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4-Way Shuttle System, a good choice to make your warehouse storage capacity double or more
4-Way Shuttle Systems ( or Called as “Vierweg-shuttlesystemen“) are an advanced solution in automated high-density storage, offering exceptional flexibility, speed, and efficiency for handling palletized goods. Unlike traditional shuttle systems that move in a single direction, these shuttles can travel forward, achteruit, links, en gelijk. This multidirectional movement allows the system to transfer between storage lanes and main aisles without the need for forklifts, helping reduce labor costs and improve warehouse efficiency. By maximizing both horizontal and vertical space, the system increases storage capacity within the same area.



Specifications of the SSTC Four-Way Shuttle Racking System
| Specification | Values |
| Rated Loading | Max 1,500Kgs |
| Operating Speed | 1.5 – 2.0 mevrouw |
Loading Speed | 45 ~ 50 m/min |
Unloaded Speed | 70 ~ 75 m/min |
| Reversal Time | 2.5 s |
| Accuracy of Positioning | ±2 mm |
| Battery Capacity | 60 AH |
| Charge Time | 3 Hours for 80% 5 Hours for 100% |
| Battery Type | Lithium Iron Phosphate |
| Battery Life | Frozen Warehouse: Max 8Hours Ambient Warehouse: Max 10Hours |
| Applicable Temperature | -30°C ~ 50°C |

Components of SSTC Four-Way Shuttle System
- Racking Frame and Guide Rails: Manufactured from high-quality steel, these components offer exceptional load-bearing capacity, ensuring long-term durability and stability for the entire system.
- SSTC Four-Way Shuttle: An intelligent shuttle robot capable of handling pallets weighing Max 1,500Kgs, operating at speeds of up to 72 meters per minute. It ensures fast and safe pallet transport.
- Lift Platform: An automatic lifting device that transfers the shuttle and pallets between racking levels with high precision, supporting fast and stable goods circulation.
- Auto Re-Charging Station: Powered by lithium batteries, it enables fast charging within 90 minutes and supports continuous operation for up to 8 hours in cold storage and 10 hours in standard warehouse environments.
- Warehouse Management Software (WMS/WCS): Integrates a smart Warehouse Management System (WMS) and Warehouse Control System (WCS), enabling precise pallet tracking, efficient shuttle navigation, and seamless connectivity with enterprise systems such as ERP or SAP.
- Safety Sensors: Automatically detect humans and obstacles, ensuring maximum safety during operation.
- Integrated System: SSTC’s shuttle system can be flexibly integrated with other automation solutions such as conveyors, Automated Guided Vehicles (AGV's), and industrial robots, creating a fully automated logistics chain.
Advantages of SSTC Four Way Shuttle Systems
- Flexible Movement in All Directions
- High Speed with Exceptional Precision
- Expandable and Modular Design
- Customized for Complex Requirements
- Intelligent Software Integration
- Efficient Battery System
- Strong and Durable Construction
- Proven Expertise in Warehouse Automation

