4-Way Shuttle Smart Warehouse System
The 4-Way Shuttle Smart Warehouse System is an automated storage solution that utilizes autonomous shuttle vehicles (AGVs) capable of flexible movement in four directions—forward, backward, left, and right—on the same rack level.
The system operates in compliance with multiple storage strategies, including Selective, FIFO (First In, First Out), and FILO (First In, Last Out).
The entire operation process is fully automated through the coordination between AGV shuttles and the WMS (Warehouse Management System). In this system, the AGV shuttle is responsible for horizontally transporting goods to the lifter (elevator) position. The lifter then receives the load and moves it up or down between storage levels as required by the system. Operators only need to input data via the HMI, while all remaining processes are handled automatically.

ADVANTAGES
- Space optimization: Compared to stacker crane solutions, this system eliminates the need for vehicle aisles, maximizing floor space utilization.
- Flexible scalability: The modular design allows businesses to easily expand storage capacity as demand grows, without interrupting ongoing operations.
- Stable and safe operation: Equipped with sensors, safety fences, and protection systems to ensure continuous monitoring and minimize workplace accident risks.
- High accuracy: Fully automated inbound and outbound processes ensure low error rates, improving reliability in inventory management.
- Enhanced efficiency: Processing speed reaches 5–10 pallets/hour, reducing waiting time for inbound and outbound operations. The system supports multiple picking strategies, with Selective as the primary mode, combined flexibly with FILO and FIFO according to requirements.
- Suitable for multiple storage environments: Designed to operate reliably in harsh conditions, with a working temperature range from -5°C to +40°C.
SYSTEM STRUCTURE
AGV 4-Way Shuttle
The AGV 4-way shuttle can move in all directions—forward, backward, left, and right—to access any position on a single storage level. This enables automated handling, transportation, storage, and retrieval of goods based on commands from the software system.
When combined with a layer-changing elevator, the 4-way shuttle can operate throughout the entire warehouse space without being limited to a single level.

Layer-Changing Elevator (Lifter)
The layer-changing elevator is a core component of the automated warehouse system, responsible for transporting goods to designated levels after receiving them from the 4-way shuttle. Featuring a robust aluminum frame, energy-saving counterweight mechanism, and fully automatic control, the lifter ensures fast, accurate, and stable vertical movement.

TECHNICAL SPECIFICATIONS
| Load capacity |
≤ 600kg |
| Compatible cargo size | Customized according to AGV shuttle |
| Drive mechanism | Ac servo motor |
| Safety & braking system | Automatic stop sensors, motor cutoff, emergency brake, collision avoidance |
| Positioning system | Incremental encoder + laser zone measurement |
| Position tolerance |
±3mm |
| Operating modes | Manual / Remote automatic / On-machine HMI |
| Max no-load speed |
3 m/s |
| Receiving platform | AGV shuttle rail |
| Data transmission | Industrial BUS standard |
| Control system |
PLC Siemens |
| Noise level (per unit) |
≤ 75dB |
| Operating temperature |
-5°C đến +40°C |
RACK FRAME SYSTEM
The rack frame system is constructed from metal and serves as the main structural component of the entire system, responsible for supporting loads and ensuring overall stability. Typically made from high-strength steel with excellent wear resistance and load-bearing capacity, the structure can also be manufactured from aluminum or finished with powder coating to enhance durability and adapt to different application requirements.

Rack Structure
| Rack Structure | ||
| Upright columns | Height | 2–12 m (depending on storage design) |
| Diameter | 80 – 100mm | |
| Material | Galvanized steel or powder-coated steel | |
| Beams | Length | 1–3 m (depending on storage design) |
| Material | High-strength steel | |
| Guide rails | Length | 1–3 m (depending on installation design) |
| Size |
~50x100mm. |
|
FEATURES
- Rack system optimized for shuttle operation, ensuring stable and efficient vehicle movement.
- Guide rails installed between storage levels for AGV shuttle travel.
- Design minimizes warehouse aisles, significantly increasing storage density.
- Flexible support for FIFO or LIFO inventory strategies.
- Rack system customized according to cargo characteristics, load capacity, and operating conditions.
- Designed for high safety, durability, and easy maintenance.
APPLICATIONS
The 4-Way Shuttle Automated Warehouse System is an advanced automated storage solution widely applied in modern distribution centers, e-commerce warehouses, food and beverage warehouses, cold storage facilities, and industries requiring high throughput and optimal space utilization.
With its ability to move flexibly along both horizontal and vertical axes, the AGV 4-Way Shuttle maximizes warehouse volume utilization, supports multi-aisle storage, shortens inbound and outbound cycle times, and reduces reliance on manual labor.
The 4-Way Shuttle warehouse solution not only enhances operational efficiency but also delivers long-term cost savings and easy system expansion as demand increases. It is an optimal choice for enterprises seeking a smart warehouse solution aligned with full automation and sustainable operations.
