Multi-tower single-row intelligent three-dimensional sheet material storage

Metal fabrication shops and sheet metal processing lines face a persistent challenge: storing large volumes of sheet materials of varying dimensions, thicknesses, and alloys without sacrificing floor space or retrieval speed. Traditional racking systems require wide aisles for forklifts, rely on manual record-keeping, and often lead to inventory mismatches or damaged material edges. Herochu has engineered a direct response to these pain points—the Multi-Tower Single-Row Intelligent Three-Dimensional Sheet Material Storage system. This solution merges vertical density with horizontal accessibility, creating a storage architecture that operates as both a warehouse and a just-in-time dispatch hub.

The fundamental innovation lies in the multi-tower, single-row layout. Unlike conventional multi-row shelving that demands multiple access aisles, Herochu configures several independent storage towers in a single linear row. Each tower functions as a vertical silo with multiple layers, while a single automated handling unit travels along the row to serve all towers. This design eliminates the wasted space of back-to-back aisles and reduces the floor footprint by approximately 60% compared to standard pallet racks. For a typical factory with a 4000×2000 mm sheet size requirement, the Herochu HC-S4020-4-105 model provides four storage towers, each capable of holding up to ten layers (customizable) with a per-level load capacity of 5000 kg. The clear space between layers is set at 240 mm as standard, adjustable to accommodate thicker material stacks.

Intelligent three-dimensional storage in the Herochu system goes beyond simple stacking. Each tower compartment is equipped with weight sensors and optical position detectors that communicate with a centralized PLC controller. When an operator or an ERP command requests a specific sheet type—say, 3 mm galvanized steel of 3000×1500 mm dimensions—the system instantly calculates the shortest retrieval path. The material cart, fitted with a precision telescopic fork and vacuum-assisted gripping, travels horizontally along the row at a transfer speed of 5–15 m/min (user-configurable), then lifts vertically to the exact layer. Repeatability is held within ±1 mm, ensuring that sheets are extracted without edge collisions. The entire cycle, from command to delivery at the unloading conveyor, typically takes under 90 seconds.

Real-time digital inventory sets this Herochu solution apart from dumb storage towers. Every inbound sheet is automatically measured for length, width, and thickness using laser sensors at the entry station. Weight is recorded via integrated floor scales. The system then assigns the sheet to an optimal tower location based on size and material type, minimizing fragmentation. Operators view live data on a 10-inch PLC touchscreen: available slots, occupied positions, material dimensions, individual sheet weights, and total tower load. Because the inventory is digital, physical cycle counting becomes obsolete. The Herochu system can generate daily usage reports, alert supervisors when a material type falls below a reorder threshold, and even predict upcoming shortages based on production schedules pulled from the factory ERP.

Safety and structural integrity are embedded into every component. The towers are fabricated from high-tensile steel with a corrosion-resistant coating—essential for long-term storage of raw metal sheets that may carry residual cutting fluids or humidity. Anti-collision photoelectric sensors line each bay, stopping the material cart instantly if an operator enters the work envelope during automatic retrieval. An emergency stop lanyard runs the full length of the row, and service doors are interlocked with the main power supply. For heavy-gauge applications, the HC-S6020-4-125 model supports 5000 kg per level across four towers, handling sheets up to 6000×2000 mm—typical for shipbuilding or heavy equipment manufacturing.

The Herochu Multi-Tower Single-Row Intelligent Three-Dimensional Sheet Material Storage system also integrates seamlessly with laser cutters, punch presses, and press brakes. A powered roller conveyor at the tower exit aligns with the height of downstream equipment. The operator simply selects a material ID on the touchscreen, and the system delivers the sheet directly to the conveyor. No fork truck, no manual searching, no paper logbooks. For factories running lights-out shifts, the system can be programmed to pre-stage materials for the next four production jobs, automatically rotating between towers to balance wear on the handling mechanism.

When comparing storage density versus accessibility, most solutions force a trade-off. Herochu has resolved that conflict through the multi-tower single-row intelligent three-dimensional architecture. The single row preserves linear accessibility for the automated cart, while the multiple towers multiply storage capacity vertically. A configuration with six towers and twelve layers per tower—such as a custom variant based on the HC-S3015-2-63 platform—can hold over 400 standard pallets of sheet metal within a footprint of just 18 meters in length and 5 meters in depth. That is the equivalent of a conventional warehouse bay three times larger. For plant managers under pressure to expand production without adding building square footage, Herochu delivers a storage solution that fits both the floor plan and the budget.