Goods-to-Person Picking: Bring the Totes to the Picker

A goods-to-person system brings inventory to a stationary operator instead of sending the operator to the inventory. Robots retrieve the requested tote, bin, or carton from storage and present it at a workstation, and the operator picks from a sequence of presented containers. It is the opposite of conventional person-to-goods picking, where the picker walks the aisles with a cart or a pick list. Because travel is usually the largest single component of manual pick time, removing it is where most of the throughput gain comes from. Goods-to-person is one branch of the broader automated storage family covered in our guide to types of automated storage and retrieval systems. If you are past the what-is-it stage, our guide to sizing a goods-to-person picking system covers how order lines translate into stations and robots.

Grid and cube systems store bins in a dense stack under a purpose-built steel structure, with robots working across the top and digging down to reach a bin. They deliver very high density for small items, but they require that structure to be built and they require every inbound item to be decanted into system bins before storage. A rack-mounted goods-to-person system instead fits climbing robots to the face of conventional racking and uses floor robots to move containers to the station. It handles original shipping cartons as well as totes, so there is no decanting step, and it can go into a building you already have. Grid systems generally win on raw density for small parts; rack-mounted systems win on retrofit, carton handling, and speed of deployment.

Often, yes, and that is the main reason to consider a rack-mounted system. The robots mount to a frame fixed to the rack face rather than requiring a dedicated automation structure. What we verify first is upright capacity and condition, frame and beam geometry, floor flatness, aisle dimensions, and whether the existing configuration matches the container sizes you want to store. If your rack was installed for pallets and you are picking small parts, some reconfiguration is usually part of the project. We assess the existing structure before designing around it.

Not necessarily, and in a lot of buildings the right answer combines them. A pick module or carton flow bank is very efficient for a limited set of fast-moving SKUs where a picker can work a short, dense face without much travel. Goods-to-person earns its cost on the long tail, where thousands of slower SKUs would otherwise spread pickers across the whole building. Many operations run both, with the fast movers in a manual pick face and the tail in an automated system. We design the split rather than defaulting to one technology for everything.

Everything from concept through commissioning: system design and equipment selection, the rack structure new or existing, workstation layout, controls and software integration, electrical coordination, fire protection review, permitting, and installation. You work with one team that owns the outcome and stays on for support afterward, instead of coordinating an automation vendor, a rack supplier, an installer, and a permit expediter separately.

Cost is driven by how many robots and workstations your peak throughput requires, how many storage positions you need, the scope of software and WMS integration, and whether the racking is new or already in place. Because the structure is conventional rack rather than a purpose-built grid, both the capital and the install scope tend to be lighter than crane or grid AS/RS at comparable position counts. The honest gating question is not price, it is whether your SKU count and order volume are stable enough to justify committing to automation at all. We model the business case with you, including labor, space, and throughput, before you commit. Our warehouse capacity calculator is a useful starting point for the space side of that comparison.