Custom 5-Axis CNC Machined Large Arc Aluminum Rotor Bracket

Quick detail

This large arc aluminum rotating frame is custom-manufactured on 5-axis CNC mills. It features integrated multi-hole positioning bosses and pocket cutouts, machined from solid aluminum billet. The sandblasted matte finish delivers stable mechanical performance, designed for robotic rotary joints and automated motion systems.

Product description

Chenrong Precision manufactures this large curved rotating frame in our domestic CNC workshop. The part has a wide semicircular arc contour, multiple precision mounting holes and recessed pockets, which requires 5-axis simultaneous machining to achieve smooth curved transitions and coaxial tolerance.

We adopt solid block milling instead of casting to eliminate internal porosity, critical for dynamic rotary load. Every hole position and boss feature is inspected by CMM to ensure assembly accuracy. Our factory handles sandblasting surface treatment internally to shorten lead time. We support custom revision based on client CAD files, from prototype validation through low-volume trial to full mass production, serving robot integrators and automation machinery manufacturers.

Custom parameter table

Product features

• Large continuous semicircular arc profile, 5-axis simultaneous machining
• Integrated rotary boss & distributed hole layout for high-precision assembly
• Pocketed weight reduction design while retaining structural rigidity
• Sandblasted matte surface, uniform texture and anti-reflection
• Solid billet machining, no casting defects for dynamic rotary service

Product advantage

Our factory is equipped with large travel 5-axis machining centers, capable of processing oversized curved aluminum structural components. Our engineering team reviews your drawings for manufacturability before production, to optimize tool path and reduce deformation risk. All critical dimensions are fully inspected before shipment. We can provide FAI reports for prototype orders to help customers speed up product certification.

Product application

Robotic Rotary Joint Frame

Main rotating structural frame for collaborative robot arm assemblies.

Motion Stage Structural Part

Arc support frame for high-precision rotary motion platforms.

Automated Positioning System

Positioning carrier used for workpiece rotation in automated assembly lines.

Medical Equipment Rotating Bracket

Lightweight, stable rotating frame for medical scanning and inspection machinery.

FAQ

Q: Can you adjust the arch radius of this robot frame?

A: Yes, send your 3D CAD drawing or specify radius dimension, our engineers will review machining feasibility.

Q: Which aluminum grade is better for high-speed robot movement?

A: 7075 aluminum is recommended for high dynamic load; 6061 is cost-effective for general robot applications.

Q: Can hard anodizing be applied after sandblasting?

A: Yes, sandblasting plus hard anodizing is available to enhance surface hardness and corrosion resistance.

Q: What is the sample lead time?

A: 8-10 working days for prototype samples. Mass production lead time depends on quantity and surface treatment.

Q: Can you provide CMM inspection report?

A: CMM dimension report can be provided upon request for critical structural robot components.