.
Maximum production capacity : up to 20 pcs/min (depending on container capacity, cap size and operating mode)
Particulate control and aseptic compatibility :
Ultra-low particulate matter generation : The design is specifically optimized for a clean environment, significantly reducing the generation of metal and polymer dust during the rolling process.
Aseptic installation configuration : It can be placed independently on a cleanroom workbench; or it can be seamlessly embedded in a Grade A (ISO Class 5) isolator , biosafety cabinet (BSC), or laminar flow cabinet (LAF) for operation.
Structural materials and hygienic design :
Contact and critical components : Made of SUS316L medical-grade stainless steel
Polymer materials : Fully compliant with USP Class VI biocompatibility specifications.
Chemical resistance : The entire machine surface and seals are resistant to vaporized hydrogen peroxide (VHP) sterilization cycles and high-concentration isopropanol (IPA) surface wiping disinfection.
Control system complies with regulations :
Core control architecture : Employs an industrial-grade PLC, conforming to IEC 61131-3 and the PLCopen international program architecture standard.
Human-Machine Interface : Color touchscreen (HMI), supporting recipe management, real-time status monitoring, and alarm recording.
Data completeness : Complies with FDA 21 CFR Part 11 and GAMP 5 (featuring multi-level user access control, electronic records, and a security audit trail).
Validation documentation and verification support : Provides complete DQ (Design Qualification), IQ (Installation Qualification), and OQ (Operation Qualification) validation documentation compliant with international cGMP standards, and supports on-site PQ (Performance Qualification) technical services.
Equipment Appearance Features : Compact and small structure (Benchtop / Compact Footprint), specifically designed for optimization in sterile isolation workspaces.




