Steel pipes, seamless tubes, and alloy pipe bundles present storage challenges distinct from flat sheet or solid bar stock. They are cylindrical, prone to rolling, subject to surface scratching when stacked against each other, and often supplied in mixed lengths that do not fit neatly into standardized rack cells. Herochu developed the Top-Mounted Material Library for Tube Pipe Profile Storage to address these specific material characteristics with a storage architecture designed from the ground up for tubular goods.

The system combines overhead gantry mechanics with configurable bin cell storage layers, creating a material library that accommodates the full spectrum of tube and pipe dimensions — from short cutoffs to full-length 8,000 mm bundles, and from loose individual pieces to strapped multi-piece packages.

Bin Cell Grid Design for Tube Bundles

The storage layers use bin cell grids measuring 600 mm × 500 mm, engineered specifically to cradle cylindrical bundles at regular support intervals. For tubular materials, this grid configuration serves two critical functions:

Anti-deflection support: Long pipe bundles, particularly seamless tubes and alloy pipes, will sag under their own weight if support points are spaced too far apart. The 600 mm × 500 mm grid interval keeps support points close enough to maintain bundle straightness over the full material length, preventing the permanent warping that occurs when pipes are stored on conventional cantilever arms with wide support spacing.

Containment and separation: Each cell cradles a single bundle or material type, preventing cross-contamination between different alloy grades, surface finishes, or diameter sizes. This separation matters in facilities storing multiple tube specifications — mixing a chrome-plated hydraulic tube with a raw carbon steel pipe in the same cell risks surface damage to the finished material.

Size Compatibility and Flexible Configuration

Tube and pipe inventories rarely arrive in uniform dimensions. A single facility may store 6,000 mm seamless tubes alongside 3,000 mm cutoffs, loose individual pieces, and strapped bundles of varying diameters. The Herochu material library accommodates this diversity through configurable shelf layouts:

• Long bundles: Full-length pipes up to 8,000 mm (or customized beyond) span multiple cell positions within a layer
• Short materials: Cutoffs and remnants occupy individual cells without wasting the full layer depth
• Loose pieces: Individual tubes that are not strapped into bundles sit in cells designed with retention edges to prevent rolling
• Mixed configurations: Layers can combine long bundles, short materials, and loose pieces in adjacent cells

Shelf layouts are tailored to on-site material requirements during installation and can be reconfigured as inventory profiles change over time.

Overhead Gantry Retrieval

The top-mounted gantry system runs on elevated runways above the storage tower array, leaving ground level completely clear for forklift access and material handling equipment. An overhead traveling car positions the lifting mechanism above the target storage cell, lowers a suspended platform to retrieve the bundle, and transits it to the picking station.

Horizontal travel operates at 5–30 m/min, vertical lift at 5–15 m/min, and transfer speed reaches up to 12 m/min. Positioning repeatability holds within ±2 mm, ensuring that the retrieval platform aligns precisely with cell coordinates — critical for tubular materials where misalignment during retrieval can cause bundles to shift, roll, or sustain surface contact damage.

Shared Picking Aisle Efficiency

The system employs a shared picking aisle design: a single aisle serves all storage layers and tower sections, rather than dedicating separate access aisles to each storage row. For tube and pipe storage, this shared-aisle approach reduces the total system footprint by eliminating redundant access corridors, which is particularly valuable given the long material lengths that would otherwise require multiple wide aisles.

Load Capacity and Structural Integrity

Each storage layer supports working loads up to 5,000 kg. The Herochu tower framework uses Q235B high-strength steel, verified through Simsolid and Ansys finite element analysis. The elevated runway structures that support the overhead gantry receive equivalent engineering analysis to confirm their ability to carry both the gantry dynamic loads and the suspended weight of full pipe bundles during transit.

Three standard model configurations are available:

• HC-X6053-8: 6,000 mm pipe length, 5 layers, 3,000 kg per level, 8 racks
• HC-X7065-10: 7,000 mm pipe length, 6 layers, 5,000 kg per level, 10 racks
• HC-X8085-10: 8,000 mm pipe length, 8 layers, 5,000 kg per level, 10 racks

Smart Inventory Control

A Siemens S7-1200 PLC governs all gantry operations over PROFINET networks. The 12-inch touchscreen HMI displays real-time stock levels, individual bundle locations by SKU, and retrieval order status. Closed-loop inventory logging tracks storage duration, material grade, and production order associations for every bundle in the system.

For facilities operating under MES or ERP platforms, the Herochu material library functions as an active data node — production scheduling software can trigger automatic pipe retrieval calls, and the system stages the requested bundle at the picking station without operator intervention.

Application Scenarios

The top-mounted tube pipe material library serves facilities handling long, heavy tubular materials:

• Steel pipe manufacturing and distribution centers
• Seamless tube production facilities
• Alloy pipe processing and heat treatment plants
• Tube laser cutting and fabrication shops

Summary

The Herochu Top-Mounted Material Library for Tube Pipe Profile Storage combines overhead gantry mechanics, configurable bin cell grids, and 5,000 kg per-layer capacity into a storage system purpose-built for tubular materials. With ±2 mm positioning repeatability, shared-aisle footprint efficiency, Siemens PLC control, and full MES/ERP integration, it delivers automated, space-efficient storage that protects material integrity across the full spectrum of tube and pipe inventory profiles.