Fiber Laser Material Handling System

When fabricators evaluate automation, they often focus on the laser source or the cutting head. The Fiber Laser Material Handling System from Herochu operates behind the scenes, yet it determines whether a machine runs at 45% utilization or 85%. This system synchronizes vertical storage, gantry loading, and finished-part discharge into a single PLC-controlled workflow. It is the infrastructure that transforms a standalone laser cutter into a production cell capable of running unattended through the night.

The Anatomy of Continuous Flow

A fiber laser cutting cycle has three phases: raw sheet introduction, cutting, and removal of finished parts and skeleton. Manual operations serialize these phases. Herochu’s material handling system parallelizes them. While the laser is cutting, the gantry has already retrieved the next sheet from the storage tower and positioned it at the load station. The finished material cart, a double-layer shuttle, sits ready to receive the completed skeleton the moment the cutting head retracts. The exchange becomes a choreographed sequence measured in seconds rather than minutes.

This parallelism depends on communication between the material handling PLC and the laser’s CNC. Herochu integrates through standard interfaces compatible with major laser OEMs, confirming bed clearance, cycle completion, and clamping readiness before initiating any movement. The system does not guess; it verifies.

Storage That Actively Participates

Traditional sheet storage is passive—a rack that holds material until someone retrieves it. The Herochu storage tower functions as an active buffer. With eight to thirteen vertical levels and per-layer capacities of 3,000 to 5,000 kg, it maintains a buffer of raw stock and finished work in progress. The warehouse management logic tracks every sheet movement, alerts operators when raw stock falls below threshold, and sequences retrievals according to the nesting schedule. For high-mix, low-volume shops, this eliminates the daily ritual of searching for the right gauge and alloy.

Surface Protection as an Engineering Requirement

Fiber laser cutting serves industries where surface finish matters: appliance panels, architectural metalwork, medical equipment enclosures. A single scratch from a carelessly positioned vacuum cup can scrap a finished part before it reaches the press brake. Herochu’s loading manipulator uses soft-compound vacuum cups distributed across a matrix, applying uniform holding force without localized pressure points. For aluminum with protective film, vacuum pressure is reduced and acceleration curves softened through programmable material recipes. The same system that handles 20 mm carbon steel can switch to 1 mm film-covered aluminum without manual adjustment of cup configuration.

Technical Specifications at a Glance

The material handling system operates within a defined performance envelope:

• Sheet dimensions: 3000×1500 mm to 6000×2500 mm, depending on model

• Maximum sheet weight: 500 kg for the loading arm

• Transfer speed: 5–15 m/min for storage retrieval; 10–30 m/min for gantry traverse

• Positioning repeatability: ±2 mm across the gantry stroke

• Air supply requirement: 0.6–0.7 MPa

• Storage capacity: 8–10 layers standard, customizable

These parameters reflect the system’s role as a production tool, not a laboratory device. The ±2 mm repeatability ensures that sheets land consistently against the laser’s alignment stops, cycle after cycle, without operator correction.

Safety and Fail-Safe Design

Unattended operation demands fail-safe logic. The Herochu system incorporates spring-applied mechanical brakes that engage on power loss or air pressure drop below 0.4 MPa. Perimeter fencing and interlocked access doors isolate the movement zone during automatic cycles. When a fault occurs—a double-sheet detection, a vacuum pressure deviation, a positioning error—the PLC halts movement, logs the event, and displays a diagnostic code on the HMI. Restarting requires acknowledgment and correction, not a full re-initialization.

Conclusion

The Fiber Laser Material Handling System is not a peripheral accessory. It is the engine that converts fiber laser speed into actual throughput. Herochu engineers each system around the customer’s laser models, floor plan, and material mix, delivering a material flow solution that runs as reliably at 3 a.m. as it does at 3 p.m.

1. Automatic Laser Material Handling & Storage Warehouse

• 1-to-2 Multi-Machine Architecture: A single gantry unit can serve two vertical storage towers and two separate laser cutting beds, drastically increasing output per square meter of shop floor.
• PLC & HMI Automation: The system logs every movement, alerts operators when to replenish raw stock, and automatically selects the exact palette required for upcoming jobs.
• Precision Placement: Achieves a positioning repeatability of ±2 mm across a gantry traverse speed of 10–30 m/min, ensuring sheets land precisely where the cutting head expects them.
• Continuous Flow: Raw plate retrieval occurs in parallel while the laser completes its current cut cycle.

• Multi-Machine Synchronization: Coordinates material flow across multiple laser stations simultaneously without cross-aisle traffic or safety hazards.
• Surface Protection: Incorporates soft-touch vacuum arrays that prevent scratches, gouges, or edge deformations on sensitive alloy surfaces.
• Footprint Optimization: Reclaims up to 70% of floor space by stacking raw materials vertically in multi-tier racks (8 to 13 levels high) rather than spreading pallets horizontally across the factory floor.
• Integrated Customization: Easily retrofits into existing workshop layouts with 3-D layout planning, custom rail lengths, and tailored weight capacities.

1. Z-Axis Micro-Flexing: The Z-axis manipulator applies a controlled micro-bending force to the sheet edge to break vacuum seal/oil adhesion between stacked plates.
2. Compressed Air Injection: Precision nozzles inject air at 0.6–0.7 MPa between plates to separate stuck sheets.
3. Thickness Sensor Verification: Mechanical and electronic thickness sensors verify single-sheet isolation before the gantry moves toward the laser bed.
4. Independent Vacuum Zone Control: Each vacuum cup operates on an independent control switch. For nested sheets or plates with cutouts, inactive zones automatically shut off to maintain vacuum integrity without pressure bleed.

• Dual End-Effector Mechanism:
• Vacuum Suction Matrix: Uses gentle, distributed force with soft-compound vacuum cups for loading raw sheets without marring aluminum surfaces or tearing protective films.
• Mechanical Gripper System: Uses positive mechanical engagement to grab, drag, and unload cut skeletons and finished parts from the cutting bed without disturbing small nested parts.
• Material-Specific Recipes: Operators switch between presets on the HMI touchscreen. The PLC automatically adjusts vacuum pressure levels, Z-axis acceleration curves, and air injection parameters based on the material selected:
• For Aluminum: Lower vacuum pressure, softer contact, gentle acceleration.
• For Heavy Carbon Steel: High vacuum suction, aggressive air-blast separation, high torque lifting.
• Composite Truss Construction: Built on a dual-girder composite truss gantry structure mounted on guidance rails, delivering rigid travel over long strokes (up to 50 meters).

• Manufacturer: Herochu (Jinan Constant Storage Machinery Co., Ltd.)
• Primary Applications: Automated sheet metal handling, fiber laser cutter loading/unloading, vertical sheet storage, automated warehouse integration.
• Target Industries: Aerospace, automotive manufacturing, sheet metal fabrication shops, electrical enclosure manufacturing, logistics, heavy equipment.
• Key Operational Modes: Fully Automatic (PLC scheduled), Manual/Touchscreen Override (for custom single-sheet setups).