Full-Process Automation for Cut-to-Length Lines Leveling Shearing and Stacking

Many sheet-metal processing plants that run cut-to-length lines used to rely on manual attendance at every stage. After decoiling, operators had to manually adjust leveler parameters; for shearing, the cut length was set by hand; and after cutting, several workers had to manually carry and stack the sheets. A whole line required multiple workers working in shifts—not only was production slow, but the cut sheets often had significant dimensional errors, and the stacks ended up crooked and uneven. The full-process automation solution for cut-to-length lines—covering leveling, shearing, and stacking—integrates all steps from coil loading, leveling, cut-to-length shearing, to final stack discharge, eliminating frequent manual intervention throughout the entire process. It enables unattended, continuous operation of the entire cut-to-length line and has now become the preferred upgrade choice for many sheet-processing plants.

In this complete automated system, after the coil is hoisted onto the decoiler, the equipment automatically adjusts decoiling tension, feeding the sheet at a steady speed into the leveling unit. Multiple high-precision leveling rolls automatically adjust their nip clearance according to the material type and thickness, fully flattening the coiled sheet and relieving internal stresses. The resulting flatness fully meets subsequent processing requirements. The leveled sheet then enters a servo-driven cut‑to‑length feed mechanism, which accurately advances the sheet to the preset cutting length. At the exact position, the high‑speed shearing unit automatically activates, making a precise transverse cut. The sheared sheets have clean, burr‑free edges, with dimensional errors kept to an extremely small range. After shearing, the sheets are automatically conveyed along the exit line to the stacking station at the end, where belt conveyors or magnetic conveyors smoothly transfer the sheets onto a receiving trolley for automatic, neat stacking—with no manual handling involved at any point.

Many plants that have implemented this full‑process automation solution report that previously, a cut‑to‑length line required four or five workers stationed at the decoiling, leveling, shearing, and stacking positions respectively. Workers were busy all day long, yet human errors often resulted in inconsistent sheet lengths and messy, tilted stacks. After adopting the full‑process automation solution, workers only need to hoist the coil into place at startup and enter basic parameters—such as sheet thickness, cut length, and stack quantity—on the central control panel. The entire line then runs automatically and continuously, freeing operators from moving between stations and significantly reducing physical labor. Moreover, all process parameters are uniformly managed by the system, so every cut sheet is dimensionally consistent, ensuring excellent product uniformity and eliminating deviations caused by manual operations. The subsequent yield rate improves markedly. When the receiving trolley reaches the preset stack height, the system automatically signals a trolley change, and an empty trolley moves into place, allowing the line to run continuously for extended periods. Production efficiency increases substantially compared to the previous semi‑manual mode.

Guangdong RuiHui Intelligent Technology Co., Ltd. has developed a mature full‑process automation solution for cut‑to‑length lines, covering leveling, shearing, and stacking. RuiHui's technical team customizes the solution based on the customer's sheet types and existing workshop layout. Many plants that have adopted the system report a qualitative leap in both operational smoothness and production efficiency.

For sheet‑processing factories looking to upgrade their cut‑to‑length lines, this full‑process automation solution connects and integrates all previously scattered process steps, achieving efficient and stable operation with minimal labor input. It represents a practical and pragmatic direction for upgrading cut‑to‑length lines.