SICK Pallet Inspection Systems deliver reliable, non‑contact inspection of pallets before they ever enter automated material‑handling flows.
In modern production and intralogistics environments, the shift toward autonomous mobile robots (AMRs), automated guided vehicles – AGVs –, and automated storage and retrieval systems – ASRS – has increased throughput, responsiveness, and operational efficiency. Yet this transformation also introduces a new layer of vulnerability: equipment safety and operational reliability depend heavily on pallet quality.
A damaged pallet whether cracked boards, missing blocks, protruding nails, or dimensional defects can trigger failures across the entire automated ecosystem. A faulty pallet may cause AGV derailment, ASRS crane jams, load instability, conveyor stops, robot misalignment, or even safety hazards for human personnel.
This is where SICK Pallet Inspection Systems – PAIS – have become indispensable. Using advanced 3D vision, AI tools, PAIS deliver reliable, non‑contact inspection of pallets before they ever enter automated material‑handling flows.
Reducing unplanned downtime across automated systems
Unplanned downtime is among the most expensive disruptions in automated logistics. AGVs and AMRs rely on predictable load and stable pallet integrity for smooth navigation, lifting, and transfer motions. ASRS cranes rely on consistently shaped pallets to avoid skewing, falling loads, or racking jams.
PAIS mitigates these risks by identifying defects such as:
- Missing or broken boards.
- Twisted or misaligned blocks.
- Protruding nails.
- Cracks or material loss visible in 3D scans.
- Dimensional deviations beyond tolerance.
PAIS identifies missing blocks, rotated blocks >5°, cracks ≥3 × 3 mm, and missing wood areas ≥1 cm².
By automatically rejecting defective pallets before they enter the automated flow, PAIS eliminates a major root cause of system stoppages, ensuring AGVs, AMRs, and ASRS equipment can operate continuously without manual intervention.
Protecting AMRs
AMRs feature sensitive navigation sensors, forks, rollers, belts, and lifting mechanisms that can be damaged by poor-quality pallets. ASRS cranes and shuttle systems face even higher exposure, as a single defective pallet can cause:
- Fork or tine bending.
- Shuttle misalignment.
- Rack collisions.
- Conveyor impact events.
- Safety gate lockouts.
PAIS use of heavy‑duty stainless‑steel housings, impact‑resistant glass, Class 2M line lasers, and high‑resolution 3D cameras (0.6 mm/pixel) designed to detect the smallest defect that could compromise equipment safety.
This mechanical and optical precision allows PAIS to act as a protective gate, shielding automated equipment from the downstream consequences of poor pallet quality.
Ensuring load stability for autonomous material transport
AMRs and AGVs are optimised for transporting stable loads. A structurally compromised pallet can shift or collapse during movement – especially during acceleration, deceleration, or when using multi‑level racking.
PAIS mitigates these hazards through complete geometric profiling. PAIS creates a full 3D model of the pallet (top, sides, bottom, internal blocks), enabling accurate detection of:
- Uneven boards.
- Warped decks.
- Crushed or displaced blocks.
- Pallet tilt or deformation.
This ensures that only structurally sound pallets proceed into AMR/AGV workflows and ASRS storage locations, reducing load‑shift risks.
Improving safety
While automation reduces human exposure to physical hazards, it does not eliminate them. Workers still interact with pallets at receiving zones, stretch‑wrapping stations, or rework areas.
Pallet defects such as protruding nails, broken boards, and splinters remain a major source of injuries.
PAIS systems detect protrusions and foreign objects—including nails >5 mm and automatically flag pallets requiring manual repair.
This leads to:
- Fewer handling injuries.
- Lower risk of load collapse.
- Safer hybrid (man + machine) environments.
By integrating pallet health checks into automated workflows, organizations strengthen their overall workplace safety culture.
Increasing automation readiness and standardisation
As production logistics moves toward Industry 4.0, standardising the condition of load carriers becomes essential. Pallet variability is one of the largest contributors to inconsistent automation performance.
PAIS delivers automation‑ready consistency through:
- Scalable defect threshold settings.
- Automated pass/fail classification.
- Real‑time status indicators.
- Statistical logging for quality control.
- Integration with PLCs and WMS systems.
Standardisation benefits AGV/AMR fleet coordination, as well as synchronised logistics across receiving, production supply, and outbound operations.
Enhancing throughput and operational productivity
Automation thrives on flow, especially when AGV/AMR fleets work in coordinated swarms and ASRS cranes operate at high cycles per hour.
PAIS contributes to throughput by:
- Inspecting up to 500 pallets/hour in continuous operation.
- Processing pallets with <2 seconds inspection changeover time.
- Supporting conveyor‑integrated workflow with encoder feedback.
- Automatically routing rejected pallets to rework lanes.
By eliminating manual inspection, PAIS frees labour capacity and accelerates the overall pace of material movements.
Cost savings through prevention
The ROI case for PAIS in AGV/AMR and ASRS environments is immediate and tangible:
- Lower equipment repair and maintenance costs.
- Fewer production interruptions.
- Reduction in load‑related product damage.
- Improved pallet pool quality over time.
- Reduced labor required for quality checks.
- Fewer emergency ASRS interventions.
Given the predictable inspection accuracy verified across 1,000‑pallet test cycles, PAIS provides a quantifiable economic buffer against unpredictable pallet‑related disruptions.
Conclusion
As AGVs, AMRs, and ASRS continue to redefine production logistics, the hidden variable shaping their success is the reliability of the pallets that move through these systems. Pallet Inspection Systems transform pallet quality from a manual gamble into a controlled, automated safeguard.
By ensuring only structurally sound, dimensionally compliant, and damage‑free pallets enter highly automated flows, PAIS protects automation assets and workers, improves throughput, reduces downtime, and enhances overall operational safety.
In short, PAIS is not just a quality control tool – it is a core safety system for the future of autonomous intralogistics.