Map/Physical world/Wave 1

Precision robot actuators

Strain-wave reducers, planetary roller screws and force/torque sensors that make up a humanoid's joints, from few suppliers with long qualification cycles.

capabilityEmerging Open on the map →

Facts

Lane: Physical world
Wave: 1 of 12 (build order, not a date)
Needs: 0 boxes all the way back through hard links
Unlocks: 0 boxes downstream through hard links
Leverage: None
Cluster: Robots and the physical economy
Found by: bill of materials lens

Evidence as of October 2026

Actuators are 40-60% of a humanoid's bill of materials, and one cited estimate puts Optimus Gen 2 at about $46k with Chinese suppliers versus about $131k without them (McKinsey, 17 Apr 2026).

01Turning humanoid supply chain constraints into wins (McKinsey, Apr 2026)

Around it

Needs · 1

Rare-earth permanent magnet supplycapability · Built today · helps, not required

Unlocks · 5

Teleoperation as a data pipelinecapability · Emerging · helps, not required
Robot data and foundation modelscapability · Emerging · helps, not required
Embodied agentsstage · Emerging · helps, not required
Home robotsstage · Speculative · helps, not required
Self-replicating robot factoriesstage · Speculative · helps, not required

Openings researchers' judgement, October 2026 scouting

Startup room 41/100 · rank 59 of 124 Research room 35/100 · rank 108 of 124

Crowding4 Lab overlap4 Small-team fit2 Buyer today3.5 Research openness3

Depth: light
Players: Harmonic Drive Systems; Leaderdrive (1.44M units cap. 2026); Sanhua (3.8bn yuan); Tuopu (5bn yuan); Xinjian (2.6bn yuan); GSA/Rollvis; Keli; in-house at Tesla, Apptronik, Unitree, Figure
Wedge: Independent actuator lifetime, wear and backlash qualification (test rigs plus wear models) that lets humanoid OEMs qualify non-Chinese second-source reducers and roller screws faster. startup