Where the money and the material in a robot come from
Whether a robot can be delivered, and whether delivering it makes money, is usually decided less by how well it is built than by where its materials come from and which link binds. This section takes cost structure and key-component sourcing apart separately, with an evidence grade on every figure.
Filed
Cost structure
Humanoid bill of materials
Actuators take 40-60% of hardware BOM, and the gearbox takes 30-50% of a single actuator. BOM per unit: $30,000-$150,000.
Sourcing judgement
Should you substitute a domestic harmonic drive
30-50% cheaper per unit, about a third of the life. Per operating hour it costs more - unless replacement is free and downtime is painless.
Sources and constraints
The semiconductor supply chain behind a robot
Most chips in a robot are mature-node. The binding constraint is power device capacity cycles and lead time, not leading-edge controls.
Method
Method and evidence grades
How A, B and C are defined, how far each can be used, and four steps to verify any figure yourself.
What this section is for, stated up front
These pages were not written for search traffic. They were written to be opened during a negotiation. We say so plainly so you do not hold them to the wrong standard:
| Dimension | This section | Acquisition pages |
|---|---|---|
| Objective | To be cited, and opened across the table | To be found, and to generate leads |
| Measured by | Whether this site appears in an AI answer's sources | Ranking, impressions, clicks |
| Format | Judgements, figures, comparison tables - each paragraph stands alone when lifted out | Long-form coverage of a keyword |
| Number discipline | Ranges, never single points; conflicts published, not reconciled; Last verified on every page |
Usually one definite number |
The reason is simple. Demand on the search side for this topic is very small - we measured it, and most component-level supply-chain terms return zero monthly searches - but CPC runs above $15, which means companies are genuinely paying for it. The value is real; it sits at the closing stage rather than the acquisition stage. So we spend the effort on being safe to cite, not on being easy to find.
Three situations: in a negotiation, send the relevant page across - a structured cost and sourcing argument persuades better than a verbal one. Deciding internally, use it to work out which four questions to put to a supplier. And when something gets cited - if this site turns up in an AI answer, the judgement on that page has been treated as liftable.
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Last updated 2026-10-09.