Steel service centers and metal fabrication workshops face a persistent bottleneck: sheet metal stock scattered across factory floors, consuming valuable square footage while operators spend excessive time searching for the right plate. The Herochu automated vertical plate storage system solves this problem by concentrating an entire sheet metal inventory into a single vertical column and delivering each plate to the operator at the touch of a button.
How the ASRS Tower Restructures Sheet Metal Logistics
The Herochu ASRS tower operates on a straightforward principle. Metal sheets — whether aluminum sheets, iron plates, or steel plates — are loaded into individual trays within a multi-layer vertical steel structure. Each tray sits on its own level, separated from adjacent sheets to prevent surface scratching and deformation during long-term storage. When a specific plate is needed, the PLC touchscreen interface lets the operator select it by size, thickness, or batch number, and the automated lifting system brings that tray to the access opening within seconds.
This one-key delivery mechanism eliminates manual sheet handling from the workshop floor. Instead of forklift drivers navigating narrow aisles to retrieve a single plate from a horizontal rack, the tower brings the material directly to the picking point. The result is a continuous, unmanned retrieval cycle that keeps pace with demanding production schedules.
Technical Architecture and Model Configurations
Herochu offers four standard configurations engineered for different sheet dimensions and throughput requirements:
| Model | Sheet Dimensions | Layers | Max Load per Level |
|---|---|---|---|
| HC-S3015-63 | 3000×1500 mm | 6 (customized) | 3000 kg |
| HC-S4015-85 | 4000×1500 mm | 8 (customized) | 5000 kg |
| HC-S4020-85 | 4000×2000 mm | 8 (customized) | 5000 kg |
| HC-S6020-105 | 6000×2000 mm | 10 (customized) | 5000 kg |
The vertical tower design accommodates sheets up to 6000×2000 mm, making it suitable for large-format plate distributors and heavy fabrication shops. Layer count is customizable, as is the number of towers deployed — a single tower arrangement keeps the complete sheet metal stock in one compact footprint, while multi-tower installations scale capacity for high-volume operations.
Clear space between trays measures 350 mm by default and can be adjusted to match plate thickness variations. The lifting and entry-exit system operates at 5–15 m/min with a repeatability of ±2 mm, ensuring that tray transfer between levels remains smooth and accurate even under continuous daily production loads.

PLC Control and Real-Time Inventory Visibility
At the core of the Herochu automated storage tower sits a PLC touchscreen controller that manages every aspect of classification, storage, and retrieval. The system sorts incoming metal sheets by size, thickness, and material type, then assigns each plate to the appropriate layer and slot. Automatic positioning locates the exact storage position for every sheet, removing the guesswork from inventory placement.
Real-time inventory management displays material dimensions, weight, and quantity on the control screen at all times. A built-in weighing function maintains accurate stock records without requiring separate weighing stations. Operators can query current stock levels at any point during a shift, and the system supports instant inventory counting — a feature that dramatically reduces the labor hours traditionally spent on manual stocktaking for steel service centers.
ERP Integration for Intelligent Warehouse Management
The Herochu ASRS tower connects directly to factory ERP and WMS systems through standard data interfaces. This integration keeps the storage tower and the factory management system on a single, synchronized data set. When a production order calls for a specific plate grade and dimension, the ERP system triggers the tower to retrieve and deliver that exact sheet, supporting material planning for aluminum sheet processing and metal distribution workflows.
Batch traceability tracks every metal sheet from inbound storage to outbound loading, supporting quality control and order verification for metal fabrication workshops. Expiration warnings flag any stock that exceeds a configured storage period, preventing aged material from entering production unnoticed.

Structural Durability and Workshop Integration
The steel structure is engineered for continuous automated sheet handling, with a rigid frame built to withstand repeated loading cycles at full capacity. A powder-coated surface delivers anti-rust performance across every steel layer, while ESD protection adds static discharge safety — a feature particularly valued when storing aluminum sheets in environments where static accumulation can attract dust or interfere with downstream processing.
Loading and unloading stations are fully compatible with factory forklifts, overhead cranes, and other lifting equipment. The integrated conveyor features adjustable legs and leveling feet, allowing the tower to fit into existing material flow lines without extensive floor modifications.
Built for Demanding Metal Workshop Environments
Herochu designs the automated vertical plate storage system for steel service centers, metal fabrication workshops, steel distributors, and aluminum extrusion processors. By concentrating scattered sheet stock into a compact vertical footprint, the tower frees floor space for processing machines, improves workshop tidiness, and removes manual sheet handling from the production equation — a structural shift toward intelligent, unmanned factory workflows.









