Client Requirements
A leading medical technology company approached us with the need for a precision gearbox solution for their latest surgical robotic arm project. The robotic arm was designed to assist surgeons in minimally invasive operations, requiring highly precise movements with strict demands on size, weight, and reliability.
The client outlined several critical technical specifications:
- Mounting Type: Flange-mounted installation
- Reduction Ratio: 80:1
- Protection Grade: IP65 waterproof and dustproof
- Output Torque: 85 Nm continuous
- Size Constraints: Compact structure with a maximum outer diameter of 90mm
- Backlash: Less than 5 arcmin
- Material: Corrosion-resistant stainless steel housing for medical-grade hygiene standards
Our Solution and Collaboration Process
Upon receiving the client's detailed requirements, our engineering team initiated a full technical assessment. We organized multiple video conferences with the client's mechanical design team to understand the motion profile, load conditions, and sterilization requirements of the robotic arm.
Key aspects of our solution:
- Customized Flange Design: We developed a specialized flange with integrated sealing to achieve IP65 protection while maintaining a compact form factor.
- Optimized Gear Train: Using a combination of precision-ground planetary gears and specially hardened materials, we ensured a high reduction ratio of 80:1 while keeping noise and vibration to a minimum.
- Backlash Control: Through fine gear preloading and precision assembly, we achieved backlash below 3 arcmin, exceeding the client's original expectation.
- Surface Treatment: All external components underwent electropolishing and medical-grade passivation processes to meet stringent cleanliness requirements.
Throughout the project, we provided:
- Rapid Prototyping: A functional prototype was delivered within 45 days.
- Comprehensive Testing: Fatigue, waterproof, and precision tests were conducted to verify performance under simulated surgical environments.
- After-Sales Support: We supported the client during their clinical trial phase with technical adjustments and on-site training.
Result and Client Feedback
Our custom gearbox solution enabled the robotic arm to achieve precise, stable movements with outstanding reliability during minimally invasive surgeries. By reducing system weight and increasing positional accuracy, the client reported a 12% improvement in surgical efficiency during clinical trials.
The client highly praised our professional responsiveness, engineering expertise, and willingness to customize. They have since designated us as their preferred gearbox supplier for their next-generation surgical robot platform.
