Herochu Sheet Material Handling Automation for Laser Cutters: Core Technical Highlights

1. Bridging the Production Automation Gap While modern fiber laser cutting machines operate at extreme cutting velocities, manual material handling often caps machine utilization at 50%–60%. Herochu’s intelligent material handling solutions bridge this gap by transitioning sheet loading and unloading into an autonomous, parallel background process. This automation maximizes machine utilization to over 85% and facilitates fully unattended, lights-out night shifts.

2. High-Speed Motion and Precision Positioning Herochu’s gantry loader traverses at horizontal speeds up to 50 m/min. To accommodate specific storage layouts, a pneumatic rotary axis executes a 90-degree in-air sheet rotation mid-transit, avoiding dedicated floor reorientation stations. Driven by high-resolution encoders and closed-loop servo systems, the gantry achieves sub-millimeter repeated positioning accuracy. This precision ensures that physical sheet placement perfectly matches programmed nested layouts, eliminating scrap caused by misalignment and protecting laser bed slats.

3. Adaptive Zoned Vacuum End-Effector Standard vacuum lifters struggle with perforated geometries. Herochu utilizes a segmented, zoned vacuum suction matrix managed via a Siemens PLC. For raw plates, all zones engage for maximum force. For cut part nests or delicate scrap skeletons (where 40%–60% of material is removed), the system activates only the vacuum sectors making contact with solid web structures. Non-contact zones remain sealed to prevent pressure loss. Continuous pressure monitoring ensures grip integrity during transit.

4. Double-Sheet Detection and Separation Oil-film surface tension often causes stacked sheets to stick together, risking machine damage. Herochu incorporates a multi-stage separation cycle: the Z-axis applies a localized micro-flexing force to lift and bend the sheet edge, while compressed air nozzles inject a high-velocity stream into the gap. Before translation, integrated load cells and thickness sensors verify the sheet weight against active job parameters, blocking double-sheet errors.

5. One-to-Two Multi-Machine Parallel Loop Efficiency peaks in a one-to-two layout where a single gantry feeds two parallel laser cutters. Since gantry cycle times are faster than laser cutting cycles, the handling system clears skeletons and reloads one machine while the other is cutting. Material handling is completely removed from the critical path, turning material flow into an uninterrupted background service.

6. Control and Warehouse Integration Built on standardized industrial components (Siemens PLC, Omron sensors), the platform tracks performance metrics and interfaces seamlessly with multi-tier vertical cantilever storage towers (8–13+ tiers), maximizing floor space recovery and inventory tracking.