Sheet metal inventory is one of the most difficult categories to manage in a fabrication plant. Plate stock arrives in bundles, sits in racks identified by handwritten tags, gets pulled for jobs based on whoever remembers which stack contains the right gauge and grade, and requires periodic physical reconciliation. The PLC Touch Control 3D Vertical Stock System from Herochu replaces this chaotic workflow with a closed-loop digital-physical inventory engine that delivers real-time visibility, precise control, and seamless integration.

The 3D Vertical Stock Concept

The PLC touch control 3D vertical stock system operates on a three-dimensional storage architecture that maximizes space utilization through vertical stacking while maintaining instant accessibility to every stored sheet. Each tower accommodates multiple storage trays arranged in tiers, with each layer engineered to support substantial loads. Standard configurations range from 8 to 13 floors, expandable up to 15 to 20 levels depending on ceiling height and throughput requirements.

This three-dimensional approach transforms storage economics:

• Density far exceeding traditional racking or ground stacking

• Accessibility to every sheet without moving other materials

• Organization by material type, gauge, and job priority

• Scalability to accommodate growing inventory requirements

PLC Control Architecture

At the heart of the 3D vertical stock system is a sophisticated Programmable Logic Controller (PLC) combined with an intuitive touchscreen interface. The PLC serves as the system’s central nervous system, coordinating all storage and retrieval operations with precision and reliability.

Key control capabilities include:

One-touch operation enables operators to instantly locate, retrieve, or store plates through simple touchscreen commands. Workers can quickly locate and retrieve specific plates without manual searching, reducing downtime and labor costs.

Real-time inventory visibility provides complete information on every sheet stored in the system—material type, gauge, dimensions, weight, and precise location within the 3D stock tower.

Automated weight detection ensures that each storage layer is never overloaded, preventing potential damage to both equipment and materials. Weight sensors verify stock after each retrieval, maintaining accurate inventory records.

Touchscreen Interface and User Experience

The 15-inch industrial touchscreen HMI provides an intuitive, user-friendly interface that minimizes training requirements and reduces operational errors. Operators can:

• View real-time stock levels and material locations

• Select programs and retrieval rules with two taps

• Monitor system status and performance metrics

• Generate inventory reports and consumption data

• Access system diagnostics and maintenance information

Even staff with minimal training can quickly master the system, reducing onboarding time and operational disruptions. The color-coded touchscreen displays provide visual management of inventory status, making it easy to identify material availability and location at a glance.

ERP and MES Integration

The PLC touch control 3D vertical stock system communicates natively with ERP and MES layers, enabling automated material reservations, production scheduling based on available inventory, and real-time consumption reporting. Every action in the storage system—every storage, retrieval, and inventory adjustment—is automatically reflected in the enterprise systems.

This integration delivers several critical capabilities:

Automated material reservations ensure that materials are reserved for upcoming production orders, preventing stockouts and production delays.

Production scheduling optimization uses real-time inventory data to schedule jobs based on available materials, reducing setup times and changeover delays.

Consumption reporting automatically updates inventory records as materials are consumed, eliminating manual data entry and reconciliation.

Full traceability from receipt through consumption enables complete material genealogy, supporting quality management and regulatory compliance.

Technical Specifications and Performance

The PLC touch control 3D vertical stock system delivers impressive technical performance across multiple dimensions:

The system’s heavy-duty chain drive with linear guide rails delivers smooth, precise motion for consistent uptime. 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, a requested plate can be delivered to the unloading station in under 90 seconds.

Safety and Material Protection

The PLC touch control 3D vertical stock system incorporates multiple layers of safety and material protection:

Emergency stop buttons and limit switches prevent overloading and unsafe operation. The system automatically detects weight and prevents operation if load limits are exceeded.

Roller tracks at both ends of each pallet enable easy movement even when fully loaded, with additional positioning safety devices ensuring secure, reliable operation.

Dedicated adjustable supports cradle each sheet to prevent surface scratching and internal stress. Fire-resistant coatings are available for high-temperature environments.

Blackening treatment on traveling wheels and axles prevents rust and corrosion, extending service life in demanding industrial environments.

Operational Benefits and ROI

The PLC touch control 3D vertical stock system delivers measurable operational improvements that translate directly to bottom-line results:

• Space savings of up to 85 percent compared to ground stacking

• Labor cost reduction of up to 70 percent through automation

• Material handling time reduction of up to 80 percent

• Throughput increase of 40 to 60 percent for downstream equipment

• Inventory accuracy approaching 100 percent through automated tracking

• Forklift traffic reduction of up to 70 percent, improving safety

Quality and Certification

Herochu’s PLC touch control 3D vertical stock systems are CE and ISO 9001 certified. Manufactured in a 10,000-square-meter facility with full pre-shipment load testing and global on-site installation support, each system is validated to meet rigorous performance standards before delivery.

Herochu (Jinan Constant Storage Machinery Co., Ltd.) specializes in advanced intelligent storage and retrieval systems (AS/RS) and customized industrial racking for sheet metal processing and manufacturing facilities. By replacing hazardous, space-consuming floor stacking with vertical and automated warehousing, these systems maximize space utilization, accelerate production workflows, and minimize workplace risks.