Overview

　　The Guanshentai Automatic Pipette Leak Tester is specialized automated equipment designed to test the seal integrity of pipettes, Pasteur pipettes, droppers, and various hollow tubular containers. Integrating automatic tube loading, sealing/clamping of the tube end, pressure/vacuum testing, and automatic pass/fail assessment with reject removal, the system employs high-precision differential pressure or flow-based leak detection principles. It automatically screens for defects such as micro-leaks, pinholes, cracks, and uneven wall thickness. The unit achieves a testing speed of 30–60 pieces per minute and a sensitivity capable of detecting leak rates as low as 0.01 ml/min.

　　Key Advantages:

　　High-Precision Airtightness Testing: Utilizes a differential pressure or mass flow-based airtightness testing system with an accuracy of ±0.5% FS. It precisely identifies minute leaks (minimum detectable leak rate of 0.01 ml/min), effectively detecting micropores, sand holes, and weld cracks invisible to the naked eye.

　　Multi-Station Parallel Testing: Configurable with 4 to 16 stations for simultaneous parallel testing based on production requirements. Each station operates with independent sensors and assessment logic without mutual interference, significantly increasing throughput per unit of time.

　　Flexible Tube-End Sealing Technology: Employs custom sealing fixtures made of urethane or silicone. Pneumatic clamping ensures a complete seal at the tube opening; the flexible contact guarantees sealing effectiveness while preventing deformation or damage caused by crushing. Sealing pressure is independently adjustable to accommodate tubes of varying wall thicknesses and diameters.

　　Error-Prevention Compensation Mechanism: Equipped with an automatic calibration function using standard leak orifices (reference parts). The system periodically performs zero-point and span calibrations to eliminate test deviations caused by fluctuations in ambient temperature or air pressure, ensuring the accuracy and consistency of long-term test data.

　　Automatic Defect Separation: Upon completion of testing, the system automatically classifies products as pass or fail. Defective units are separated into a waste collection area via independent air-blast ejection or robotic removal, ensuring complete segregation of good and defective products and eliminating the risk of mix-ups.

　　Selectable Multi-mode Testing: Supports three testing modes—positive pressure (for pressure-bearing wall testing), negative pressure/vacuum (for liquid-aspirating tube seal integrity), and differential pressure decay (for micro-leak detection in flexible tubing)—allowing for flexible selection based on product characteristics.

　　Data Logging and Traceability: Features real-time display and storage of test data; results for each tube can be traced back to the specific workstation and time, providing comprehensive data support for quality control.

　　Clean-Room Compatible Design: Constructed with a SUS304 stainless steel frame and transparent protective covers, the unit features a sealed, dust-proof testing zone suitable for operation in clean-room environments, meeting the standards required for medical device and laboratory consumable production.

　　User-Friendly Operation: Controlled via PLC and a touchscreen HMI; parameters such as test pressure, duration, and pass/fail thresholds can be set with a single touch. Multiple product recipes can be saved and quickly recalled for rapid production changeovers.

　　Applications:

　　Widely applicable to seal integrity testing for hollow tubular containers, including life science consumables (pipettes, Pasteur pipettes, serological pipettes, droppers), medical consumables (vacuum blood collection tubes, drainage tubes, infusion tubing), laboratory equipment, and food packaging components (beverage straws, dropper bottle tips). The Guanshentai Automatic Pipette Leak Tester delivers precise, efficient, and fully automated performance, enabling manufacturers to achieve 100% inspection of tube seal integrity, effectively eliminating quality risks such as liquid or gas leakage, and ensuring product safety and reliability.

　　Technical Parameters:

　　Model: GST-YYG104A

　　Pipette capacity: 10-100ml

　　Sizes: 1700*1500*1850mm

　　Production Capacities: 2000-2400pcs/h

　　Power (Output): 1KW

　　Customized Support: Yes