AS/RS, AMR, AGV: What They Actually Are and Why It Matters
- Yuneva Stock Count
- 4 days ago
- 2 min read
Three letters get thrown around in every automation conversation right now — AS/RS, AMR, AGV — and half the time the people saying them are using them interchangeably. They're not the same thing. Not even close. And if you're evaluating any kind of automation for your DC, mixing them up can point you toward a solution that doesn't fit your operation at all.
An AS/RS (Automated Storage and Retrieval System) is a fixed infrastructure play. Think tall vertical carousels, shuttle systems, or the kind of dense cube storage that holds 30,000 totes in the footprint of a basketball court. It doesn't move around your floor — it is the floor, more or less. You're committing to it when you bolt it in. The throughput can be extraordinary, but so is the capital outlay and the lead time. One mid-sized food distribution center I'm aware of ran 18 months from contract signing to first live pick. That's the reality of AS/RS.
AGVs (Automated Guided Vehicles) are mobile, but they follow fixed paths — magnetic tape, wires embedded in the floor, laser-mapped lanes. They're reliable and fast within those lanes, but change your floor layout and you're potentially ripping up infrastructure or remapping everything. Great for repetitive, high-volume pallet moves between fixed points. Not great if your pick faces shift seasonally or your slotting strategy is still evolving.
AMRs (Autonomous Mobile Robots) are the flexible end of the spectrum. They navigate dynamically, build their own map, reroute around a forklift or a pallet that someone left in the aisle 🤖. No fixed path, no tape on the floor. The tradeoff is that they're generally not handling the heaviest loads, and in a very dense, fast-moving environment they can become a coordination problem at scale.
None of these is the right answer by default. AS/RS makes sense when your SKU count is manageable, your velocity is high, and you're not moving walls anytime soon. AGVs make sense when the work is predictable and repetitive. AMRs make sense when flexibility matters more than raw throughput. Most operations that actually get automation right end up running more than one of these, in zones that match each system's strengths.
Know what you're counting before you commit to how you're moving it. More on inventory visibility and what it takes to get accurate data before any automation decision at www.yuneva.com — and if you want to see how mobile counting actually works in a real operation, www.count-inventory.com is worth a look.
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