Automated Sheet Metal Storage System – Herochu Intelligent Retrieval & Feeding

Sheet metal storage is a chronic challenge in fabrication shops. Stacks of raw material occupy valuable floor space, require dangerous manual retrieval, and create delays when the required gauge or alloy is buried under heavier plates. Traditional cantilever racks or vertical storage towers still rely on fork lifts or overhead cranes to retrieve individual sheets—a slow and risky process. Herochu introduces a complete automated sheet metal storage system that integrates high‑density shelving with an intelligent three‑axis retrieval robot. This system not only stores sheets but also automatically feeds them to laser cutters, punches, or shears, creating a seamless just‑in‑time material flow.

Components of the Herochu Automated Sheet Metal Storage System

A fully functional automated sheet metal storage system consists of three subsystems working in coordination:

1. Storage structure – Customizable drawer‑type shelves, telescopic cantilever racks, or heavy‑duty pallet stands. Designed to hold sheet sizes from 0.5 m × 1 m to 2 m × 3 m, with load capacities per shelf up to 3000 kg.

2. Retrieval robot – Herochu’s three‑axis robot (100/200/300 kg payload) equipped with specialized grippers for metal sheets. The robot moves along the storage aisle or is mounted on a linear track.

3. Control software – Manages inventory, tracks sheet location by material type, thickness, and dimensions, and schedules retrieval based on production orders.

The system is manufactured by Ji’nan Constant Storage Machinery Manufacturing Co., LTD, a professional warehousing equipment manufacturer integrating R&D, production, sales, installation, and service. The brand name Herochu appears on every robot and control panel.

Why Automate Sheet Metal Storage?

Shops that rely on manual retrieval experience these pain points:

• Safety incidents: Sheets sliding from racks cause crushing injuries. Forklift collisions with storage racks are common.

• Damage to sheets: Dragging a sheet from the middle of a stack scratches both the retrieved sheet and the ones below.

• Lost time: Workers spend up to 30% of their shift searching for the correct sheet or moving other stacks to access the needed one.

• Low space utilization: Aisles must be wide enough for forklifts, reducing storage density by 40–50%.

Herochu’s automated sheet metal storage system solves all these issues. The robot retrieves sheets directly from any designated location, moves them smoothly without dragging, and delivers them to the processing machine—all under computer control.

Technical Specifications of the Retrieval Robot

The robot’s X/Y/Z working ranges can be selected from 50 mm to 300 mm cubes, depending on the required fine positioning. For storage applications, the robot typically uses a larger gross motion (provided by the arm span of 2700 mm) and then fine‑tunes the pick position using the working range.

Storage System Configurations

Drawer‑Type Sheet Metal Storage Shelves

Each drawer supports a single sheet or a small stack. The robot opens the drawer, picks the top sheet, and closes the drawer. This configuration offers the highest protection against scratching because sheets do not slide against each other. Drawer shelves are ideal for pre‑painted or stainless steel sheets. Herochu customizes drawer width, depth, and number of levels based on available ceiling height.

Telescopic Cantilever Storage Shelves

For high‑density storage of multiple sheet sizes, telescopic cantilever arms extend to present the sheet to the robot. These shelves are commonly used for aluminum plates and mild steel sheets. The cantilever arms can be spaced vertically as close as 150 mm, allowing storage of up to 20 sheets in a 3‑meter height.

Heavy‑Duty Sheet and Pipe Storage Shelves

Hybrid systems that store both sheets and round pipes. For sheet metal shops that also process tubes (e.g., for laser tube cutters), Herochu integrates pipe cradles alongside sheet shelves. The same robot can be equipped with a dual gripper (vacuum for sheets, V‑jaw for pipes) to handle both material types.

How the Automated System Works: Step‑by‑Step

1. Production order entry: The operator enters the required sheet material (e.g., 2 mm thick, 1500×3000 mm, hot‑rolled steel) into the control system.

