TESOLLO DG-5F-S Robotic Hand: Why 500Hz Control and 20 DoF Matter for Humanoid Robots
- 6 days ago
- 3 min read
Humanoid Robots
I. Why Do Humanoid Robots Need High Degree-of-Freedom (DoF) Dexterous Hands?
The TESOLLO DG-5F-S robotic hand is designed for humanoid robotics research and advanced manipulation tasks.
With 20 degrees of freedom (20 DoF) and high-frequency control up to 500Hz, the system enables precise finger coordination, stable grasping, and complex in-hand manipulation.
This article explains why high DoF design and high-speed control loops are critical for next-generation humanoid robots.
II. DG-5F-S Design Positioning: A Lightweight Solution Optimized for Humanoid Platforms
The TESOLLO DG-5F-S is a five-finger dexterous hand designed specifically for integration with humanoid robot platforms. Its core design objectives include:
1. 20 Degrees of Freedom with Independent Control
4 degrees of freedom per finger
20 independently actuated joints in total
Supports high-precision anthropomorphic operations
This configuration enables simulation of the complex grasping and posture adjustment capabilities of the human hand.
2. Ultra-Lightweight Design
Weight: 880 g
Dimensions approximate an adult male hand
For humanoid robots, the weight of the end-effector directly impacts:
Arm dynamic performance
Energy consumption
Control stability
Keeping the weight under 1 kg significantly reduces overall system burden.
TESOLLO DG-5F-S 數據規格表
 | |
Specification | 規格參數 |
Degrees of Freedom (DoF) | 20 DoF (4 DoF per finger) |
Weight | 880 [g] |
Control Frequency | 500 Hz |
Communication Interface | EtherNet (TCP/IP), Modbus (TCP) |
Power Supply | 24 [V] (Max current consumption 10 [A]) |
Encoder Type | Absolute Encoder |
Pinch Grip Load Capacity | Rated 1 / Max 2 [kg] |
Power Grip Load Capacity | Rated 7 / Max 12 [kg] |
III. Why Does the DG-5F-S Operate at 500Hz Control Frequency?
The DG-5F-S operates at a control frequency of 500 Hz, compared to 250 Hz for the DG-5F-M. The reasons for this doubled frequency can be analyzed from an engineering perspective:
1. Upgraded Dedicated Actuator Technology
The DG-5F-S employs an advanced, optimized dedicated actuator design that enables more responsive control.
2. Direct Drive Mechanism
Direct drive provides:
Reduced backlash
Improved positional accuracy
Enhanced control feedback stability
Lower mechanical play contributes to higher achievable control loop frequencies.
3. High Sensitivity Requirements for Humanoid Platforms
For in-hand manipulation and dynamic grasping tasks, high-frequency control enables:
Improved real-time responsiveness
Reduced oscillation
Enhanced fine-tuning precision
Therefore, 500 Hz is better suited to the design demands of humanoid manipulation.
IV. Engineering Trade-offs: DG-5F-S vs. DG-5F-M
Design Difference Analysis
M Model: Oriented toward industrial heavy-duty grasping and high-payload applications.
S Model: Oriented toward humanoid robot dynamic manipulation and lightweight integration.
The S model trades off some payload capacity in exchange for weight and responsiveness advantages.
型號比較
 | | ||
Specification | DG-5F-M (Standard) | DG-5F-S (Lightweight) | Notes |
Primary Application | Industrial automation precision assembly service robots | Humanoid robot platform integration, dexterous manipulation research | |
Body Weight | 1,763 [g] | 880 [g] | S model is approx. half the weight of M model |
Control Frequency | 250 Hz | 500 Hz | S model offers greater operational agility |
Pinch Grip (Rated/Max) | 2.5 / 5 [kg] | 1 / 2 [kg] | M model significantly outperforms S model |
Power Grip (Rated/Max) | 10 / 20 [kg] | 7 / 12 [kg] | M model has superior heavy-load handling |
V. Application Differences Between 15 DoF and 20 DoF
The DG-5F-S is also available in a 15 DoF compact version.
15 DoF Use Cases:
Space-constrained platforms
Research tasks that do not require advanced in-hand manipulation
Prototype testing and algorithm validation
20 DoF Use Cases:
Fine-grained manipulation
Tool use
Multi-posture grasping tasks
This flexible configuration helps R&D teams strike a balance between cost and complexity.
VI. Software Integration and System Compatibility
The DG-5F-S was designed with integration in mind, supporting:
ROS2-compatible control environment
EtherNet (TCP/IP)
Modbus (TCP)
It also provides:
Universal Robots (URcaps) support
Techman Robot (TM Flow2) integration tools
This makes it applicable across:
Academic research
Industrial automation
Humanoid robot platform development
VII. Market Trends and Technical Background
According to market research data, the global five-finger robotic hand market is projected to grow at a compound annual growth rate (CAGR) of over 10%, reaching nearly $900 million by 2030.
As humanoid robotics advances toward commercialization, high-DoF, lightweight, and high-frequency-control end-effectors will become critical core components.
Technical Summary
The core design principles of the DG-5F-S are:
20 DoF anthropomorphic manipulation capability
880 g ultra-lightweight design
500 Hz high-frequency control
Direct drive high-precision mechanism
Flexible degree-of-freedom configuration
Multi-platform integration capability
Compared to high-payload-oriented models, the DG-5F-S is specifically focused on the sensitivity and control precision demands of humanoid robots. Related Topics
Humanoid robot manipulation
Robotic hand dexterity
AI robot training systems
Motion capture for robotics
About Axis3D Technology
Axis3D Technology is the official distributor of TESOLLO in Taiwan, providing robotic manipulation solutions, motion capture systems, XR interaction technologies, and AI robotics integration.
The company supports research institutions and enterprises with ROS2, Unity, Unreal, and AI robot training integration.
If you're interested in learning more about practical use cases or customized integration solutions, feel free to reach out to us.
