StripKraft Looper
The IMS StripKraft Looper is a high-accuracy force measurement device developed for installation between finishing stands in steel hot rolling mills.
Designed in accordance with the highest engineering standards, it measures the force applied to the looper roll directly and provides a reliable real-time signal for strip tension control, process monitoring, mill protection and productivity optimization. Direct measurement of looper force enables faster and more accurate determination of strip tension than estimates based only on actuator force and looper-arm position. This supports improved control of strip thickness and width, reduced strip breaks and increased rolling-mill efficiency.
Utilizing advanced strain gauge technology and a robust mechanical design, all IMS load cells deliver stable performance under the severe operating conditions typically found in rolling mills, including high mechanical loads, vibration, temperature variations, and environmental contamination.
The dimensions of the IMS StripKraft Looper are individually tailored according to customer requirements.
Key Advantages
- Precise strip-tension measurementt with high measuring accuracy, excellent repeatability, and long-term stability
- Long service life and low maintenance requirements
- Fast dynamic response for rapidly changing process conditions
- Sealed, mill-duty construction for exposure to dirt, dust, liquids, steam and corrosive environments
- High resistance to vibration, shock loads, and mechanical stress
- Easy integration into new and existing rolling-mill automation and control systems
Typical Applications
- Inter-stand strip tension control in hot finishing mills
- Automatic gauge control and related process-control function
- Looper position optimization
- Flat and long products
| Nominal measuring range | 0.5 - 100 kN |
| Maximum excitation voltage | ≤ 15 VDC |
| Nominal resistance of strain gauge bridge | > 700 Ω |
| Nominal sensitivity | 0.5 mV/V |
| Repeatability | ≤ ± 0.5 % of full scale output |
| Linearity | ≤ 0.1 % of full scale output |
| Hysteresis | ≤ ± 0.1 % of full scale output |
| Deflection | ≤ 0.03 mm at nominal load |
| Thermal zero drift | ≤ ± 0.08 % / °C (20 °C ~ 100 °C / 68 °F ~ 212 °F) |
| Insulation resistance | > 2 GΩ |
| Operating temperature range | -10 ~ +100 °C (optionally 150 °C / ~ 302 °F ) |
| Limit load | 1,000 % of nominal load |
| Breaking load | 1,200 % of nominal load |
| Degree of protection according to EN60529 (IEC529) | IP67 |
