Laser or Barcode Positioned Auto Storage System for Automated Cold Storage Warehouses

１．Product Overview

This auto storage system is designed for automated cold storage warehouses that require pallet conveying, transfer, lifting, storage, and retrieval under low-temperature operating conditions. It is suitable for projects where pallet movement needs to remain connected between inbound stations, outbound stations, buffer sections, transfer points, and high-bay storage locations while maintaining stable flow in refrigerated environments.

Based on the available configuration, the system can be built with chain conveyors, roller conveyors, lift transfer units, rack and pinion lifts, and pallet stacker cranes. The pallet conveying section supports 500 / 1000 / 1200 / 2000 kg load classes with standard conveying speeds of 12 / 14 / 16 m/min. The conveyor operating temperature range is -25℃~5℃ for low-temperature applications and -5℃~40℃ for standard environments. The pallet stacker crane supports storage heights up to 24 m and rated loads up to 2000 kg, while the rack and pinion lift provides ±2 mm positioning accuracy for level transfer and interface docking.

The system also supports Industrial Ethernet communication with WMS and uses laser positioning or barcode positioning as the addressing method. This combination makes the system suitable for cold storage warehouse automation projects that require both physical pallet handling and warehouse task coordination.

２．Technical Solution

The system uses chain conveyors and roller conveyors as the main pallet transport path between receiving points, buffer zones, transfer interfaces, storage interfaces, and shipping sections. These conveyor modules support continuous pallet movement and can be configured according to pallet load class, warehouse rhythm, and line layout.

Where pallet route change is required, the lift transfer unit is used to connect conveyor directions and move pallets between process sections. Where vertical connection between levels is required, the rack and pinion lift provides pallet transfer with 1000 / 2000 kg lift load and ±2 mm positioning accuracy. For automated high-bay storage and retrieval, the pallet stacker crane works as the aisle storage module and supports pallet put-away and outbound retrieval.

At the control level, the system communicates with WMS through Industrial Ethernet. Addressing can be configured with laser positioning or barcode positioning according to site requirements and warehouse control logic. This allows pallet transport, transfer, storage assignment, retrieval, and inventory-related tasks to work together within one automated cold storage structure.

３．Specifications

４．Application

This system is suitable for cold storage warehouses that require pallet infeed, pallet outfeed, buffering, transfer, and high-bay pallet storage under refrigerated conditions.

It is commonly used in cold chain logistics centers, food cold storage warehouses, frozen goods storage, refrigerated distribution centers, finished goods cold storage, and pallet ASRS projects.

It is also suitable for automated warehouse layouts where pallet movement between conveyor lines, transfer sections, lift interfaces, and storage aisles needs to be managed as one connected warehouse process.

５．Processing

Pallets enter the system from inbound conveyor lines and move through chain conveyors or roller conveyors to buffer sections, transfer points, or storage interfaces.

Where direction change is needed, the lift transfer unit redirects pallets between conveyor routes. Where vertical transfer is needed, the rack and pinion lift moves pallets between different levels with controlled positioning.

For storage operations, the pallet stacker crane receives pallets from the interface section, stores them in assigned rack locations, and retrieves them when outbound tasks are released. Throughout this process, WMS communicates with the system through Industrial Ethernet to coordinate pallet routing, storage assignment, inventory updates, and outbound task execution, while the addressing method can be based on laser or barcode positioning according to project configuration.

６．Advantages

Laser positioning or barcode positioning gives the system two addressing options for automated warehouse control, which helps match different site conditions and project logic.

The conveyor section supports low-temperature operation from -25℃ to 5℃, making it suitable for refrigerated warehouse and cold chain pallet handling applications.

The pallet conveying section supports 500 / 1000 / 1200 / 2000 kg load classes, which allows the system to match different pallet weights and warehouse handling requirements.

Conveying speeds of 12 / 14 / 16 m/min support continuous pallet flow between inbound, outbound, buffer, and transfer sections.

The rack and pinion lift provides ±2 mm positioning accuracy, which is suitable for level transfer, interface docking, and stable pallet handover.

The pallet stacker crane supports heights up to 24 m and rated loads up to 2000 kg, making the system suitable for high-bay automated cold storage layouts.

Industrial Ethernet communication with WMS supports coordinated control of pallet movement, storage tasks, and inventory-related warehouse operations.

７．How to Choose

Selection should begin with pallet type, pallet size, and actual pallet weight. This determines whether 500 kg, 1000 kg, 1200 kg, or 2000 kg conveying and storage configuration is appropriate.

Warehouse temperature is another key factor. For projects operating at -25℃~5℃, the low-temperature conveyor and transfer configuration should be confirmed together with actual frost conditions, moisture level, and operating rhythm.

If the project includes high-bay racks, the required storage height and aisle arrangement should be checked to confirm whether a pallet stacker crane up to 24 m is suitable. If the warehouse includes level transfer, the lift load and ±2 mm positioning requirement of the rack and pinion lift should also be reviewed.

The addressing method should be confirmed according to control logic and site conditions. Projects that require different path recognition or location confirmation logic may choose laser positioning or barcode positioning accordingly.

Finally, WMS interface requirements, inbound and outbound task pattern, and throughput target should be confirmed before the final equipment combination is defined.

８．FAQ

Q1．What positioning methods are available in this auto storage system?

The system supports laser positioning or barcode positioning. The final selection should be confirmed according to site conditions and warehouse control logic.

Q2．Is this system suitable for automated cold storage warehouses?

Yes. The conveyor section supports low-temperature operation from -25℃ to 5℃, which makes it suitable for refrigerated warehouse automation and cold chain pallet handling.

Q3．What pallet loads can the system support?

The pallet conveyor section supports 500 / 1000 / 1200 / 2000 kg load classes, and the pallet stacker crane supports rated loads up to 2000 kg.

Q4．Can the system connect with WMS?

Yes. The system supports Industrial Ethernet communication with WMS for pallet routing, storage assignment, and inventory-related task coordination.

Q5．What is the maximum storage height supported?

The pallet stacker crane supports storage heights up to 24 m, which is suitable for automated high-bay pallet warehouse layouts.

Q6．Is this a fixed equipment package?

No. This is a system-level automation solution. The final equipment combination depends on pallet size, pallet weight, warehouse temperature, layout, throughput target, addressing method, and WMS interface requirements.