Product Overview
High-Performance Coil Processing for Ultimate Flatness and Accuracy
Our High-Precision Cut-to-Length (CTL) Line is an advanced, fully automated coil processing system designed to uncoil, flatten, measure, shear, and stack metal sheets with exceptional dimensional accuracy and superior surface quality.
Designed for high-duty continuous operation, this machine integrates a heavy-duty mechanical frame with high-precision servo controls. By effectively eliminating internal stress in metal coils, it produces dead-flat sheet metal blanks that meet the stringent requirements of downstream processes such as laser cutting, stamping, bending, and roll forming.
Key Features & Advantages
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High-Precision Stress Relief Leveling: Equipped with a multi-roll precision leveler that eliminates coil set, cross-bow, and internal material stress, ensuring perfectly flat sheet output every time.
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Non-Marring Belt Conveyor System: Features a heavy-duty, high-grip green belt conveyor table that transports cut sheets smoothly to the stacker without scratching or damaging delicate surfaces (ideal for stainless steel, aluminum, and pre-painted coils).
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Servo-Driven Shearing Accuracy: Utilizes high-torque servo motors paired with a rigid shear unit to guarantee cut-length tolerances down to ±0.2mm – ±0.3mm and pristine, burr-free edges.
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Quick-Adjust Automatic Stacking: The ergonomic drop-stacking unit features side-alignment baffles and convenient handwheel adjustments, allowing quick setup for various sheet lengths and widths with minimal downtime.
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Smart Touchscreen PLC Interface: Centralized electrical cabinet with intuitive HMI touchscreen allows operators to easily set batch quantities, cut lengths, feed speeds, and monitor real-time system diagnostics.
Production Workflow
Major System Components
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Uncoiler / Decoiler Unit: Heavy-duty structure with hydraulic expansion and hold-down arm for safe and smooth coil payout.
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Precision Leveler / Straightener: Multi-roll configuration supported by heavy-duty backup rollers to maximize rigidity and flattening capability.
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Servo Feeder & Shear Assembly: Synchronized high-speed mechanical or hydraulic shear ensuring high SPM (strokes per minute) and clean cuts.
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Heavy-Duty Belt Conveyor: Smooth transport section designed for surface preservation and continuous material flow.
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Adjustable Drop Stacking Table: Heavy-frame stacker with adjustable side and end guides for neat, automated sheet bundling.
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Electrical & Hydraulic Control Console: Main control cabinet with PLC, AC servo drives, hydraulic power pack, and safety interlocks.
Technical Specifications Table
| Parameter | Standard Range / Technical Specification |
| Applicable Materials | Cold Rolled Steel (CRS), Hot Rolled Steel (HRS), Galvanized (GI/GL), Stainless Steel, Aluminum, Silicon Steel |
| Material Thickness | 0.3 mm – 3.0 mm / 0.5 mm – 4.0 mm (Customizable up to 12 mm+) |
| Coil Width Range | 300 mm – 1600 mm (1250 mm / 1500 mm / 2000 mm options available) |
| Max Coil Weight | 5,000 kg – 15,000 kg (5T to 15T) |
| Cutting Length Range | 300 mm – 6,000 mm (Extended length optional) |
| Length Accuracy | ±0.3 mm (At L=2000mm) / ±0.2 mm (High-precision option) |
| Diagonal Tolerance | ±0.5 mm (Squareness guarantee) |
| Max Line Speed | Up to 40 m/min (Standard) / 60 m/min (High-speed) |
| Leveling Rollers | 11 to 21 precision rollers with backup support |
| Control System | Delta PLC Touch Screen HMI |
Applications & Target Industries
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Automotive Stamping & Body Panels
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Home Appliance Cabinets (Refrigerators, Washers, AC Units)
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HVAC Systems & Air Ducting
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Steel Service Centers & Metal Distribution
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Electrical Enclosures & Server Cabinets
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Building Construction & Roofing Sheet Fabrication