ZY-Series X-ray Pipeline Crawlers
Dandong Zhongyi Electronic Co., Ltd. (Zhong Yi NDT)
ZY-Series Magnetic Control X-ray Pipeline Crawlers are highly automated, battery-powered systems engineered for precise circumferential radiographic weld inspection inside transmission pipelines.
Key Technical Highlights
- Magnetic Medium Positioning: Tracks and controls crawler status from outside using acoustic signals.
- Battery Protection Auto-Return: Automatically drives back to insertion point on low voltage.
- Constant Voltage Control: Compensates for battery drainage to guarantee consistent X-ray film density.
- Overheating Protection: Automatically shuts down generator exposure on extreme duty cycles.
Product Details & Specifications
How it works
The crawler travels inside pipeline networks, positioning an X-ray exposure head exactly at circumferential pipe welds. A magnetic position locator placed on the pipe exterior instructs the crawler to stop, initiate x-ray exposure, or return. Integrated safety routines prevent crawler loss by auto-returning if signal link is lost for 30 minutes.
Target Applications
Essential testing equipment for pipeline installation projects, gas distribution networks, refinery piping, power generation installations, and third-party NDT service operations seeking high daily weld-inspection cycles.
| Model Parameter | ZY-4C (Small-Medium Pipes) | ZY-3C (Medium-Large Pipes) |
|---|---|---|
| Pipe Diameter Range | 8.6" – 14" (219 – 355 mm) | 13" – 28" (323 – 711 mm) |
| Exposure Tube Voltage | 160 – 200 kV | 200 – 250 kV |
| Climbing Angle | ≤ 30° slope | ≤ 30° slope |
| Weight | ~30 kg | ~45 - 67 kg |
| Drive Configuration | 2-Wheel Drive (2WD) | 2-Wheel / 4-Wheel Drive Options |
| Auto-Return Timer | 30 minutes | 30 minutes |