Robotic Case Depalletizer Systems | CHAIFU
2026-10-29
Case Depalletizer System – Robotic Case Unloading Solutions
Automated Case Depalletizing Systems for Warehousing, Packaging Lines and Industrial Manufacturing
Looking for an efficient way to unload cartons from pallets?
A case depalletizer system automatically removes boxes or cartons from loaded pallets and transfers them to conveyors or downstream production equipment.
By replacing repetitive manual unloading with industrial robots, manufacturers can reduce manual handling, improve operational consistency and support automated material flow.
Shanghai Chaifu Robotics Co., Ltd. (CHAIFU) develops and manufactures industrial robots for palletizing, depalletizing and material handling applications.
The CHAIFU PA Series provides four-axis industrial robotic platforms with payload options from 50 kg to 300 kg. These robots can be integrated into automated case depalletizing systems according to carton weight, pallet dimensions, handling requirements and production line layout.
Key Features of CHAIFU PA Series Robots
Payload options from 50 kg to 300 kg
Four-axis industrial robotic structure
Working radius up to approximately 3,245 mm
Programmable carton picking and transfer operations
Configurable end-of-arm gripping equipment
Integration with conveyor and packaging systems
Suitable for structured and repeatable case depalletizing applications
Explore CHAIFU PA Series Robots
Request a Custom Solution: contact@chaifuglobal.com
What Is a Case Depalletizer System?
A case depalletizer system is an automated material handling solution that removes cartons, boxes or packaged products from pallets and transfers them to conveyors or designated processing stations.
Depalletizing is the reverse of palletizing.
While a palletizing robot stacks products onto pallets, a depalletizing robot unloads products from pallets. For a complete automated pallet handling workflow, manufacturers can combine depalletizing with robotic palletizing systems and other industrial material handling robots.
A typical robotic case depalletizer consists of:
Industrial robot
Carton gripping equipment
Pallet positioning or conveyor system
Carton discharge conveyor
Robot controller and automation system
Safety protection equipment
Optional machine vision system
The system can be configured for different carton dimensions, pallet patterns and production requirements.
For cartons arranged in fixed positions, the robot can operate using predefined picking coordinates. For variable or mixed-case arrangements, additional vision recognition and robotic motion capabilities may be required. Learn more about robotic automation solutions for integrated production lines.
How Does a Robotic Case Depalletizer Work?
An automatic case depalletizing system typically follows five steps.
Step 1: Pallet Loading
A loaded pallet enters the depalletizing station through a forklift, pallet conveyor or automated material handling equipment.
The pallet is positioned to provide a stable reference for robotic unloading. In larger facilities, the pallet conveyor can also be connected to automated warehouse material handling equipment.
Step 2: Carton Position Detection
For uniform cartons arranged in a fixed pattern, the robot follows programmed picking positions.
For variable pallet configurations, a vision system may be used to identify carton locations, dimensions and orientations.
Step 3: Robotic Carton Picking
The industrial robot picks up the selected carton using an appropriate end-of-arm tool.
Depending on carton weight, packaging material and surface conditions, the gripping mechanism may use vacuum suction, mechanical clamping or a customized handling design. The robot model and tooling should be selected together; see the CHAIFU PA Series robot range for available payload configurations.
Step 4: Automatic Carton Transfer
The robot moves the carton from the pallet to a conveyor or designated transfer station.
Step 5: Downstream Processing
The carton is transferred to the next production or logistics operation, such as:
Automatic sorting
Carton opening
Product inspection
Repacking
Production line feeding
Warehouse distribution
The robotic unloading sequence continues until the pallet is emptied. The discharged cartons can then enter automated packaging and conveyor systems for further processing.
CHAIFU PA Series Robots for Automatic Case Depalletizing
The CHAIFU PA Series consists of industrial robots designed for repetitive palletizing and material handling operations.
