Automatic Overhead Profile Vertical Material Library for Long-Goods Storage

Long-format material storage presents a challenge that conventional warehouse racking was never designed to solve. Profiles, pipes, and bars exceeding six meters in length do not fit standard pallet locations, and their weight distribution across a long span creates handling difficulties that forklift-based systems cannot efficiently address. Facilities that stock these materials typically resort to floor-level flat storage or wall-mounted cantilever arms — both of which consume disproportionate floor space and provide no systematic inventory tracking. The Herochu automatic overhead profile vertical material library redefines long-goods storage by mounting the retrieval mechanism overhead, using the facility’s vertical headroom as the primary storage dimension rather than its floor area.

Overhead Lifting Platform Architecture

The defining engineering choice in the Herochu system is the placement of the traveling carriage on elevated runways above the storage grid. A lifting platform, suspended from an overhead traveling car, descends into the storage positions to extract or deposit long materials. The carriage travels the full length of the rack row on runway rails mounted at ceiling height, while the suspended platform handles the vertical positioning required to address each storage tier.

This overhead configuration eliminates the floor-space penalty of a gantry running on ground rails. The operating envelope of the lifting platform is above the stored materials, not beside them, meaning the system does not require a dedicated travel aisle at floor level. Every square meter of floor space previously consumed by forklift aisles becomes available for processing equipment, staging areas, or additional rack capacity. For facilities where floor space is the binding constraint on production expansion, reclaiming the aisle footprint can be the difference between adding a new machine and deferring the investment.

Vertical Multi-Level Storage for Pipes Up to 12000 mm

The rack grid stores long materials in horizontal slots arranged in vertical tiers, making full use of the workshop’s vertical clearance. Each storage layer supports up to 5000 kg of material weight, accommodating heavy bundles of round pipe, square tubing, and rectangular structural profiles. The system is engineered for materials up to 12000 mm in length, covering the full range of standard and specialized long-format industrial stock.

The vertical tier design addresses a specific failure mode of flat horizontal storage: long materials resting on the floor or on widely spaced supports develop permanent sag under their own weight over time. A twelve-meter steel pipe supported only at its ends will deflect measurably under gravity, and that deflection becomes permanent when the material remains in the unsupported position for extended periods. The Herochu system stores each pipe bundle on support points spaced to prevent mid-span deflection, and the vertical tier structure ensures that no bundle bears the weight of materials stacked above it.

High-Speed Hoist and Carriage Motion

Retrieval throughput in an overhead system is governed by two motion axes: the vertical hoist speed and the horizontal carriage translation speed. The Herochu system is engineered with a hoist lifting speed of 40 m/min and an overhead car translation speed of 100 m/min, positioning it at the performance end of long-goods automated storage. These speeds are not theoretical maximums — they are sustained operating rates that the system maintains during continuous daily production cycles.

The combination of high-speed translation and vertical hoist motion delivers a complete retrieval cycle — from the production order signal to material delivery at the output station — in a fraction of the time required for manual handling. For a production line consuming long profiles at a rate of one bundle every eight to ten minutes, the system maintains the supply buffer without operator intervention, and the ±2 mm repeat positioning accuracy ensures that every retrieval addresses the correct storage slot without positioning retries.

PLC Touchscreen Operation and One-Key Delivery

The operator interface is engineered for simplicity in a complex automated environment. The PLC touchscreen displays the complete storage grid in a visual layout, showing occupied and available positions, stored material specifications, and the status of pending retrieval orders. Material delivery is initiated through one-key operation: the operator selects the required material from the touchscreen display, and the system executes the complete retrieval cycle — carriage translation, platform descent, material engagement, lift, and delivery to the output station — without further intervention.

This operational simplicity is significant for workforce efficiency. A system that requires a skilled operator to manage every retrieval cycle merely shifts labor from one role to another. The Herochu overhead library reduces the operator’s role to exception management and order selection, with the PLC handling all motion control, positioning, and safety monitoring. A single operator can supervise the system while performing other tasks, and the system’s autonomous retrieval capability means it can continue operating during breaks and shift transitions.

Multi-Size Flexible Slot Planning

Long-goods inventory is rarely uniform. A single storage system may need to accommodate 50 mm round pipe, 200 mm square structural tubing, 300 mm I-beams, and 1500 mm flat bar — all within the same rack grid. The Herochu system addresses this through flexible slot planning that adapts storage positions to the actual material mix rather than forcing materials into a fixed slot geometry.

Slot dimensions are defined by adjustable dividers and support arms that set the width and height of each storage position. Slots can be planned for individual pieces of large-diameter pipe or for strapped bundles of smaller tubing. The layout is configured during installation based on the facility’s actual material inventory, and the slot configuration can be adjusted as the production mix changes — a fabrication shop that shifts from round pipe to structural profiles can reconfigure the slot layout without modifying the rack structure.

Digital Inventory Management and Real-Time Stock Display

Every storage position in the overhead library is registered in the system’s digital inventory database. The PLC-based material management system tracks the type, dimensions, weight, and lot identification of every stored item, and the real-time inventory display provides warehouse teams with an always-current view of stock levels and locations. This digital record eliminates the physical stock counts that interrupt manual warehouse operations and provides production planning with accurate material availability data.

The inventory system supports production planning by allowing operators to query stored material by specification, retrieving the correct grade and dimension for each production order. For facilities maintaining traceability documentation — required in aerospace, automotive, and structural steel applications — the system records the lot identification and storage history of every material transaction, providing the audit trail that quality management systems require.

Workshop Layout Integration and Walkway Safety

The overhead design has a direct impact on workshop safety and traffic flow. Because the lifting platform operates above the storage grid, the floor area adjacent to the racks remains clear of handling equipment. Forklift traffic in the storage area is eliminated for routine retrieval operations, reducing the collision and pedestrian-accident risk that plagues mixed-traffic warehouse floors. Walkways between rack rows remain clear and safe for workers, and the floor space freed from aisle duty becomes available for processing machines or material staging.

The system’s vertical design also keeps stored materials off the floor, eliminating the contamination and corrosion risk that affects materials stored at ground level. Pipe bundles resting on concrete absorb moisture from the slab surface, developing surface rust that requires additional cleaning before downstream processing. Elevated storage on properly drained support positions keeps materials clean and ready for immediate use, reducing the preparation labor that adds no value to the final product.

The Herochu automatic overhead profile vertical material library delivers a long-goods storage solution engineered around the physical realities of industrial profiles. It converts vertical headroom into organized storage capacity, replaces manual handling with programmable retrieval, and integrates digital inventory management into the physical storage infrastructure. For facilities where long materials consume disproportionate handling effort and floor space, the overhead library is the system that brings those resources back under operational control.