Vertical Lift Technology

High-Density Storage

Integration with Laser Cutting

Intelligent Control and Software

Safety and Ergonomics

Customization for Specific Needs

Conclusion

The transition to Industry 4.0 requires more than individual automated machines – it demands integrated material flow from receiving to shipping. The Fully Automatic PLC-Controlled Steel Automated Storage Warehouse from Herochu serves as the central nervous system for sheet metal inventory in a digital factory. Every movement, every inventory update, and every material transfer happens under programmable logic controller (PLC) supervision, with no manual intervention required for routine operations.

What distinguishes the Herochu Fully Automatic PLC-Controlled Steel Automated Storage Warehouse from conventional vertical lifts is its complete automation envelope. The system does not simply store sheets and wait for an operator to request them. Instead, it monitors production line consumption in real time, pre-stages the next required material, and automatically rotates inventory based on FIFO (first-in-first-out) or FEFO (first-expiry-first-out) rules. For steel service centers that process multiple customer orders simultaneously, this intelligence eliminates the common problem of pulling the wrong gauge or alloy.

The control architecture centers on a high-performance PLC that manages all axes of motion: vertical lift, horizontal carriage travel, and tray extraction. Communication protocols include Ethernet/IP, Profibus, and Modbus TCP, ensuring compatibility with any industrial network. The PLC executes safety routines continuously – if a sensor detects an obstruction, the system stops within milliseconds. This safety integrity level (SIL) meets international standards for automated warehousing equipment.

Capacity specifications demonstrate the industrial-grade engineering. Each storage layer holds up to 1800 kg, and the total system weight capacity scales linearly with the number of trays. A typical configuration of 20 trays stores 36 metric tons of steel. The vertical lifting speed of 9 m/min and horizontal transfer speed of 12 m/min provide throughput of 15 to 20 full cycles per hour, depending on travel distance. For high-volume operations, multiple towers can operate in parallel under a single supervisory controller.

The WMS integrated into the Fully Automatic PLC-Controlled Steel Automated Storage Warehouse goes beyond simple location tracking. It maintains a complete audit trail of every sheet: supplier lot number, date received, dimensional inspection results, and surface quality grade. When connected to a laboratory information system, the WMS can quarantine non-conforming material automatically. Batch traceability extends from the mill certificate to the finished part, enabling root cause analysis if a customer reports a quality issue months later.

ERP connectivity transforms inventory management from a periodic reconciliation task into a continuous process. As sheets enter the Herochu system, the WMS sends an inbound transaction to your ERP. As sheets exit to the laser cutting machine, the WMS debits inventory automatically. Cycle counting becomes obsolete because the system maintains perpetual accuracy. For publicly traded manufacturing companies, this level of inventory control improves balance sheet reliability and reduces audit fees.

The robotic handling option makes the warehouse truly unmanned. An autonomous gantry or articulated robot picks sheets from the storage tower’s exit station and delivers them to the laser cutting machine bed. The robot is aware of the cutting schedule – it knows which sheet goes to which job and in what sequence. After cutting, the robot can retrieve skeletal remnants and return them to the Herochu system for future use if the remnants meet size requirements. This closed-loop material flow is the definition of black light factory operation.

Application scenarios for the Fully Automatic PLC-Controlled Steel Automated Storage Warehouse include high-volume automotive stamping plants, appliance manufacturing lines, and metal service centers with just-in-time delivery commitments. In a stamping plant that consumes 100 tons of steel per day, the Herochu system maintains a buffer of three shifts of inventory, automatically replenishing from a central warehouse every eight hours. Production never stops because a forklift driver took a break or misread a picking list.

Energy efficiency receives careful attention in the Herochu design. The PLC implements regenerative braking on the vertical lifting motor, recovering energy during descent. Standby power consumption falls below 100 watts when the system is idle. Compared to operating a forklift that consumes diesel or battery power for every movement, the automated storage warehouse reduces energy cost per ton of material handled by approximately 70 percent.

Installation respects the realities of existing workshops. The assembly-type structure arrives in modular sections that fit through standard industrial doorways. A team of two Herochu technicians typically completes installation and commissioning within five working days. The system does not require special foundation preparation – any concrete floor rated for 5 tons per square meter or higher is sufficient. For factories that relocate or reconfigure production lines, the Herochu system can be disassembled and reassembled at the new location.

Training requirements for the Fully Automatic PLC-Controlled Steel Automated Storage Warehouse are minimal. The touchscreen HMI presents all functions through pictograms and simple language selection. Operators learn basic material receiving and removal in under two hours. Maintenance personnel receive training on PLC diagnostics and mechanical adjustments, but routine maintenance is limited to cleaning optical sensors and lubricating guide rails every 500 operating hours.

Herochu has deployed this system across multiple industries, including shipbuilding suppliers, construction equipment manufacturers, and precision sheet metal job shops. Each installation includes a first-year remote monitoring service where Herochu engineers track system performance and proactively alert the customer to any deviation from normal operation. This predictive maintenance approach prevents unplanned downtime and extends component life.

