Some storage systems are designed for light loads and fast moves. This one is designed for heavy plate. Herochu’s Industrial Heavy Duty Customizable Single Tower ASRS combines an 8-layer configuration, Q345 steel trays, and a thick-walled steel structure into a system that stores up to 24 tons of sheet in one tower — with automated retrieval, PLC control, and the safety equipment a serious plant expects.

Eight layers of high-density storage

The single tower packs eight storage layers into a footprint that a manual rack would need several times over. Because plates are stored flat on separate trays, the system uses the building’s height instead of its floor area, and every layer stays accessible. For plants where floor space is measured in cost per square meter, the density gain alone often justifies the investment. Layer count is customizable — configurations run to 15 layers — so the tower grows with the plant rather than limiting it, and additional towers can be added side by side when volume climbs.

Steel that carries steel

The tray is where the load actually rests. Herochu manufactures trays from Q345 steel, with surfaces sandblasted, oxidized, and finished with electrostatic powder coating. In real-world tests, a single tray supports 5 tons, and per-layer capacity reaches 5,000 kg. The frame is fabricated from large-section high-strength thick-walled steel, giving the warehouse body good rigidity and strength. Main load-bearing components are manufactured from cold-rolled steel pipes, chosen for high strength and good pressure resistance — the same qualities that keep heavy racks upright under years of full loads.

Structural design: bilateral frames and triangular beams

The three-dimensional warehouse uses an integral bilateral frame combined with triangular oblique span beams. This configuration distributes the load evenly between both sides of the tower and resists the twisting forces that appear when a five-ton tray moves at speed. Rigidity is not a theoretical concern here: it determines whether positioning stays accurate after years of use, and whether the structure remains stable during heavy unbalanced loads. Materials and section sizes are selected for long service life, so the tower keeps its performance from the first shift to the ten-thousandth.

Load capacity and working envelope

The system’s ratings answer the practical questions: maximum storage dimension of 6,000 × 2,500 mm, clearance space of 240 mm, per-layer load up to 5,000 kg, and up to 24 tons per set. Storage in/out exchange speed and lift speed both run at 5–15 m/min, and repetitive positioning accuracy is ±2 mm. That combination — heavy load, tight tolerance, and useful speed — is what separates an industrial ASRS from a light-duty rack with motors. It also means the tower can serve not just storage, but active work-in-process buffering between processes.

Drives built for daily duty

Lifting uses a servo motor with gear reducer rated 5.5–11 kW, and feeding uses a servo motor with gear reducer rated 1.5–2.2 kW. Servo drives give the system the torque to move heavy trays smoothly and the control to stop exactly at the target position, with encoder feedback confirming every move. Variable frequency control keeps acceleration and deceleration under command, protecting both the load and the machine. The PLC coordinates the whole sequence, from call for plate to tray exchange, with real-time monitoring of pallet positioning, plate weight, overheight detection, and empty slot verification.

Accuracy that holds under load

Positioning tolerance is easy to achieve on an empty machine and hard to hold under a five-ton load. The Herochu tower holds ±2 mm through the combination of servo drives, encoder feedback, and a frame rigid enough not to flex when a loaded tray stops. Every move is confirmed against the control program, so a tray that does not reach its position is reported as a fault instead of being left to drift. Over time, that repeatability is what keeps the tower compatible with downstream automation — a loading table, a vacuum lifter, or a robot cell expects the sheet to arrive in the same place every cycle, and the tower delivers exactly that.

Safety and durability details

A safety guardrail runs across the front of the warehouse, and safety light curtains stop movement instantly if an operator enters the danger zone — protection against misoperation, not just a label. Trays carry an additional positioning safety device, and the traveling wheels and axles are blackened to resist rust and corrosion. Bearings are maintenance-free, and the powder-coated surfaces stand up to the fluids and debris of a working shop. Guard plates use a modern, simple design that keeps the equipment looking clean and professional while protecting the moving parts behind them.

Customization options

The single-tower system is built around the customer’s plate sizes and volumes: number of layers (up to 15), number of towers, maximum storage dimension (up to 6,000 × 2,500 mm), clearance space (240 mm standard), and input voltage (220 V or 380 V, 50 Hz or 60 Hz). The PLC interface defaults to Chinese and English, with region-specific language customization available for export projects. Every configuration keeps the same core engineering — the differences are in size and capacity, not in quality.

Frequently asked questions

What steel grades are used in the construction? Trays are Q345 steel with sandblasted, oxidized, powder-coated surfaces; the frame uses large-section high-strength thick-walled steel and cold-rolled steel pipes.

How much maintenance does it need? Bearings are maintenance-free, and drive components are designed for long service intervals. Blackened wheels and powder-coated surfaces limit corrosion in normal shop conditions.

Can it be integrated with existing control systems? The PLC supports standard industrial communication, and inventory data can be shared with higher-level management systems.

Heavy plate deserves storage engineered for heavy duty. Herochu’s single-tower 8-layer ASRS delivers the capacity, precision, and durability that industrial sheet metal plants rely on — automated, customizable, and built to last.