Best buyer fit
For teams that need lower-body custom actuators with real load margin, not demonstration-only motion.
Custom actuator support for humanoid leg joints where load, impact, balance recovery, brake behavior, and thermal stability define the design.
Use this page when the buyer is choosing a development route for a funded humanoid robot program, not browsing a standard actuator catalog.
For teams that need lower-body custom actuators with real load margin, not demonstration-only motion.
Lower-body load margin: Robot and gait dependent
The leg actuator is sized from a static torque number only
| Evaluation Metric | Typical Range | Buyer Relevance |
|---|---|---|
| Lower-body load margin | Robot and gait dependent | Leg actuators carry the platform and absorb impact, so undersizing creates mechanical and control instability. |
| Thermal duty margin | Continuous, peak, stall, and recovery cycles | Walking robots repeat high-current events, so peak torque claims need a duty-cycle and heat-rejection check. |
| Impact and brake case | Normal gait, disturbance, fall, and locked brake | Lower-body joints need mechanical protection for events that are not visible in a simple steady torque number. |
Send enough evidence to let engineering qualify feasibility, quotation scope, prototype validation, and pilot readiness in the same review loop.
| Evidence | What to Send | Related Path |
|---|---|---|
| Joint and program baseline | Robot phase, joint map, prototype deadline, pilot date, quantity range, and responsible engineering contact. | RFQ intake |
| Architecture constraints | Motor, reducer, encoder, driver, brake, voltage, control, bearing, housing, cable, and interface constraints. | Product families |
| Load and thermal assumptions | Torque-speed targets, duty cycle, peak load duration, ambient limit, heat path, impact load, and known failure risks. | FEA and thermal review |
| Validation and inspection plan | Torque-speed, backlash, noise, thermal, electrical, dimensional, incoming, in-process, and outgoing inspection needs. | Quality validation |
| Prototype-to-pilot release data | Approved sample reference, drawing revision, BOM revision, test records, CTQ list, pilot quantity, and forecast. | Pilot control |
A solution path should shorten the distance from buyer intent to qualified hardware, while keeping prototype evidence useful for the next build stage.
Confirm the buyer problem, robot phase, custom constraint, and whether this solution path is the right starting point.
Connect the scenario to motor, reducer, encoder, brake, driver, housing, bearing, thermal, and cable decisions.
Define acceptance tests before prototype release so sample feedback can be reused during pilot planning.
Freeze drawings, BOM, CTQ dimensions, inspection gates, packing requirements, and repeat delivery expectations.
This form is prefilled with Bipedal Leg Custom Joints. Include CAD, joint map, torque-speed target, duty cycle, envelope limits, prototype quantity, pilot schedule, and acceptance tests.
Sometimes, but each joint should be checked separately because output load, speed, brake, and packaging needs differ.
Robot mass, link lengths, payload, gait cycle, impact assumptions, brake state, thermal limit, and CAD envelope are the highest-value inputs.
No. Ankles often have tighter packaging, different side loads, and different speed or compliance expectations than knees.
Inquiry Email
Include target torque/speed, quantity, and delivery location.
Application Engineer
+8618857971991
Talk directly about drawings, torque-speed targets, and RFQ data gaps.