Isotope/X-Ray Strip Thickness Measurement System For Hot & Cold Rolling Mills
High Speed Accurate Measurement Gauges
ITG-2000 / XTG-2000
The ITG-2000 / XTG-2000 are online thickness gauges for accurate, high-speed measurement of ferrous and non-ferrous metal strips. They are designed for hot & cold rolling mills and strip processing lines, with rugged C-frame construction for demanding industrial environments.
The ITG-2000 / XTG-2000 measure strip thickness continuously without physical contact with the material.
The system can be used on hot & cold rolling mills and strip processing lines for materials such as mild steel, stainless steel, aluminium and copper.
A custom-fabricated C-frame protects the sensors from oil and coolant ingress. The rugged frame is also designed to withstand strip hits during coil breakage and provide reliable, low-maintenance operation.
The system can work in both spot and scanning measurement modes, allowing operators to monitor thickness trends in the machine direction or view the thickness profile across the complete strip width.
Hundreds of installations worldwide demonstrate the use and acceptance of the ITG-2000 / XTG-2000 systems.
- Non-contact measurement
- High-speed spot and scanning measurement
- 1 msec AGC output
- Air-gap temperature compensation for hot webs
- Precise C-frame / O-frame construction with reduced deflection and misalignment
- Comprehensive production reports
- Integrated water-cooling jacket
- Suitable for MS, SS, aluminium, copper and other metals
Single Spot Measurement
In Single Spot Measurement mode, the measuring head is normally positioned at the centre of the strip. It can also be positioned at any selected point across the strip width.
This mode measures the machine-direction thickness trend of the strip, making it useful for continuously monitoring thickness changes during production.
Continuous Scanning Mode
In Continuous Scanning Mode, the measuring head moves continuously from one edge of the strip to the other.
After each scan, the system displays the cross-sectional thickness profile on the operator screen, giving a clear view of thickness variation across the complete strip width.
Measurement Principle
The measuring principle is based on the attenuation of Gamma/X-rays as they pass through the material.
The system determines thickness by detecting changes in the energy received from a radiation source with known intensity.
General Specifications
| Specification | Details |
|---|---|
| Radiation Source | 300 mCi – 3 Ci Am-241 |
| Air Gap | 200 mm |
| AGC Output | ±10 V, 1 msec response time |
| Statistical Noise | @ 2 Sigma Values |
Statistical Noise — 1 Ci Am-241
| Thickness | 20 ms | 50 ms | 100 ms |
| 0.15 mm | ±4.0 µm | ±2.6 µm | ±1.8 µm |
| 1.0 mm | ±0.70% | ±0.35% | ±0.26% |
| 2.0 mm | ±0.60% | ±0.32% | ±0.21% |
| 3.0 mm | ±0.60% | ±0.28% | ±0.26% |
| 4.0 mm | ±0.70% | ±0.35% | ±0.32% |
| 5.0 mm | ±0.87% | ±0.48% | ±0.35% |
General Specifications — 3 Ci Am-241
| Specification | Details |
| Radiation Source | 3 Ci Am-241 |
| Air Gap | 200 mm |
| AGC Output | ±10 V, 1 msec response time |
| Statistical Noise | @ 2 Sigma Values |
Statistical Noise — 3 Ci Am-241
| Thickness | 10 ms | 20 ms | 50 ms | 100 ms |
| 0.15 mm | ±3.2 µm | ±2.3 µm | ±1.5 µm | ±1.0 µm |
| 1.0 mm | ±0.56% | ±0.40% | ±0.20% | ±0.15% |
| 2.0 mm | ±0.42% | ±0.30% | ±0.18% | ±0.12% |
| 3.0 mm | ±0.45% | ±0.32% | ±0.16% | ±0.15% |
| 4.0 mm | ±0.56% | ±0.40% | ±0.20% | ±0.18% |
| 5.0 mm | ±0.70% | ±0.50% | ±0.28% | ±0.20% |
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