English Views: 0
Shijiazhuang Faith Machinery Co.,Ltd offers Hot Rolled Strip Slitting Lines designed to process thicker, wider steel coils for heavy-duty fabrication, construction components, and large machinery parts. These lines are engineered for robust performance under high tensions and temperatures inherent to hot-rolled materials, delivering precise slit widths and stable coil builds even at elevated throughput rates.
The line configuration starts with a heavy-duty coil car and mandrel-expansion decoiler capable of handling coils up to 50 tons. Leading guide rollers with polyurethane sleeves prevent coating removal when processing galvanized or painted hot-rolled strip. A hydraulic tension leveler downstream of the decoiler features multiple flat and crowned rolls; hydraulic crown control compensates for strip camber and ensures uniform stress distribution across the metal.
In the slitting section, upper and lower knife shafts carry tungsten-hardened rotary knives that can cut strip thicknesses from 1.2 mm to 12 mm. Knife spacing is adjusted via servo-actuated slide rails with position feedback to achieve slit widths ranging from 20 mm to 1,200 mm. During operation, torque sensors monitor cutting forces, and the PLC adjusts knife gap increments as strip properties vary to maintain clean edges.
The recoiling system employs disc-type mandrel recoilers with integrated dynamic braking to handle the high inertia of heavy-gauge strips. A multi-axis coil transfer system moves completed coils to secondary stations without interrupting the main slitting line. Edge-trim conveyors and scrap bundlers collect waste strips for recycling, while ink-jet coders mark coil IDs, slit widths, and production dates for inventory traceability.
Shijiazhuang Faith Machinery’s service offering includes factory acceptance testing with customer-supplied hot-rolled coils, on-site installation supervision, and start-up training. A maintenance plan covers regular calibration of load cells, inspection of leveler rolls, and replacement of knife elements. Remote diagnostic capabilities allow rapid fault identification and parameter adjustments, helping minimize unplanned downtime and sustain consistent line performance.
