3D Vision Tackles Refractory Brick Depalletizing Challenges

In the refractory materials industry, conventional depalletizing workflows have long suffered from intertwined constraints on productivity and positioning accuracy. When production lines need to process dozens of brick variants with prominent dimensional differences, manual handling cannot meet the standards of modern manufacturing. AI+3D vision technology now offers a transformative solution for this application.

Project Solution

A leading refractory manufacturer implemented an innovative setup with two independent vision-guided robotic systems:

• Station 1: Single suction cup end-effector for special axe-shaped refractory bricks, achieving precise side-suction picking for flat stacking processes;

• Station 2: Dual suction cups designed for standard brick types; synchronous picking boosts overall throughput.

Powered by Transfer Technology’s Epic Eye Laser L 3D camera, the system generates high-precision 3D point cloud data and outputs real-time brick pose information to steer robots to complete fully automatic depalletizing.

Core Technical Breakthroughs

Multi-Type Compatibility

The system supports 55 brick specifications in total (33 for Station 1, 22 for Station 2), with the maximum workpiece dimension reaching 450 mm × 172 mm.

Micro-Gap Point Cloud Segmentation

Stable segmentation is achieved when the clearance between adjacent bricks is no less than 5 mm.

Robust Anti-Interference Imaging

The camera withstands ambient light intensity up to 120,000 Lux and operates reliably under complex factory lighting conditions.

Accurate Orientation Identification

A dedicated 3D recognition model is established based on the characteristic missing-corner geometry of axe-shaped bricks.

Delivered Customer Value

Higher Operational Efficiency

The vision cycle is controlled within 4.5 seconds per pick. 7×24-hour nonstop operation significantly expands throughput to satisfy large-volume production requirements.

Reliable Precision Control

Recognition accuracy reaches ±2 mm, paired with ±5 mm robotic picking accuracy, preventing refractory brick damage throughout depalletizing. The recognition rate of vision-guided depalletizing stands at ≥99.5%, delivering consistent product quality.

Outstanding Production Flexibility

New pallet patterns can be quickly configured, shortening line changeover time.

Standardized & Safe Handling

Vision verification ensures complete stacks and uniform brick orientation. The intelligent trajectory planning algorithm minimizes collision risks during robotic movement.

Transfer Technology resolves prominent depalletizing challenges within the refractory sector via technical innovation. Our AI+3D vision solution serves as a key enabler for industrial automation transformation. As technology keeps evolving, we will support more manufacturing sectors to advance toward intelligent production.