Steel Coil Slitting Machine

Shijiazhuang Faith Machinery Co.,Ltd’s Steel Coil Slitting Machine is intended for high‑precision slitting of steel coils into multiple narrow strips, serving automotive component manufacturers, appliance fabricators, and metal service centers.

1. Line Components and Operation

1. Coil Car and Decoiler

• Hydraulic coil car positions up to 25 ton coils onto the mandrel decoiler.

2. Tension Leveler

• Multi‑bar leveler removes residual curvature, ensuring flat strip entry.

3. Slitting Section

• Upper and lower rotary slitting knives shear the strip into specified widths.

• Pneumatic quick‑release knife holders enable rapid knife spacing adjustments.

4. Recoiler

• Dual recoilers with VFD control maintain consistent tension and coil build.

5. Scrap Handling

• Edge trimmers collect waste trim, which a shear‑chopper unit cuts into uniform pieces for recycling.

2. Precision and Quality Controls

• Automatic Knife Gap Adjustment: Torque sensors on knife shafts detect slitting forces and trigger PLC compensation to maintain clearances.

• Edge Guide System: Laser sensors monitor strip position, guiding recoiler traverse to prevent telescoping.

• Data Logging: Line speed, tension profiles, and knife torque are recorded for process analysis.

3. Customization and Capacity

• Material Thickness: 0.15 mm to 4 mm for cold‑rolled and hot‑rolled steels.

• Slit Width Range: 5 mm to 1,200 mm, with optional micro‑slitting down to 2 mm.

• Line Speed: Standard up to 200 m/min for high‑speed cold‑rolled applications; 80 m/min for heavy gauge operations.

4. Automation and Integration

• Central PLC Management: Coordinates decoiler, leveler, slitter, and recoiler drives via industrial Ethernet.

• HMI Recipe Recall: Operators load slit patterns and material parameters in under two minutes.

• ERP Linkage: OPC UA connectivity transmits production data for inventory and scheduling systems.

5. After‑Sales and Maintenance

• Commissioning and Training: Faith Machinery’s engineers oversee on‑site startup and operator training on knife change, tension setup, and safety procedures.

• Preventive Maintenance: Scheduled inspections of knife bearings, leveler rolls, and hydraulic units ensure consistent slit quality and machine uptime.

• Spare Parts Availability: Stocked knives, bearings, and pneumatic components enable quick replacements and minimize downtime.