With four-axis articulated structures, multiple payload configurations and extended working reach, these robots can be evaluated for automated carton unloading applications. For applications that also require welding or other robotic processes, CHAIFU provides additional industrial robot solutions.
CHAIFU PA Series Technical Specifications
| Robot Model | Rated Payload | Working Radius |
SF50-C2220 | 50 kg | 2,220 mm |
SF130-K2700 | 130 kg | 2,735 mm |
SF180-C3200 | 180 kg | 3,245.5 mm |
SF210-K3200 | 210 kg | 3,200 mm |
SF300-K3200PA | 300 kg | 3,200 mm |
The specifications above are reference values. Final model designations and technical parameters should be confirmed against the latest CHAIFU product documentation.
Multiple Payload Options
CHAIFU PA Series robots offer different payload capacities to support a variety of carton handling requirements.
The appropriate model should be selected based on the total handling load, including carton weight, gripper weight and additional tooling. You can review the PA Series models before discussing the final configuration with CHAIFU engineers.
Four-Axis Robotic Structure
The four-axis articulated structure is suitable for many repetitive pick-and-place operations, particularly when cartons are arranged in predictable orientations.
Extended Working Reach
Different robot configurations provide working radius options for pallet-to-conveyor transfer and automated material handling layouts.
Actual reachable pallet height and picking positions depend on robot geometry, installation conditions and gripper dimensions.
Configurable Gripping Equipment
The robotic system can be engineered with vacuum suction, mechanical clamping or other application-specific gripping equipment.
Industrial Protection
The PA Series includes industrial robot protection features, with IP65-rated main structures and IP67-rated wrist sections.
Additional environmental protection may be necessary depending on dust, moisture, cleaning procedures and operating conditions.
View CHAIFU PA Series Robot Models
Case Depalletizing Applications Across Industries
Robotic case depalletizing systems can be developed for different manufacturing and logistics environments. CHAIFU's industrial automation robots can be evaluated for applications that require repeatable carton handling and conveyor integration.
Food and Beverage Industry
Automatically unload cartons containing packaged food, beverages, canned products and other consumer goods.
The system can supply cartons to unpacking, inspection, sorting and packaging equipment.
Warehousing and Logistics
Transfer cartons from incoming pallets onto conveyor systems for sorting, warehouse distribution and order processing.
Robotic depalletizing is particularly suitable for repetitive unloading operations with predictable pallet configurations. It can also be connected with automated pallet handling equipment for improved warehouse flow.
Consumer Goods Manufacturing
Handle cartons containing household products, personal care products and other packaged goods.
Chemical and Industrial Manufacturing
Unload suitable cartons containing industrial components, packaged materials and other products.
Gripper selection and equipment protection should be evaluated according to carton strength, product characteristics and operating conditions.
Automated Packaging Lines
Integrate robotic depalletizing with:
Carton opening machines
Conveyor systems
Product inspection equipment
Sorting stations
Automated packaging equipment
Warehouse handling systems
For a complete line design, manufacturers can combine case depalletizing robots with conveyors, inspection equipment and downstream packaging machinery.
Single-Case vs. Layer Depalletizing
Two common methods are used in robotic case depalletizing applications.
Single-Case Depalletizing
The robot picks individual cartons from a pallet and transfers them to the designated conveyor or workstation.
This method is suitable for applications requiring individual carton handling.
Typical applications include production line feeding, carton sorting and automated unpacking.
Layer Depalletizing
A layer depalletizer removes an entire layer of cartons using specialized gripping equipment.
This method can reduce the number of picking cycles for uniform pallet loads.
However, layer depalletizing requires sufficient robot payload capacity, appropriate tooling and stable carton arrangements. The required payload can be compared with the CHAIFU PA Series specifications.
Comparison of Depalletizing Methods
Feature | Single-Case Depalletizing | Layer Depalletizing |
Handling method | Individual cartons | Complete carton layers |
Suitable applications | Sorting and line feeding | High-volume unloading |
Carton size flexibility | Depends on gripper | Depends on layer tooling |
Robot payload | Individual handling load | Complete layer load |
Picking cycles | One or more cases per cycle | One layer per cycle |
Tooling design | Application-specific | Usually specialized |
The appropriate method depends on carton dimensions, production capacity, pallet arrangement and downstream process requirements.
