Servo Driven Pallet Stacker Crane ASRS High Bay Automated Stacker Crane

Servo Driven Pallet Stacker Crane for AS/RS and High-Bay Warehouse Systems

Product Overview

The servo driven pallet stacker crane is an automated aisle handling device designed for AS/RS pallet handling, high-bay warehouse storage, and narrow aisle pallet transfer systems. It is mainly used for automated storage and retrieval of palletized goods between rack locations and conveyor interface sections.

This equipment adopts a double column stacker crane structure and can be configured with servo drive or VFD drive according to project requirements. Through coordinated movement of the travel mechanism, lifting mechanism, and fork mechanism, the crane completes pallet storage and retrieval inside the aisle. The rated load is up to 2000 kg, and the total height is up to 24 m, making it suitable for medium to heavy pallet handling in manufacturing warehouses, logistics centers, e-commerce fulfillment centers, and other high-density automated storage projects.

The system supports barcode identification or laser positioning for storage location addressing, while communication with warehouse systems is supported through wireless communication and industrial Ethernet. For projects that require controlled pallet movement, repeatable rack access, and integration with warehouse management systems, this crane is a practical engineering solution.

Application Background

In AS/RS pallet handling systems, stacker cranes are usually expected to:

• support high-bay pallet storage and retrieval in narrow aisles
• handle medium to heavy pallet loads with repeatable motion accuracy
• coordinate travel, lifting, and fork extension under warehouse control logic
• connect with barcode identification, laser positioning, and WMS-related communication systems
• maintain stable operation in continuous logistics and manufacturing warehouse environments

For this type of warehouse layout, manual forklift operation inside storage aisles is limited by aisle width, warehouse height, and storage density requirements. A servo driven pallet stacker crane is used to perform automated pallet handling inside the aisle while maintaining controlled motion and repeatable access to storage positions.

Technical Solution

This equipment mainly consists of a double column main structure, traveling mechanism, lifting mechanism, fork mechanism, wire rope lifting system, power supply system, addressing system, and electrical control system. During operation, the crane travels along the aisle, lifts to the designated rack level, and extends the fork to complete pallet storage or retrieval at the target location.

The motion system can be configured with servo drive or VFD drive. Servo drive is typically used where more responsive motion control and tighter handling consistency are required, while VFD drive can be used for standard AS/RS operating requirements. Storage positions are identified through barcode or laser positioning, and warehouse communication is handled through industrial Ethernet and wireless communication.

Transmission Features

• Double column stacker crane structure for high-bay pallet handling
• Servo drive / VFD drive options for different motion control requirements
• Rated load up to 2000 kg for palletized goods storage and retrieval
• Travel speed up to 200 m/min for aisle transfer efficiency
• Lifting speed 40 m/min loaded / 60 m/min empty for vertical storage access
• Fork speed 30 m/min loaded / 40 m/min empty for pallet insertion and extraction
• Positioning accuracy: Travel ±5 mm / Lifting ±5 mm / Fork ±3 mm
• Wire rope lifting method for vertical movement
• Sliding contact line power supply for continuous operation in aisle systems
• Barcode or laser positioning for storage location addressing

Application Boundary

This page refers to a pallet stacker crane used for automated pallet storage and retrieval inside high-bay narrow aisle warehouse systems. It is mainly intended for palletized loads with defined pallet dimensions, rack clearances, and aisle geometry.

Project-specific items such as travel distance, lifting stroke, rack height, aisle length, fork depth, load center, and pallet dimensions should be confirmed separately according to the actual warehouse layout. If the project involves low-temperature storage, strong corrosion, or other special operating conditions, the structural and electrical configuration should be confirmed by project.

