Coil Slitting Machine Line

Shijiazhuang Faith Machinery Co.,Ltd is pleased to highlight its Coil Slitting Machine Line, engineered to convert wide metal coils into multiple narrow strips with consistent edge quality and precise width tolerances. Designed for steel service centers, appliance manufacturers, and precision component producers, this line combines robust mechanical construction with advanced controls to meet diverse production requirements.

Line Configuration and Workflow

1. Coil Loading and Decoiling

• Hydraulic mandrel decoilers accommodate coil weights up to 20 tons and inner diameters ranging from 508 mm to 610 mm.

• A powered coil car positions each coil automatically, minimizing manual handling and improving safety.

2. Strip Straightening and Tension Leveling

• Multi‐bar levelers remove residual curvature and camber in the incoming strip.

• Load‐cell feedback and closed‐loop PLC control maintain uniform tension, critical for slit edge integrity.

3. Slitting Section

• Upper and lower rotary knives, mounted on precision slide rails, shear the strip into specified widths.

• Knife shafts feature quick‐release holders, enabling rapid changeovers between different slit configurations.

4. Recoiling

• Dual recoilers winding at speeds up to 200 m/min maintain consistent line tension and coil build quality.

• Transverse guides and centering arms ensure concentric winding, reducing coil telescoping.

5. Edge Trim and Scrap Handling

• Integrated edge trimmers collect waste strips, which are conveyed to a scrap conveyor for recycling.

• Servo‐driven choppers cut scrap into uniform lengths, facilitating downstream material handling.

Precision and Control Features

• Automatic Knife Gap Adjustment: Torque sensors monitor slitting forces and prompt PLC‐driven adjustments to maintain optimal knife clearances.

• Surface Protection: Non‐marking guide rollers protect delicate coatings, while gentle tension leveling prevents micro‐cracking.

• Data Logging: Production parameters—line speed, tension profiles, knife torque—are recorded in a SQL database for traceability and process optimization.

Customization Options

• Material Range: Suitable for carbon steel, stainless steel, aluminum, and coated substrates with thicknesses from 0.15 mm to 3 mm.

• Width Flexibility: Standard slit widths range from 10 mm to 1,200 mm; optional micro‐slitting modules enable widths down to 2 mm.

• Layout Variants: Straight‐line, L‐type, and U‐type configurations accommodate varied factory footprints and material flow requirements.

Automation and Integration

• Centralized Control: A Siemens or Delta PLC coordinates decoiler, leveler, slitter, and recoiler operations via an Ethernet backbone.

• HMI Recipe Management: Touchscreen interface allows operators to recall slit configurations and material parameters in under two minutes.

• ERP Connectivity: OPC UA interface supports real‐time data exchange with enterprise resource planning systems for inventory tracking and production planning.

After-Sales Support

Shijiazhuang Faith Machinery Co.,Ltd provides turnkey installation, commissioning assistance, and operator training. Preventive maintenance contracts cover regular inspections of knife holders, bearings, and hydraulic systems. A dedicated spare parts program ensures rapid shipment of critical consumables, minimizing unplanned downtime and keeping production running smoothly.