A laser cutting machine can process a 6-meter sheet in minutes, but only if plate arrives on time. In most shops, feeding is manual: a forklift, a crane, an operator, and a queue at the cutting table. Herochu’s Laser Cutting Vertical Plate Storage System changes that equation. It is a heavy-duty, customizable ASRS tower that stores plate close to the machine, retrieves it automatically, and delivers it at exchange speeds up to 15 m/min.

Why laser cutting lines run out of plate

Laser cutters have become faster than the people feeding them. Nesting software packs more parts per sheet, cut speeds climb, and the machine finishes its work before the next plate reaches the table. The result is idle machine time — the most expensive kind. Manual storage makes it worse: plates stacked in racks must be found, lifted, and carried, and any mistake in identification sends the wrong gauge to the table. An automated tower solves both problems at once by holding the plate inventory next to the line and presenting the right sheet on demand. Operators stop hunting and start supervising, which also reduces the errors that come with tired workers moving heavy plate at the end of a shift.

How the tower feeds the cutting line

The system works as a vertical buffer between plate storage and the cutting machine. Sheets rest on trays inside the tower; when the cutting table is ready, the control system selects the correct tray, the elevator positions the material cart, and the tray exchanges at the outlet. Exchange and lift speeds of 5–15 m/min keep the supply flowing even at high cutting rates. Repetitive positioning accuracy of ±2 mm means the delivered sheet lands in a consistent position, which simplifies alignment on loading tables, vacuum lifters, and transfer conveyors. The tower can also store processed plate and remnants, keeping the whole material flow inside one system instead of scattered across the floor.

Heavy duty by design

Laser cutting lines run long hours, and the storage system must match that duty cycle. Each tray is made of Q345 steel, sandblasted, oxidized, and electrostatic powder coated; a single tray is tested to support 5 tons. The frame uses large-section high-strength thick-walled steel, with main load-bearing components formed from cold-rolled steel pipes that offer high strength and good pressure resistance. One set stores up to 24 tons. Sensors are rated IP67, so dust and debris from cutting operations do not affect reliability, and the structure stays rigid under repeated heavy cycles.

Customization to match the plate mix

No two laser shops stock the same plate. The Herochu tower is built to order: maximum storage dimension up to 6,000 × 2,500 mm, layer counts up to 15, multiple towers arranged side by side, and clearance space of 240 mm. Power input can be 220 V or 380 V at 50 Hz or 60 Hz, covering both domestic and export installations. If a shop’s plate mix changes later, the storage configuration can be adjusted rather than replaced. This modular approach means the system is sized to today’s production and leaves room for tomorrow’s.

Drives and control

Lifting is powered by a variable frequency motor rated 5.5–11 kW, and inlet/outlet motors are 1.5–2.2 kW. The drives are safe, reliable, and position accurately, and the design lets people and machines work together — operators call for plate, the system delivers it. A PLC handles supervision, with real-time monitoring of pallet positioning, plate weight, overheight detection, and empty slot verification. Fault detection and alerting run on sensor data analysis, so a developing problem is reported while it is still small. Inventory statistics are calculated by dimensions, weight, and material specifications, which makes production planning simpler and gives purchasing a live picture of stock. The 15-inch touchscreen HMI ships with Chinese and English, with region-specific language customization available.

Changeover and remnant handling

Feeding the laser is only half the job; managing the plate that comes back matters just as much. Cut remnants and partially used sheets have a way of piling up beside the machine. The tower accepts them back into empty slots, so remnants are stored where the inventory system can see them instead of leaning against a wall. When a nesting program needs a partial sheet, the operator calls it up by size and the tower delivers it. For shops that process multiple thicknesses, each specification keeps its own slot, so the wrong gauge never reaches the cutting table by accident. This closes the material loop around the cutting process and gives the nesting software a realistic picture of what plate is actually available.

Safety around moving plate

Automated movement and people share the same floor, so guarding is not optional. The tower has a safety guardrail across the front, and safety light curtains stop motion immediately if anyone enters the working zone, preventing incidents from misoperation. Guard plates use a modern, simple design that keeps the system tidy and professional-looking on the production floor. These protections matter most in laser cutting shops, where operators move between machines and the storage area throughout the day.

Frequently asked questions

Can the tower feed existing laser cutting machines? Yes. The system integrates with loading tables, vacuum lifters, and transfer conveyors used by most flatbed laser cutters.

What is the largest plate it can store? Maximum storage dimension is 6,000 × 2,500 mm, customizable to the plant’s actual plate sizes.

Does it support lights-out operation? The PLC, real-time monitoring, and inventory tracking are designed for semi-automated and lights-out operation, with alarms triggered automatically when intervention is needed.

Machine time is the most valuable asset in a laser cutting shop. Herochu’s Laser Cutting Vertical Plate Storage System keeps plate moving to the table automatically, so the laser spends its time cutting — not waiting.