How to choose a robot for a task
Start with the job, not the brand. A simple sequence for matching a task to a machine that can actually do it.
Start with the job, not the robot
The most common mistake in robotic automation is falling in love with a machine before defining the work. A humanoid that walks and talks is impressive; it is also the wrong tool for most jobs. The right starting question is narrow and boring: what exact task, repeated how many times, to what tolerance, in what environment?
Write the task down as a specification before you look at a single vendor. If you cannot describe the job in one sentence with numbers in it — cycles per hour, payload in kilograms, placement tolerance in millimeters — you are not ready to evaluate machines yet.
Translate the task into requirements
A good task spec converts directly into machine requirements. Each line of the job becomes a filter you can apply to candidates:
- Payload: the heaviest thing the robot must move, plus the gripper's own weight.
- Reach and footprint: can it physically get to the pick and place points in the space you have?
- Cycle time: the seconds per cycle the line requires — and whether the robot can hit it reliably, not just once in a demo.
- Environment: temperature, dust, moisture, wash-down, and whether humans share the space (which drives safety requirements).
- Variability: does every cycle look the same, or does the robot have to handle different SKUs, positions, or orientations?
Variability is the quiet killer. Fixed, identical cycles are cheap to automate and often don't need a general-purpose robot at all. High variability is where flexible machines earn their premium — and where pilots most often disappoint.
Shortlist by evidence, not by announcement
Once requirements narrow the field, rank the survivors by evidence that they do this specific job in the real world — not that they could, in principle. A machine with a documented, multi-month deployment on a comparable task is worth more than a flashier one with only demo footage. This is the entire reason MachineWorth grades every claim: a press release is not a deployment.
Ask every vendor the same question: "Show me a customer running this exact task at this volume, and let me talk to them." The quality of that answer tells you more than any spec sheet.
The best robot for a job often isn't a humanoid
Purpose-built machines — a case-handling mobile base, an inspection quadruped, a fixed arm — frequently beat general-purpose humanoids on the one job you actually have, at a fraction of the cost and risk. Humanoids earn their keep where the environment is built for humans and the task mix is too varied for a dedicated machine. Decide which world you're in before you shop.