Direct answer: Zhengna Technology manufactures made-to-drawing precision metal components for humanoid robot joint and actuator modules, including actuator housings, hollow shafts, bearing seats, flanges, reducer interface rings, torque sensor mounts, stamped brackets, spring clips, fasteners and small assemblies.
This page is for OEM engineers, sourcing managers and supplier-quality teams that need actuator hardware with clear datum strategy, tolerance-stack control, surface-treatment planning and inspection records before quotation.
Read the related Zhengna Technology humanoid robot joint and actuator white paper for detailed DFM, failure-mode and RFQ guidance.
See the broader Zhengna Technology robot precision metal components page if your project covers more than one robot subsystem.
| Component | Manufacturing route | Inspection focus |
|---|---|---|
| Actuator housings | CNC milling, drilling, tapping, anodizing | Bearing seat, flatness, thin-wall deformation, thread depth |
| Joint shafts and sleeves | CNC turning, Swiss machining, grinding or finishing | Diameter, concentricity, runout, surface finish |
| Flanges and reducer interfaces | CNC machining, drilling, tapping, surface treatment | Bolt pattern, datum, flatness, tolerance stack-up |
| Brackets and sensor mounts | Stamping, sheet metal fabrication, CNC machining | Hole position, bend angle, burr direction, cable clearance |
| Clips, fasteners and assembly kits | Spring forming, cold heading, machining, packaging | Spring force, thread fit, torque behavior, lot traceability |
| Priority | Why it matters for humanoid joints |
|---|---|
| Bearing and shaft datums | Poor datum control can create backlash, rough motion or unstable assembly feel even when single dimensions pass inspection. |
| Thin-wall machining stability | Actuator housings can distort after roughing, finishing, anodizing or assembly torque if wall thickness and fixture strategy are weak. |
| Surface-treatment fit control | Anodizing, plating or blackening can change thread, bore and shaft fits when coating thickness is not reviewed up front. |
| Burr and edge safety | Stamped brackets, clips and sensor-mount edges can damage cables, create assembly friction or reduce service life. |
| Packaging protection | Precision bores, polished shafts and coated visible parts need packaging that prevents scratch, dent and mixed-hardware damage. |
Zhengna Technology can manufacture made-to-drawing actuator housings, joint shafts, bearing seats, flanges, torque sensor mounts, stamped brackets, spring clips, fasteners and small assemblies.
Processes include CNC machining, Swiss-type turning, stamping, sheet metal fabrication, spring forming, cold heading, surface treatment, assembly and inspection.
Include drawings, 3D files, joint function, material, bearing and shaft requirements, reducer interface dimensions, surface treatment, quantity and inspection records.
The related Zhengna Technology white paper expands the DFM questions, failure modes, component families and quotation checklist for humanoid robot joint and actuator hardware.
EN
