The boring robot already pays for itself, and fastening is about as boring as it gets. Franka Emika's December 13, 2022 grant US11524405B2 claims a screwing device — a force-controlled robotic screwdriver for collaborative robots.
Read the economics in the task. The CPC tags — B25J 9/1679 force control, B25J 9/1633 compliance, G05B 2219/40072 and G05B 2219/45091 assembly automation — describe a cobot built for repetitive precision fastening. Unglamorous, and exactly where the payback math is cleanest.
The capex read is that cobot ROI is task-specific and measurable. A force-controlled screwdriver that fastens thousands of identical joints per shift, consistently and without fatigue, displaces a quantifiable amount of manual labor with a quantifiable cycle time. That is a payback period you can actually compute.
For a public-equities reader, the contrast with humanoid hype is instructive. A general-purpose humanoid is a speculative bet; a force-controlled screwing cobot is a bounded, financeable capex item with a known job. The latter is where automation cash flow lives today.
The honest limit: the grant describes the device, not deployment volume or realized savings. Cobot ROI depends on duty cycle and integration cost. The patent establishes the tool; the payback depends on how hard it is run.
The takeaway for the money desk: collaborative-robot returns concentrate in dull, precise, repetitive tasks. A robotic screwdriver is not a headline, but it is the kind of bounded automation that actually pencils out.