Which part controls the tension in metal coil slitting line: Tension Station
The tension station in a metal coil slitting line plays a critical role in maintaining stable strip tension during the slitting and recoiling process. It typically consists of felt pads, brake rollers, or tension durms, and works by applying controlled resistance to the moving strip. This ensures smooth strip travel, clean edge quality and tight winding of slit coils. Especially important when processing thin, coated, or sensitive materials, the tension station helps to prevent surface scratches, telescoping, and misalignment, ensuring consistent production quality.
The fuction of tension control in a metal coil slitting line is to regulate and maintain the proper tension on the metal strip as it passes through various stages of the slitting process. This ensures precise slitting, prevents material deformation and contributes to the overall quality of the finished coils.
Key functions:
1. Maintain Strip Flatness and Alignment
- Keeps the strip taut to avoid wrinkles, slack or curling
- Helps ensure the strip runs straight through the slitter, which is critical for accurate edge cutting
2. Prevents Coil Telescoping and Overlap
- On the recoiler side, proper tension prevents uneven winding, such as telescoping or overlapping layers
3. Protects Surface Quality
- Especially for sensitive materials like stainless steel, aluminum or copper, improper tension can cause scratches, dents or scuff marks
- Tension control systems minimize friction and surface damage
4. Ensures Stable Speed Synchronization
- Coordinates speed between the uncoiler, slitter, tension stand and recoiler
- Prevents strip snapping or buckling due to sudden speed changes or mismatched torque.
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