ROLLMATE Mill Roll Inspection System | Automated UT & EC Roll Testing

ROLLMATE – Mill Roll Inspection System (UT & EC)

ROLLMATE is an advanced automated inspection system designed for detecting surface and internal defects in mill rolls. By combining Ultrasonic Testing (UT) and Eddy Current (EC) technologies, it delivers high-speed, high-precision inspection for roll shop and production environments.

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ROLLMATE is engineered to inspect both forged and cast mill rolls during or after grinding operations. Its multi-sensor architecture enables comprehensive defect detection across the entire roll surface and internal structure, ensuring reliable and repeatable results.

Technical Details

Inspection Methods:
- Ultrasonic Testing (UT)
- Eddy Current (EC)
Applications:
- Mill rolls (work rolls, backup rolls)
- Forged and cast rolls
Inspection Stage:
- During grinding (inline)
- After grinding (offline)
Sensor Configuration:
- Up to 20 sensors (18 independent UT channels + EC channels)
Inspection Type:
- Surface, subsurface, and deep volumetric inspection
Scanning:
- Omni-directional ultrasonic scanning

Inspection Capabilities

Surface crack detection (down to ~0.1 mm)
Subsurface defect detection
Deep internal flaws (core defects, bond lines)
Shell thickness measurement
“Bruise” (soft spot) detection

Key Features

Hybrid UT + EC technology for maximum inspection coverage
Multi-directional defect detection capability
Simultaneous surface and volumetric inspection
Integration with grinding machines
Up to 4× faster than conventional inspection systems
Material-independent performance (suitable for various alloys)
Advanced visualization:
- 3D roll imaging
- C-scan mapping
- Graphical analysis tools
Intelligent analysis for roll life assessment

System Features

Modular architecture – multiple NDT techniques in a single sensor unit
Flexible installation options:
- Mounted on grinding carriage
- Independent actuator system
Fully automated inspection sequences
Integration with production and data management systems