Fixed-Pattern vs. Vision-Guided Case Depalletizing
Fixed-Pattern Depalletizing
For cartons arranged in a known stacking pattern, the robot can follow predefined picking coordinates.
This approach is suitable for standardized production environments where carton dimensions and pallet positions remain consistent.
Fixed-pattern depalletizing can simplify system design and reduce the need for complex object recognition.
Vision-Guided Depalletizing
When carton positions or dimensions vary, a machine vision system may be used to identify picking locations and carton orientations.
Vision-guided depalletizing can support applications involving:
Different carton dimensions
Variable carton positions
Partially unloaded pallets
Selected mixed-case arrangements
However, vision recognition alone does not guarantee that a robot can handle every carton orientation.
Applications involving tilted cartons, irregular stacks or complex gripping angles may require additional robot flexibility, specialized tooling or a six-axis robot configuration. For a preliminary discussion of robot selection, visit the CHAIFU industrial robot product page.
The final system design should be based on the actual pallet arrangement and handling requirements.
How Fast Can a Case Depalletizer System Operate?
The handling capacity of a robotic case depalletizer depends on the complete automation system rather than the robot alone.
Important factors include:
Carton weight and dimensions
Robot travel distance
Gripper design
Number of cartons handled per cycle
Pallet stacking height
Conveyor arrangement
Vision processing time
Pallet replacement time
Example: 600 Cases per Hour
Suppose a production line requires a depalletizing capacity of 600 cartons per hour.
The average handling requirement is:
600 cases/hour ÷ 60 = 10 cases/minute
For a single-case picking system:
60 seconds ÷ 10 cases = 6 seconds per case
The robotic system must achieve the required average throughput while allowing for pallet changes and other operating conditions.
This example illustrates how to calculate production requirements. It does not represent a guaranteed performance specification for any particular CHAIFU robot.
Actual system capacity should be verified through engineering calculations, simulation or application testing. A custom CHAIFU robot solution can be evaluated according to the required cycle time and pallet layout.
How to Choose the Right Case Depalletizer System
Selecting an appropriate robotic depalletizer requires evaluating the complete handling process.
Selection Parameter | Required Information |
Carton weight | Minimum and maximum weight |
Carton dimensions | Length, width and height |
Pallet dimensions | Length and width |
Maximum pallet height | Fully loaded pallet height |
Required throughput | Cases per hour |
Pallet arrangement | Fixed-pattern or mixed-case |
Packaging material | Corrugated cardboard or other |
Gripping method | Vacuum, mechanical or custom |
Conveyor height | Carton discharge position |
Installation space | Factory layout and safety clearance |
Robot Payload Selection
Robot payload must include the total carried mass.
For example:
Carton weight: 20 kg
Gripper weight: 15 kg
Additional tooling: 5 kg
Total handling load = 40 kg
Robot selection must also consider the load center of gravity, inertia, operating speed and appropriate engineering margins. Compare these requirements with the available CHAIFU robot payload options.
Working Reach
The robot must reach all required carton positions, including the highest and lowest picking locations.
The maximum horizontal working radius alone does not guarantee that the robot can unload the full pallet height.
Gripper Selection
Vacuum grippers may be suitable for cartons with appropriate surface strength and sealing conditions.
Mechanical grippers may be preferable for cartons with porous surfaces, uneven shapes or insufficient vacuum gripping strength.
Actual carton samples should be tested before finalizing the gripping equipment.
Benefits of Robotic Case Depalletizing Systems
Reduce Repetitive Manual Handling
Automated carton unloading reduces repetitive lifting and transferring tasks.
Improve Operational Consistency
Programmed robotic movements support repeatable carton handling and transfer operations.
