AGVs and AMRs: Automated Material Handling Explained

Automated Guided Vehicles (AGVs) and Autonomous Mobile Robots (AMRs) both move material through a facility without a human driver, but the underlying technology and the flexibility they offer are quite different.

AGVs — fixed-path navigation

AGVs typically follow a defined path — magnetic tape, wire guidance, or fixed markers embedded in the floor. They're reliable and predictable, but changing the route usually means physically modifying the guidance infrastructure.

AMRs — dynamic navigation

AMRs use onboard sensors (lidar, cameras) and mapping software to navigate dynamically, adjusting their path around obstacles and people in real time. They're more flexible to redeploy as layouts change, generally at a higher unit cost than a comparable AGV.

Choosing between them

• Stable, unchanging layout with high-volume repetitive routes: AGVs are often the more cost-effective choice
• Facility layout that changes seasonally or with product mix: AMRs adapt without infrastructure rework
• Shared space with pedestrian traffic: AMRs' dynamic obstacle avoidance is generally the safer fit

Both technologies still require the same groundwork as any automation project — clear traffic rules, defined pickup/dropoff points, and integration with the systems (MES, WMS) that tell the vehicles what to move and where.