For manufacturing executives evaluating automation investments, the Fully Automatic PLC-Controlled Steel Automated Storage Warehouse represents the most direct path to unmanned material handling. It solves the last remaining manual step in many sheet metal fabrication lines – the retrieval and staging of raw material. With Herochu’s proven technology, your factory can run lights-out shifts with confidence that steel will always be ready when the laser needs it.

For sheet metal fabrication shops and high-automation manufacturing lines, the traditional method of ground stacking creates three persistent problems: excessive floor space consumption, chaotic inventory tracking, and slow material turnover. The Herochu automatic sheet metal storage system directly resolves these pain points through a vertical tower architecture combined with PLC-driven automated retrieval. Unlike flat storage where operators walk long distances to locate specific gauges or alloys, this system presents any required sheet at the unloading station within seconds.

The automatic sheet metal storage system from Herochu operates on a simple principle: store vertically, retrieve horizontally. Each tower accommodates multiple trays, with each layer rated for up to 1800 kg of material. The vertical lifting mechanism travels at 9 meters per minute, while the inlet and outlet speed reaches 12 meters per minute. For a typical workshop storing 50 tons of steel sheets across 30 different thicknesses, this translates to an average access time under two minutes – a reduction of more than 80 percent compared to forklift-dependent ground stacking.

Herochu engineered this system with a welded steel frame that bolts together in an assembly-type structure. This modularity means the height, tray dimensions, and load capacity can be customized to match your specific sheet sizes and ceiling clearance. Factories with low overhead space can deploy shorter towers, while those with high bay warehouses can stack up to ten layers or more. The pressure rating of 667 kg per square meter on each pallet ensures that even dense materials like hardened steel plates do not deform the tray structure over years of use.

Inventory management transforms from a weekly manual counting exercise into a real-time digital operation. The built-in Warehouse Management System (WMS) supports instant query by batch number, material grade, or incoming date. When a coil or sheet enters the system, scanning automatically assigns a storage location. The accuracy rate reaches 100 percent – no misplaced plates, no double-stacked pallets blocking access, and no expired material sitting forgotten in a corner. For quality-sensitive industries such as automotive stamping or aerospace component manufacturing, this traceability alone justifies the investment.

Integration with enterprise resource planning (ERP) systems comes standard. The Herochu automatic sheet metal storage system pushes inventory updates to your ERP whenever material is added or removed. Production planners can see exactly how many sheets of 2mm stainless steel remain without walking to the warehouse. The system can also connect to MES platforms, enabling automated material requisition based on production schedules. When the laser cutting machine finishes a job, the next sheet type is already staged.

Labor reduction is another measurable benefit. Traditional flat storage of multi-specification sheets often requires two or three dedicated forklift operators plus a material coordinator. The Herochu system allows a single operator to manage multiple towers simultaneously. For unmanned factory operations – often called “black light factories” – the optional robotic handling module performs autonomous loading and unloading. Sheets move from the storage tower to the laser cutting table without any human contact, eliminating both labor costs and the risk of forklift-related accidents.

The application scenario that fits this system best is the high-mix, low-volume production environment. Custom metal fabricators who process dozens of different sheet types each day suffer the most from ground stacking inefficiency. With the Herochu automatic sheet metal storage system, changeover time between materials drops to near zero. The operator selects the next sheet type from the WMS interface, and the system delivers it to the exit station while the current cutting job finishes.

Surface quality protection deserves special attention. Manual handling with lifting clamps or forklift forks inevitably leaves scratches, dents, or edge burrs on sensitive materials like brushed stainless steel, aluminum, or pre-coated sheets. Herochu’s zero-damage handling design eliminates this risk. The extractor mechanism contacts only the bottom edge of the sheet, leaving the top surface untouched. For factories that supply visible exterior panels or decorative architectural metal, this feature reduces scrap rates from surface defects by up to 90 percent.

Durability is built into every component. The guide rails undergo precision machining to achieve millimeter-accurate positioning. PLC controllers from leading industrial automation brands ensure maintenance-free operation for years under three-shift production schedules. Limit blocks and optical sensors prevent over-travel, protecting both the stored sheets and the machine structure. Herochu offers a standard warranty on structural components, with extended service contracts available for high-throughput facilities.

To quantify the return on investment: a typical metal fabrication shop with 500 square meters of storage area can reduce that footprint to 125 square meters using vertical towers. That recovered floor space often houses an additional laser cutting machine or secondary operation station. Combined with labor savings of one full-time equivalent employee per shift and reduced material damage, payback periods of 12 to 18 months are common. For new facility construction, the reduced building footprint lowers capital costs substantially.

The automatic sheet metal storage system from Herochu is not a generic warehouse rack. It is a purpose-built solution for sheet metal processing, designed from the ground up to handle the unique challenges of large-format thin sheets, heavy gauge plates, and the need for seamless integration with downstream automation. Whether you operate a job shop, a high-volume stamping plant, or a just-in-time manufacturing cell, this system delivers measurable operational improvements from day one.