BioDot RR120 Modular Web Handling System with AirJet Dispenser, Vision Inspection & Dual Drying Towers

The BioDot RR120 Modular Web Handling System is a sophisticated roll-to-roll processing platform designed for delicate membrane handling, reagent dispensing, and integrated quality control, widely applied in biotechnology, molecular diagnostics, and biosensor manufacturing workflows. It supports membrane widths from 5 mm to 120 mm and adjustable web speeds up to 100 mm/sec, enabled by a servo-driven capstan module ensuring precise tension control for both backed and unbacked membranes.

Key technical features include:

• Non-contact AirJet dispensing system with two pumps providing continuous, high precision reagent deposition across line volumes ranging 0.1 - 24 μL/cm, suitable for aqueous, organic, and colloidal solutions. Dispense repeatability is maintained with CV <5%, making it essential for protein line dispensing and bioprocessing applications requiring controlled coating uniformity.
• Dual drying towers, each equipped with three independently controlled infrared-heated zones, offering temperature control from ambient to 70°C to stabilize coated reagents, critical for biopharmaceutical production pipelines requiring solvent evaporation and reagent fixation.
• The Keyence CA-H048MX in-line monochrome vision system (5 MP resolution, 2448 × 2048 px) paired with an 8 mm f/1.4 C-mount lens executes real-time inspection of line presence, width, alignment, and dot placement, enabling high-throughput quality control during membrane coating processes and supporting workflows in synthetic biology research.
• Integrated modules include payout and takeup reels with tension and speed synchronization, a diptank for immersion coating with automatic fluid level detection, and automated web edge alignment to minimize defects in membrane processing.
• Designed for applications such as lateral flow assay (LFA) manufacturing, biosensor strip production, and membrane coating and drying with modular expandability (additional pumps and dispensers can be added based on process requirements).

This system is critical in gene editing, molecular cloning workflows, and other biomanufacturing processes by facilitating precise line dispensing and coating on membrane substrates, combined with inline defect detection and environmental control via drying towers.

The BioDot RR120 is a current model available fully tested, serviced, and warranted, backed by expert technical support and customizable options including additional dispensing units. It accommodates biotechnological labs and production pipelines requiring high reproducibility and automation for roll-to-roll membrane processing with integrated quality assurance.

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