Choosing the Right Joint Modules for Robotic Arms & Mobile Robots

Our TD Series Joint Actuators are widely used in both fixed robotic arms and mobile robots, but selecting the right actuator depends on the application.

For fixed robotic arms, higher torque is often preferred to handle heavier payloads and maximize performance.
For mobile robots, however, bigger torque is not always better.
An oversized and heavy joint module can:
• Reduce battery life by increasing power consumption.
• Shift the robot's center of gravity, affecting stability during turns.
• Increase vibration and reduce precision during object grasping.
The best solution is to match the torque to the actual application, ensuring sufficient payload capacity with an appropriate safety margin, while keeping every joint as lightweight as possible.
The right balance between torque, weight, and efficiency leads to longer runtime, better stability, and smoother robotic motion.