Operating Principle of Four-Way Shuttle
Inbound Process
- Task Initialization by WMS: Het magazijnbeheersysteem (WMS) initiates a storage task by identifying an available location based on real-time inventory data, product type, and warehouse optimization logic. This task is then assigned to the SSTC Four-Way Shuttle System for execution.
- Pallet Arrival at Inbound Station: The pallet is physically transported to the inbound station using a forklift, conveyor system, or automated guided vehicle (AGV). Sensors at the inbound area detect the pallet’s arrival and confirm it is ready for processing.
- Instruction Transfer to SSTC Shuttle via WCS: The Warehouse Control System (WCS) communicates directly with the SSTC Four-Way Shuttle, transmitting precise instructions that include the pallet’s dimensions, weight, and the exact destination within the storage grid.
- Pallet Pickup and Horizontal Navigation: The SSTC shuttle autonomously moves to the inbound station. Using its telescopic forks or lifting platform, it lifts the pallet securely and begins traveling horizontally through the racking system. Thanks to its ability to move forward, achteruit, links, en gelijk, the shuttle navigates both storage lanes and main aisles efficiently without the need for forklifts or track switching.
- Pallet Placement and Confirmation: Upon reaching the assigned storage location, the SSTC Four-Way Shuttle carefully places the pallet into the racking structure. Its onboard sensors ensure accurate positioning with millimeter-level precision. Once the task is complete, the shuttle sends a confirmation to the WCS, which updates the WMS to reflect that the pallet has been successfully stored.
Outbound Process
- Outbound Task Triggered by WMS: When a pallet is needed for shipping or order fulfillment, the WMS creates an outbound task and sends the retrieval instruction to the WCS. The system then dispatches the Eurorack Four-Way Shuttle to handle the request.
- Shuttle Navigation to Storage Location: The shuttle autonomously travels through the racking system to the precise location of the required pallet. Its navigation relies on a combination of QR codes, RFID tags, and advanced laser alignment technology, ensuring smooth and accurate positioning.
- Pallet Extraction from Rack: Once positioned, the Eurorack shuttle lifts the pallet from the storage bay using its integrated handling mechanism. Safety sensors and load detection features ensure secure and stable movement throughout the process.
- Delivery to Outbound Station: The shuttle then navigates through the warehouse toward the outbound station. Upon arrival, it places the pallet onto a designated conveyor, AGV platform, or handoff point, ready for pickup by forklift or automated transfer system.
- System Update and Task Completion: After successful pallet delivery, the Eurorack Four-Way Shuttle System notifies the WCS, which in turn updates the WMS to reflect the inventory change and task completion. This ensures real-time visibility and full synchronization across all warehouse operations.



Exceptional Benefits of Four-Way Shuttle system
- Optimal Space Utilization: Increases storage density by 85-90%, significantly reducing the warehouse footprint without needing expansion.
- Fully Automated: Minimizes labor costs, forklift usage, and operational risks.
- High Flexibility and Speed: Extremely short pallet handling times, under 3 minutes per cycle, ensuring maximum operational throughput.
- Stable and Durable Operation: Performs reliably under harsh conditions from -30°C to 50°C, suitable for both cold and regular warehouses.
- Complete Safety: Equipped with sensors to detect humans and obstacles, significantly reducing collision risks.
Multi-Industry Applications of Four-Way Shuttle Racking
- The four-way shuttle system is highly versatile and adaptable across various warehousing and industrial environments. It can be implemented in high-density storage areas for raw materials, semi-finished goods, and finished products. It also serves as an efficient solution for central logistics hubs, streamlining transshipment and regional distribution processes.
- Within smart manufacturing facilities, the four-way shuttle supports line-side storage, ensuring timely delivery of components directly to production lines.
- This technology is also ideal for temperature-sensitive environments, including cold storage and facilities handling fresh produce such as fruits and vegetables.
- In aanvulling, the four-way shuttle system is perfectly suited for fully automated, unmanned warehouses operating in low-light or black-out conditions, delivering consistent performance without manual intervention.
Why Choose Four-Way Shuttle of SSTC ?
- With over fifteen years of experience in manufacturing and implementing automated warehouse systems, SSTC has built a solid reputation for delivering reliable and high performing solutions that comply with international standards. From the initial concept through to final commissioning, every phase is managed internally, including system design, precision manufacturing, on site installation, and technical maintenance. This approach ensures smooth coordination, cost effectiveness, and consistent quality throughout the entire project.
- Recognizing that every warehouse has its own set of challenges, SSTC provides flexible and fully customized systems tailored to specific industries, facility layouts, environmental conditions, and operational requirements. Whether the application is in a smart manufacturing plant, a cold storage warehouse, or a dense distribution center, each solution is engineered to deliver long lasting performance and scalability.
- Even after installation, SSTC continues to be a dependable partner by offering round the clock technical support, fast service response, and a steady supply of certified replacement parts. Our long term service commitment helps maintain system availability, operational safety, and efficiency at all times.
- Respected by global businesses across a wide range of industries, SSTC is more than just a provider of automation technology. We are a strategic partner focused on improving your warehouse operations today while preparing you for the challenges and opportunities of the future.
AS/RS-reksysteem & Geautomatiseerde magazijnoplossingen | SSTC-inlichtingendienst
