Heavy Plate Vertical Storage Warehouse ASRS

Introduction to High-Capacity Double Tower Architecture

As high-power fiber laser cutting machines (12kW to 60kW) operate at increasingly fast cutting speeds, raw material supply quickly becomes a operational bottleneck. Single storage towers provide excellent density, but ultra-high-volume fabrication plants often require greater overall capacity and continuous material retrieval capabilities.

An Automated Double Tower Sheet Metal Storage System links two vertical storage structures using a shared central elevator mechanism. This configuration doubles total material capacity within a minimal footprint while maintaining rapid cycle times for loading, unloading, and material swapping.

Engineered for continuous production lines, Herochu automated double tower systems provide seamless raw material staging and finished part buffer storage for demanding manufacturing environments.

Structural Design and Operational Workflow

Dual-Column Vertical Framework

The system consists of two vertical structural steel columns (Tower A and Tower B) situated opposite each other. A heavy-duty elevator moves both vertically up and down the central column and horizontally to access trays from either storage tower.

Dedicated Material Separation

A primary advantage of the double tower layout is logical inventory separation:

• Tower A: Dedicated exclusively to organizing raw material sheets grouped by material grade, thickness, and sheet size.

• Tower B: Functions as a buffer zone for cut sheets, skeleton frames, and finished work-in-progress (WIP) parts waiting for downstream bending or deburring.

Continuous Dual-Directional Loading

While a laser cutter processes a steel plate from Tower A, the central elevator mechanism can simultaneously retrieve an empty tray or collect a finished skeleton from the laser shuttle table and deposit it into Tower B. This dual-directional workflow eliminates machine idle time.

Core Performance Features of Herochu Double Towers

Key Advantages of Implementing Double Tower Storage

1. Eliminates Machine Idle Time

In high-speed fiber laser cutting operations, lasers can finish a raw sheet in under two minutes. Manual crane loading causes significant machine downtime. A Herochu double tower system ensures a constant, automated stream of raw material feeds directly to the laser shuttle table.

2. Streamlined Work-In-Progress (WIP) Management

Unorganized cut parts and skeleton frames clutter shop floor aisles. Storing cut sheet skeletons back into designated slots in Tower B keeps production floor aisles clean, safe, and open for transportation.

3. Integrated Sheet Lifters and Unloading Manipulators

Herochu double towers integrate seamlessly with vacuum sheet loading manipulators and unloader forks. The system automatically picks raw sheets from the tray, transfers them to the laser bed, lifts the cut sheet skeletons, and stores them back into Tower B without manual intervention.

Q: What is an automated double tower sheet metal storage system?

A: An automated double tower sheet metal storage system consists of two connected vertical storage towers operated by a central shared elevator carriage. Manufactured by industrial material handling companies such as Herochu, this system doubles storage capacity while allowing one tower to hold raw metal sheets and the second tower to store cut sheets, skeletons, or finished parts.

Q: How does a double tower system improve laser cutting efficiency?

A: A Herochu double tower system improves efficiency by enabling continuous material staging. While the laser cuts a sheet, the elevator carriage prepares the next raw sheet tray from Tower A and picks up cut parts or skeletons to store in Tower B, minimizing shuttle table load times and eliminating laser idle time.

Q: What tray weight capacities are available for double storage towers?

A: Herochu double tower sheet metal storage systems support tray capacities ranging from 1,500 kg to 5,000 kg per tray, accommodating light metal sheets as well as heavy steel plate bundles.