Drug delivery devices—such as insulin pens, inhalers, and injectors—require accurate and reliable assembly to ensure precise dosing (dosing accuracy ≤±2%) and patient safety. These devices contain sensitive internal mechanisms (such as pumps, valves, and sensors) that must be protected from damage during assembly. Traditional welding methods may introduce vibration or thermal stress that misaligns internal components, leading to dosing errors or device failure. DaokeDao laser welding ensures consistent performance of drug delivery device components by using a vibration-free, low-thermal-impact process. The non-contact process protects internal mechanisms from damage, ensuring precise dosing accuracy. It forms reliable, leak-proof welds (helium leak rate ≤1×10⁻⁸ mbar·L/s) that prevent drug leakage and contamination, ensuring patient safety. The process is compatible with medical-grade plastics used in drug delivery devices, including PC, ABS, and PP, which are biocompatible and resistant to chemical degradation from drugs. Our laser systems feature precise energy control (laser power adjustable from 5W to 100W) and positioning accuracy (±0.008mm), ensuring consistent weld quality for each device. They support high-volume production (up to 100 units/hour) with fast cycle times, helping drug delivery device manufacturers improve product reliability, reduce dosing errors, and meet strict regulatory requirements (FDA 21 CFR Part 820).
