ZHR actuator engineering inquiry checklist Version: 2026-09-18 Copy the relevant fields into your inquiry. Mark unknown values as unknown. This is a requirements template, not a product specification or quotation. 1. Application and joint: hip / knee / ankle / shoulder / elbow / wrist / other 2. Candidate model and configuration, if known: 3. Load profile: payload, link masses, lever arms, gravity direction, external forces 4. Required output torque: sustained or RMS, peak magnitude and duration 5. Motion: speed, acceleration, cycle duration and rest periods 6. Thermal conditions: ambient temperature, mounting surface and cooling 7. Installation: diameter, axial length, mass limit, bolt pattern and cable clearance 8. Output loads: radial, axial, overturning moment and impact cases 9. Power: nominal voltage, allowed range, current limit and regeneration handling 10. Control: controller, bus, command/feedback rates, operating modes and firmware 11. Feedback: encoder, homing and multi-turn requirements 12. Precision: allowable backlash, repeatability and accuracy, with measurement conditions 13. Safe stop: behavior on power loss, holding/braking and system-level validation needs 14. Quantity and stage: prototype / pilot / production; requested delivery date 15. Files needed: applicable datasheet, drawing/CAD, wiring, protocol, thermal/load evidence 16. Known document conflicts or revision requirements: Do not treat a catalog peak torque as a continuous or impact-load rating. Confirm model, configuration and document revision in the engineering response. Public document hub: https://robotics.zhinno.com/resources/technical-downloads.html H-series engineering inquiry: https://robotics.zhinno.com/products/zhr-h.html#contact P-series engineering inquiry: https://robotics.zhinno.com/products/zhr-p.html#contact