How a Guangdong Granule Manufacturer Eliminated Foreign Body Risks with Yiwan X-Ray Inspection

Product: Single-dose granule sachets
Challenge: Hidden contaminants in powder-based pharmaceuticals
Solution: Yiwan CQ-YW Series X-Ray Inspection System

The Problem: Why Metal Detectors Weren't Enough

Granule sachets present a unique QC dilemma. The density of compacted powder creates a strong "product effect" that confuses traditional metal detectors, triggering false rejects and eroding line efficiency. Worse, non-metallic contaminants — crushed stone fragments from raw material processing, ceramic shards, or hardened organic lumps — pass straight through a metal detector undetected.

For this Guangdong pharmaceutical manufacturer, shipping contaminated product wasn't just a quality issue. It was a regulatory liability.

The Yiwan Solution

We deployed a CQ-YW series X-ray inspection system directly on their high-speed sachet packaging line.

As the video shows, each packet enters the inspection tunnel on a blue conveyor belt. The X-ray imaging engine captures a real-time, high-contrast scan of every single sachet — penetrating the foil laminate, the compacted powder, and the sealed edges — in milliseconds.

The system simultaneously checks for:

• Metal fragments (stainless steel as small as 0.4mm)
• Stone and mineral contaminants from raw herbal ingredients
• Missing or broken sachets (integrity check)
• Clumped or malformed granules (density anomaly detection)

Defective packets are automatically rejected from the line before they reach the cartoning station.

The Result

For manufacturers exporting to markets with stringent pharmaceutical GMP standards, a validated X-ray checkpoint on the packaging line isn't optional — it's the minimum credible defense.