2. Inventory lookup: The system identifies the storage location (e.g., drawer 7, level 3).

3. Robot navigation: The Herochu robot moves to that location. If the robot is mounted on a linear track, it travels along the aisle. If stationary, the base rotation axis (360°) aligns the arm with the storage bay.

4. Sheet retrieval: The robot extends its Z‑axis (linear), lowers the gripper, activates vacuum or closes the clamp, and lifts the sheet. The sprocket chain lift provides smooth, jerk‑free vertical motion.

5. Transfer: The robot rotates and extends to place the sheet onto a de‑stacking table, conveyor, or directly onto the laser cutter bed. The repositioning accuracy of ±0.05 mm ensures the sheet lands exactly where needed.

6. Inventory update: The system decrements the count for that material and can automatically reorder when stock falls below a threshold.

All cycles are completed in under 60 seconds for typical sheet sizes, including travel time.

Advantages Specific to Automated Sheet Metal Storage

Space Utilization Improvement

Manual storage requires wide forklift aisles—typically 3.5 to 4 meters. Herochu’s automated sheet metal storage system uses a robot that requires only 1.2 meters of aisle width (the robot’s base width). This reduction allows adding more storage rows or reducing building footprint. For a 1000 m² shop, converting to automated storage can free up 300–400 m² for additional production equipment.

Inventory Accuracy

Manual tracking with clipboards or basic spreadsheets leads to misplacements—“lost” sheets that are actually in the wrong rack. Herochu’s system uses barcode or RFID tags on each shelf and sheet. The robot can perform a full inventory scan in less than an hour, identifying every sheet’s location and condition.

Reduction in Material Damage

Sheets stored vertically in cantilever racks often develop edge dings from collision with fork tines. Sheets stored flat on pallets develop scratches from sliding. Herochu’s vacuum gripper picks sheets cleanly from the top, never touching the sheet’s face. The mechanical clamp (for thicker plates) grips only the edge within a designated “sacrificial” zone. As a result, usable sheet yield increases by 2–5%, directly improving profit margin.

Integration with ERP and MES

Herochu’s automated sheet metal storage system includes an API for connection to enterprise resource planning (ERP) and manufacturing execution system (MES) software. Production schedules automatically trigger sheet retrieval. The system can prioritize sheets by “first in, first out” (FIFO) to prevent material aging or oxidation.

Installation and Support

Ji’nan Constant Storage Machinery Manufacturing Co., LTD provides turnkey installation. The process begins with a site survey to measure floor flatness, ceiling height, and existing machine positions. Storage shelves are fabricated to custom dimensions. The Herochu robot is delivered pre‑assembled, tested with video outgoing‑inspection, and installed within 3–5 days. Operator training takes two days. The 1‑year warranty covers all core components including gears, servo motors, and controllers. After‑sales support includes remote diagnostics and spare parts stocking.

Economic Analysis

Consider a shop with 500 tons of sheet metal inventory (mix of 1–10 mm thickness). Annual material throughput: 2000 tons. Manual retrieval costs: 1.5 full‑time employees at $60,000/yeareach=$90,000 labor + $15,000forkliftoperatingcost=$105,000/year. Floor space value: 500 m² at 200/m2/year=200/m2/year=100,000. Scrap from damage: 3% of material value, on $1.5millionmaterialcost=$45,000. Total manual cost = $250,000/year.

A Herochu automated sheet metal storage system (including shelves and robot) costs approximately $180,000installed.Paybackperiod:8.6months.Overfiveyears,netsavingsexceed$1 million.

Conclusion

The Herochu automated sheet metal storage system transforms how fabrication shops manage raw material. By combining high‑density shelving (drawer, cantilever, or hybrid) with a purpose‑built three‑axis retrieval robot (100–300 kg payload, ±0.05 mm accuracy, 360° rotation), the system eliminates manual searching, reduces floor space needs, and prevents sheet damage. For any metal fabricator seeking to move toward Industry 4.0, Herochu provides a proven, scalable, and quickly amortized solution.