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Aluminum Robot Joint Housing
This aluminum robot joint housing is a precision structural enclosure designed for collaborative robots, industrial robotic arms and automated handling equipment. Monolithically shaped from high-strength lightweight aviation aluminum alloy, the component features dual bearing chambers, distributed mounting holes and positioning slots integrated in one piece. Manufactured via five-axis simultaneous machining, it achieves ultra-precise bore concentricity and smooth complex curved outlines, offering stable structural protection, accurate bearing positioning and consistent assembly benchmarks for robot joint drive modules. It fully satisfies industrial robot standards for light weight, high rigidity and repeat positioning accuracy under frequent reciprocating movements.
- Machining Process: 5-axis simultaneous CNC milling, drilling, tapping, micro deburring, hard anodizing optional
- Material: Aviation Aluminum Alloy (6061-T6 / 7075-T6 customizable)
- Accuracy: Standard ±0.01 mm, ultra-precision bore tolerance up to ±0.005 mm
- Surface Finish: Bright as-machined finish, hard anodizing (black/silver) optional
- Features: Lightweight, high structural rigidity, excellent bore concentricity, wear-resistant anti-corrosion coating available
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With rich experience in mold precision CNC processing, our workshop is equipped with complete five-axis machining equipment to process complex multi-cavity and curved structural parts. The one-time clamping forming process of five-axis equipment avoids position deviation caused by repeated clamping, stably controls the dimensional tolerance and coaxiality of key bearing holes. We offer drawing evaluation, full-cycle processing and complete testing services, and can flexibly respond to prototype trial production and large-volume orders of automation equipment accessories.
Core Advantages
- Lightweight with Outstanding Structural Rigidity: Premium aviation aluminum material greatly lowers the overall weight of robot joints to ease motor load and cut power consumption, while maintaining enough rigidity to avoid structural deformation during high-speed reciprocating rotation.
- Ultra-High Bore Concentricity from Integrated Machining: Dual bearing chambers are processed in a single five-axis clamping cycle, which eliminates alignment errors from multiple re-clamping. Perfect concentricity prevents bearing and motor shake, improving the robot’s movement smoothness and repeated positioning precision.
- One-Piece Multi-Functional Integrated Outline: Curved outer contours, mounting holes, positioning slots and limit grooves are all formed as a single unit. No extra auxiliary connecting fixtures are required, which streamlines the assembly process of robot joint modules and shortens production cycles.
- Long-Lasting Wear & Corrosion Resistance: Optional hard anodizing treatment elevates the surface hardness significantly, defending the housing against scratches, oxidation, and erosion from workshop cutting fluids during long-term continuous production runs.
- Fully Customizable Structural Design: Inner bore diameters of bearing chambers, distribution layout of mounting holes, overall outer dimensions and positioning slot profiles can all be customized strictly according to your robotic arm engineering drawings.
Common Applications
Specification Table
| Parameter | Details |
| Raw Material | 6061-T6 Aviation Aluminum Alloy; high-strength 7075-T6 aluminum available upon request |
| Machining Process | 5-axis simultaneous CNC milling, drilling, tapping, internal & external micro deburring, optional hard anodizing surface treatment |
| Dimensional Tolerance | Standard ±0.01 mm overall tolerance; custom ultra-precision ±0.005 mm tolerance for bearing inner bores |
| Surface Finish | Standard bright machined metal finish, hard anodized coating (silver / black color optional) |
| Bore Inner Diameter Range | Customized based on robot design drawings, common range: 10 mm – 80 mm |
| Maximum Overall Machining Size | Customized per customer drawings, max processing dimension: 400 mm |
| Continuous Working Temperature | -20℃ ~ +120℃ |
| Quality Control | Full 3D CMM dimensional scanning inspection, bore concentricity runout testing, thread gauge calibration, surface hardness test for anodized workpieces |
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