Process basics
Stretch-bend leveling reduces waviness, buckles and shape defects by combining strip tension with controlled bending.
Tension Leveler Guide
Tension Leveler Guide for flatness and shape correction
A tension leveler uses tension and bending to reduce waviness, camber and residual stress so downstream cleaning, slitting and recoiling become more stable.
Guide overview
This Tension Leveler Guide introduces stretch-bend leveling in a coil processing route. The leveler does not simply press the strip flat; it applies controlled tension and repeated bending so residual stress and shape defects are reduced.
Important parameters include yield strength, strip thickness, width, target elongation, roll diameter, bridle roll tension, flatness requirement, surface sensitivity and the equipment sections before and after the leveler.
Where this topic appears
- Stainless steel, silicon steel, carbon steel and selected nonferrous strip processing routes.
- Coil processing lines that include pickling, rolling, cleaning, tension leveling, slitting and recoiling.
- Beginner tutorials, parameter reviews and terminology discussions before equipment comparison.
Parameter Guide
Tension Leveler Guide reference range
These ranges help readers understand typical coil-processing language. Final equipment specifications always depend on material grade, thickness, coil weight, process target and plant conditions.
| Guide item | Typical width | Line speed | What beginners should notice |
|---|---|---|---|
| Double-bend single-leveler | 350-1780 mm | 500-800 m/min | A compact flatness-correction concept for conventional finishing lines. |
| Double-bend double-leveler | 350-1780 mm | 500-800 m/min | Provides stronger correction when flatness requirements are higher. |
| 23-roll tension leveler | 350-1780 mm | 500-800 m/min | Used for demanding strip programs that need finer shape correction. |
Knowledge Focus
What to understand before comparing equipment.
Parameter guide
Yield strength, target elongation, roll diameter, bridle tension and line speed decide how aggressive the correction can be.
Terms to know
Elongation, bridle roll, work roll, flatness, camber, edge wave and center buckle are common tension leveling terms.