Overview

　　The Guanshentai Ultrasonic Welding and Leak Testing Machine for culture flasks is an integrated system designed specifically for the automatic welding, sealing, and integrity testing of cell culture flasks, bioreactor vessels, and medical plastic culture devices. The equipment combines automatic feeding and positioning of the upper and lower flask shells, ultrasonic welding, cooling/setting, airtightness leak testing, and product sorting into a single unit. It achieves fully automated assembly and quality verification—transforming bulk components into finished flasks—with production speeds ranging from 15 to 40 flasks per minute (depending on flask size).

　　Key Advantages:

　　Precision Ultrasonic Welding: Utilizes a high-frequency ultrasonic welding system that generates heat through intermolecular friction at the plastic contact surfaces, causing them to melt and fuse rapidly under pressure. This results in high weld strength, excellent sealing, and no particulate contamination; the weld seam is aesthetically pleasing, free of overflow or flash. Welding parameters (amplitude, pressure, weld time, and hold/cooling time) are precisely controlled by a PLC to ensure consistency across batches.

　　Multi-Specification Compatibility: By simply changing the positioning jigs and welding horns, the machine accommodates various flask sizes (such as T25, T75, and T175) and irregularly shaped plastic culture vessels, offering versatility and flexible production changeovers.

　　Automatic Leak Testing: Integrates an airtightness testing system based on differential pressure decay or vacuum decay methods. High-sensitivity pressure sensors monitor internal pressure changes post-welding, achieving a testing precision of 0.01 kPa and the ability to detect micron-level leaks. Testing parameters can be flexibly adjusted based on flask volume and material properties to balance detection rates with false-rejection rates.

　　In-line Sorting and Rejection: The system automatically evaluates results after leak testing, routing qualified and unqualified products into separate discharge channels. Defective units are automatically marked and isolated to prevent mixing with finished batches, ensuring 100% inspection compliance for outgoing products.

　　Clean-Room Compatible Design: The machine features an SUS304 stainless steel frame and transparent protective enclosures. The welding zone is sealed against dust, allowing for operation within Class 100,000 cleanrooms and ensuring compliance with GMP manufacturing standards for biopharmaceuticals and medical devices.

　　Data Traceability Management: Features built-in production data logging and storage capabilities, recording key metrics such as batch output, welding parameters, leak test results, and defect rates. It supports data export via USB or integration with MES systems, ensuring compliance with quality management system traceability requirements.

　　Ease of Operation: Utilizes a PLC and touchscreen HMI; welding and leak-testing parameters can be set independently, with multiple product recipes saved for instant recall during changeovers. Operators can achieve proficiency with minimal training.

　　Application Scenarios:

　　Ideal for the precision welding, sealing, and integrity testing of plastic culture vessels—including life science consumables (cell culture flasks, roller bottles, cell factories), medical devices (disposable sterile containers, medical waste fluid collection bottles, dialysis fluid containers), and biopharmaceutical packaging (culture media storage bottles, buffer storage containers). With its superior performance—characterized by high efficiency, precision, and cleanliness—the Guanshentai ultrasonic welding and leak-testing machine empowers manufacturers of life science consumables and medical devices to upgrade to an integrated, automated process for sealed assembly and quality inspection.

　　Technical parameters:

　　Equipment Model: GST-PYP100A

　　Freezing tube capacity: 25-250ml

　　Sizes: L2550*W2000*H1500(mm)

　　Production Capacities: 600pcs/h

　　Power (Output): 1.5kw

　　Customized Support: Yes