Why CO₂ Laser Cutting Is Crucial for Safety and Clean Edges — The Final Step in Precision Glass Forming

Why CO₂ Laser Cutting Is Crucial for Safety and Clean Edges

— The Final Step in Precision Glass Forming

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In medical-grade glass syringe production, the cut quality of each tube isn’t just a finishing touch — it’s a critical quality factor that affects sealing, assembly, and ultimately patient safety.

At Sunrise Medical, every tube is cut using a low-energy CO₂ laser, precisely calibrated for borosilicate tubing.

The Problem with Mechanical Cutting

Traditional mechanical cutting can introduce:

• Micro-cracks at the cut edge

• Burrs or debris, compromising sterility

• Irregular sealing surfaces, increasing leakage risk

These defects often remain invisible to the naked eye but become failure points under autoclave sterilization or high-pressure injection.

✨ Advantages of CO₂ Laser Cutting

• Burr-free edge formation

• No tool contact = no contamination risk

• Repeatability with ±0.2 mm length tolerance

• Stable process = high throughput in automated lines

The beam is fine-tuned to penetrate the glass wall cleanly, followed by a nitrogen gas jet to blow away micro-fragments and cool the cut.

Quality Inspection

Each cutting unit is equipped with:

• Infrared edge profile cameras

• Random SEM (Scanning Electron Microscope) checks

• Pass/Fail sorting system based on edge geometry

All data is logged for traceability to specific batches — supporting FDA and ISO 11040 documentation requirements.

✅ Key Takeaways

• CO₂ laser cutting ensures clean, crack-free syringe glass edges

• Eliminates burrs, reduces contamination risk

• Edge quality verified via camera and SEM inspection

• Supports high-speed, high-precision syringe production

Want to learn more about how laser processing improves syringe safety and automation?
Contact Sunrise Medical for OEM partnership opportunities.