Support Continuous Production
Robotic depalletizing can be integrated with conveyors and downstream equipment to support automated material flow.
Adapt to Different Production Requirements
Robot programs and gripping equipment can be configured for different carton sizes and pallet arrangements.
Improve Factory Automation
Robotic depalletizing can connect pallet unloading with sorting, inspection, packaging and warehouse operations. For broader automation planning, explore CHAIFU factory automation robots.
Why Choose CHAIFU for Robotic Case Depalletizing?
Shanghai Chaifu Robotics Co., Ltd. develops and manufactures industrial robots for palletizing, material handling, welding and factory automation.
The CHAIFU PA Series provides different payload capacities and working radius configurations for industrial material handling applications.
CHAIFU PA Series Advantages
Multiple Payload Configurations
Industrial robot options with rated payloads from 50 kg to 300 kg.
Four-Axis Robotic Design
Suitable for many structured and repetitive pallet handling operations.
Flexible Working Reach
Different robot models support various pallet and conveyor layouts.
Programmable Robot Motion
Robotic movements can be configured according to carton positions, transfer paths and handling requirements.
Application-Specific Integration
Robot systems can be engineered with suitable gripping equipment, conveyors and automation controls.
For complex mixed-case depalletizing applications, additional vision recognition, tooling development or robot configuration may be necessary.
CHAIFU can help customers evaluate appropriate robot configurations based on actual project requirements. Visit the CHAIFU PA Series product page to review the available robot configurations.
Explore CHAIFU Industrial Robots
Frequently Asked Questions About Case Depalletizer Systems
What is a case depalletizer system?
A case depalletizer system automatically removes cartons or boxes from pallets and transfers them to conveyors or downstream production equipment. Related robotic material handling solutions can be integrated into the same production line.
What is the difference between palletizing and depalletizing?
Palletizing places products onto pallets, while depalletizing removes products from pallets. Both operations can use industrial robots, although the gripping equipment and motion requirements may differ. See the CHAIFU palletizing and depalletizing robot range for more information.
Can a four-axis robot be used for case depalletizing?
Yes. Four-axis robots are suitable for many structured depalletizing applications where cartons can be picked in predictable orientations.
Can a robotic depalletizer handle different carton sizes?
Yes, depending on the robot configuration, gripper design and programming. Different carton sizes may require adjustments to gripping positions or tooling.
Does a case depalletizer need machine vision?
Not always. Fixed-pattern depalletizing can use programmed picking positions. Machine vision is more useful when carton positions, dimensions or pallet arrangements vary.
How much does a robotic case depalletizer cost?
The cost depends on the robot model, gripping equipment, conveyor system, vision technology, safety equipment and integration requirements. Contact CHAIFU for a project-specific quotation and review the available industrial robot models.
How many cases can a robotic depalletizer handle per hour?
The actual capacity depends on carton weight, robot motion, gripper configuration, pallet arrangement and system layout. Throughput should be evaluated according to the required production conditions.
Can a robotic depalletizer integrate with an existing production line?
Yes. Robotic depalletizing systems can be engineered to interface with existing conveyors, packaging machines and automation equipment, subject to mechanical and control compatibility. CHAIFU can assess integration requirements through its industrial automation robot solutions.
Request a Custom Case Depalletizer Solution
Looking for an automatic case depalletizing system for your factory or warehouse?
CHAIFU can help you evaluate a suitable industrial robot configuration for your carton handling requirements.
To receive a project-specific recommendation, please provide:
Carton dimensions and weight
Required cases per hour
Pallet size and maximum stacking height
Fixed-pattern or mixed-case pallet arrangement
Available installation space
Destination country
Explore CHAIFU PA Series Robots
https://www.chaifuglobal.com/pa
Contact CHAIFU
Email: contact@chaifuglobal.com
Shanghai Chaifu Robotics Co., Ltd.
Industrial Robots for Automated Material Handling and Depalletizing Applications
