Pick and place is the fundamental robot task — grab an object here, put it there — that underlies most industrial automation, from assembly lines to warehouses, and the benchmark most manipulation systems are built to perform.
Pick and place is exactly what it sounds like: a robot picks up an object from one spot and puts it down in another. It's the most common robot job in the world — sorting, packing, feeding machines, assembling.
If you had to name the single most common thing robots do, it's this: pick something up and put it somewhere else. Pick and place is the bread-and-butter task of industrial robotics.
The cycle
Every pick-and-place operation is a loop of four steps:
Perceive — locate the object (or trust a fixture that presents it in a known spot).
Grasp — plan and execute a grip, then close the gripper.
Transport — move the arm (via inverse kinematics and trajectory planning) to the destination.
Release — place the object at the target pose and open.
Then repeat — often thousands of times an hour.
The pick-and-place cycle
The four steps repeat continuously. Cycle time — how fast one loop completes — is the key performance metric in production.
Structured vs unstructured
The difficulty depends entirely on how much is known:
Structured — parts arrive in fixed positions (fixtures, feeders, conveyors with known spacing). Perception is minimal; the robot just repeats a taught motion very fast and precisely. This is classic high-speed factory automation.
Unstructured — objects are jumbled, varied, or randomly placed (a bin of mixed items). Now perception and grasp planning do the heavy lifting, and it becomes bin picking — much harder, and the frontier where vision and learning matter.
What matters in practice
Cycle time. Throughput is money; shaving milliseconds per pick scales hugely.
Reliability. A failed grasp jams the line, so success rate is critical.
Flexibility. Handling more object types without reprogramming is the trend, powered by visual grasp detection.
Where you'll see it
Assembly lines, packaging, machine tending, electronics (component placement), palletizing, lab automation, and e-commerce fulfillment — pick and place is everywhere goods are made or moved.
Why it matters
Pick and place is the foundational manipulation task and the economic backbone of robotic automation. Almost every advance in grasping, perception, and manipulation is ultimately measured by how much better and more flexibly it lets robots pick things up and put them down.
