Electric Drawer-Type Sheet Metal Storage System

Sheet metal fabrication shops, steel service centers, and heavy plate processing facilities operate under constant pressure to improve material flow, protect inventory quality, and maximize every square meter of available floor space. Traditional storage methods—flat floor stacking, conventional cantilever racks, or static shelving—leave materials vulnerable to surface damage, make retrieval slow and labor-intensive, and consume disproportionate floor area relative to the material they actually hold. The Herochu Electric Drawer-Type Sheet Metal Storage System resolves these limitations by combining motorized drawer extension, heavy structural engineering, and smart control integration into a single, cohesive storage platform.

System Architecture and Design Philosophy

The Herochu storage system is built around the principle that stored materials should come to the operator, not the other way around. Each storage level functions as an independent motorized drawer that extends outward from the rack body on hardened guide rails, presenting the full tray surface at a comfortable working height for direct loading and picking. This approach eliminates the reach-and-retrieve handling pattern that dominates traditional rack storage, where operators must access materials stored deep within the rack interior.

The system is engineered for single-side operation. Because every drawer pulls out for front access, the rack requires only one working aisle. This configuration halves the floor space required compared to double-side access racks of equivalent capacity, freeing workshop area for production equipment, material staging, or additional storage capacity. The footprint reduction is substantial—a six-level rack storing 3000 kg per level can replace a flat-storage area many times its size while keeping every plate organized, visible, and immediately accessible.

Electric Drive and Control Integration

At the core of the system is a frequency-conversion electric drive that powers each drawer’s extension and retraction. The drive incorporates soft-start and soft-stop acceleration profiles, ramping the drawer speed up and down gradually to prevent plate slippage on the drawer surface and to avoid mechanical shock to the rail system. This controlled motion is essential when handling heavy, smooth-surfaced plates that can shift under sudden acceleration.

The control architecture extends beyond the drive itself. Herochu equips the system with wireless remote operation, allowing a single operator to extend or retract any drawer from a safe distance—ideal for crane-integrated workflows where the operator manages both the crane and the storage system simultaneously. Touch-screen human-machine interface panels provide system status, drawer position feedback, and diagnostic information. For facilities with digital infrastructure, the system supports Ethernet connectivity and Warehouse Management System (WMS) integration, enabling real-time inventory tracking, batch tracing, and seamless ERP synchronization.

Structural Engineering for Sustained Loading

The frame is constructed from Q235B high-strength steel, assembled into welded box-beam structures that resist bending and torsion under concentrated loads. A dual-beam crossbar design ties the columns together at each tier, creating a rigid framework that maintains dimensional accuracy even when fully loaded drawers are extended. The base structure is engineered to transfer extension forces back through the frame and into the floor anchoring, keeping the rack plumb and stable throughout its operational life.

Surface protection is specified to match the operating environment. Standard configurations include zinc-coated or powder-coated finishes, with optional Z600 galvanizing for corrosive or high-humidity environments. Replaceable HDPE wear strips line the drawer surfaces to protect sensitive materials—stainless steel, aluminum, pre-coated sheet—from scratches during placement and removal. Rubber-capped dividers can be specified for applications requiring plate-by-plate isolation within a drawer.

Model Configurations and Capacity Range

The Herochu Electric Drawer-Type Sheet Metal Storage System is available in five standard configurations, each customizable to specific material dimensions, layer counts, and load requirements:

Clear space between levels is standardized at 120 mm, adjustable for specific material thickness ranges. All configurations use electric-assisted material discharge. Layer count can be customized from 3 to 13 vertical levels, expanding total storage capacity to match the available building height and the customer’s inventory volume.

Full Extension for Complete Access

Each drawer extends to 100 percent of its depth, exposing the entire tray surface for loading and picking. This full-extension capability is a significant operational advantage over partial-extension systems, where rear portions of the drawer remain inaccessible. With full extension, long or wide plates can be placed evenly across the drawer surface without reaching into the rack interior, and removed quickly when needed for production. The entire tray surface is usable, maximizing storage efficiency per drawer and simplifying material organization.

Heavy-duty rollers and guide rails ensure that each drawer glides out smoothly even when fully loaded and returns securely into position for stable, long-term daily use. The bearing arrangement is specified for sustained cycling at rated load, with maintenance intervals measured in years rather than months under normal operating conditions.

Laser Cutting Line Integration

The system is specifically designed to interface with fiber laser cutting production lines, automated loading and unloading robotic arms, and gantry manipulators. In this configuration, the storage system becomes an integral part of the production flow rather than a standalone storage unit. Plates are stored organized by grade and thickness, retrieved from the extended drawer by crane or vacuum lifter, and transferred directly to the cutting table—reducing intermediate handling, protecting surface quality, and maintaining a consistent material supply to the cutting operation.

This integration capability extends to the control layer. The WMS-compatible architecture allows production scheduling systems to query inventory levels, identify the drawer containing the required material, and trigger drawer extension in sequence with the cutting schedule. This level of integration transforms the storage system from a passive container into an active participant in the production workflow.

Lower Handling Costs Through Design

By combining single-side access with pull-out storage, the system reduces wasted aisle space and eliminates the repeated manual handling that characterizes traditional storage methods. Material is loaded once onto a drawer, stored securely, and picked directly when needed—no intermediate rehandling, no searching through stacks, no material damage from repeated contact. The overall cost of storing bulky sheet materials drops as handling time decreases, inventory accuracy improves, and material waste from surface damage is eliminated.

The Herochu Electric Drawer-Type Sheet Metal Storage System is engineered for facilities that require organized, protected, and efficiently accessible sheet metal storage at industrial scale. From the Q235B frame to the frequency-conversion drive to the WMS integration layer, every component reflects a commitment to sustained performance in the demanding conditions of modern metalworking production.