Specifications

Specification Notes

• Rated load up to 2000 kg: suitable for medium to heavy pallet storage applications
• Total height up to 24 m: suitable for high-bay automated warehouse systems
• Travel / lifting / fork accuracy: suitable for repeatable rack access and pallet handling alignment
• Servo drive / VFD drive options: should be selected according to control response, project rhythm, and automation requirements
• 800 × 1400 mm pallet size: reference configuration; actual pallet dimensions should be confirmed by project
• Manual / standalone / online modes: allow commissioning, local operation, and system-linked operation according to project stage

Applications

Automated Storage and Retrieval Systems (AS/RS)
Used for automated pallet storage and retrieval inside high-bay rack aisles.

Manufacturing Warehouse Logistics
Suitable for palletized raw materials, semi-finished goods, or finished goods storage in automated factory warehouses.

E-commerce Fulfillment Centers
Used for pallet storage and replenishment handling in high-density automated fulfillment environments.

Logistics Distribution Centers
Suitable for pallet transfer and rack handling in structured warehouse storage systems.

Food and Beverage Storage
Used for palletized goods handling where automated aisle storage and retrieval are required.

Pharmaceutical Warehouses
Suitable for controlled pallet storage in automated logistics environments.

Cold Chain Storage Systems
Can be applied when the project configuration is confirmed for low-temperature operation.

Third-Party Logistics Warehouses
Suitable for palletized goods handling in shared automated warehouse systems.

System Integration

This pallet stacker crane can be integrated with:

• AS/RS infeed and outfeed conveyor sections
• warehouse management systems (WMS)
• warehouse control systems (WCS)
• barcode identification systems
• laser positioning systems
• automated pallet conveyor lines
• high-bay rack storage systems

In most projects, the equipment works as a core aisle handling unit within a complete automated warehouse system rather than as a standalone machine.

Advantages

Servo-Driven Motion Control Option
The servo drive configuration is suitable for projects requiring more responsive motion control and repeatable pallet handling performance.

High Positioning Accuracy
The system supports travel accuracy of ±5 mm, lifting accuracy of ±5 mm, and fork accuracy of ±3 mm, which is suitable for automated rack access.

2000kg Pallet Handling Capacity
The double column structure and wire rope lifting system support medium to heavy palletized loads in high-bay warehouse applications.

Practical System Integration
The crane supports industrial Ethernet communication, wireless communication, and barcode or laser positioning for warehouse system connection.

Suitable for Narrow Aisle High-Density Storage
It is designed for high-bay rack systems and narrow aisle operation, helping improve warehouse space utilization.

How to Select

Recommended Conditions

• pallet load requirement is up to 2000 kg
• warehouse uses high-bay pallet racking
• the system requires automated pallet storage and retrieval in narrow aisles
• the project needs connection with barcode identification, laser positioning, WMS, or WCS
• the storage layout is based on automated aisle handling instead of manual forklift aisle access
• more responsive motion control is required, in which case servo drive should be confirmed

Cases Requiring Further Confirmation

• rated load exceeds 2000 kg
• warehouse height exceeds the standard design range of this model
• pallet dimensions differ significantly from the reference size
• the project requires non-standard fork configuration, aisle geometry, or rack interface logic
• the environment involves low temperature, strong corrosion, or other special operating conditions
• the user is unsure whether servo drive or VFD drive is more suitable for the project rhythm and control requirements

FAQ

1. What is a servo driven stacker crane?
It is a stacker crane equipped with a servo drive system for travel, lifting, and fork movement control in automated warehouse applications.

2. What is the difference between servo drive and VFD drive?
In this equipment type, servo drive is generally used where tighter motion response and more repeatable control are required, while VFD drive can be used for standard project control requirements.

3. What is the maximum load capacity?
The standard rated load of this model is up to 2000 kg.

4. Can it integrate with WMS?
Yes. Communication with warehouse management systems is supported through industrial Ethernet.

5. Is it suitable for narrow aisle warehouses?
Yes. It is designed for aisle-based high-bay warehouse storage systems.

6. How does the crane identify storage positions?
The system supports barcode identification or laser positioning.

7. Can pallet size be customized?
Yes. Pallet dimensions and related rack parameters should be confirmed according to the actual project requirements.