In brief: robotic depalletising removes products or complete layers from an incoming pallet and places them onto conveyors, fixtures or another controlled destination. Unlike palletising, the cell must detect and manage variation in loads that have already been transported and handled.
Technical guidance by Oxford Industrial Automation. Updated 1 September 2026.
Depalletising starts with the condition of the arriving load
Palletised goods can shift in transit, lean, compress, lose spacing or arrive on damaged pallets. Layer sheets, corner boards, stretch wrap and mixed orientations may also affect robot access.
A reliable concept defines the permitted incoming-load condition and the response to loads outside it. Sensors or machine vision may locate layers and products, while tooling must tolerate realistic position variation without damaging the load.
Single-product unloading
Remove one case, bag, container or tray at a time where product positions are known or detected.
Row or layer handling
Use multi-pick tooling where product and layer stability support faster bulk transfer.
Vision-guided location
Measure the pallet, top layer or individual items when transport variation makes fixed coordinates unreliable.
Controlled outfeed
Orient, space and release products into conveyors or downstream machines without creating a new bottleneck.
Depalletising feasibility inputs
| Product | Pack type, dimensions, mass, rigidity, grip surface, damage risk and permitted contact |
|---|---|
| Pallet load | Pattern, layers, overall height, stability, lean, spacing, slipsheets and stretch wrap |
| Variation | Pallet type and condition, transport movement, damaged packs and mixed or incomplete layers |
| Removal method | Single item, multi-pick, row or full layer, plus slipsheet and empty-pallet handling |
| Outfeed | Destination orientation, conveyor capacity, spacing, buffers and downstream handshakes |
| Intervention | Load rejection, manual correction, access, safe recovery and restart procedure |
Palletising and depalletising are related but not identical
Palletising builds a load from products supplied under controlled conditions. Depalletising begins with a completed load that may have changed during storage and transport. That uncertainty increases the importance of sensing, tooling tolerance and exception handling.
Mixed-SKU or randomly arranged loads require a more advanced identification and planning approach than fixed single-product layers. The project scope should state the exact load types the cell must accept.