HEX 4310 Data Center
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The HEX43xx series motors are integrated joint motors designed by HexFellow specifically for the embodied robotics industry. The series uses a planetary reduction system and offers advantages such as impact resistance, high torque transparency, low friction, and high cost-effectiveness. The motors feature integrated drive and control with CAN-FD communication, and support hardware timestamping, synchronization, MIT control, one-to-many control, and other functions.
Technical Specifications
Motor Characteristics

Motor Features
- Dual encoders with single-turn absolute position on the output shaft, no loss of absolute position on power failure; integrated motor and driver design with compact structure and high integration.
- Feedback of motor speed, position, torque, motor temperature, and other information via CAN-FD@5Mbps.
- Support for sending control commands to multiple motors simultaneously with a single CAN message, enabling one-to-many control.
- Customizable return messages (via CANopen PDO mechanism).
- Support for multiple control modes including position mode, velocity mode, torque mode, MIT mode, and more.
Motor Dimensions
Motor Parameters
| Parameter |
Data |
| Rated Voltage |
48 V |
| Rated Current |
3.7 A |
| Rated Speed |
410 rpm |
| Rated Torque |
3 Nm |
| Peak Torque |
7 Nm |
| Peak Current |
7.5 A |
| No-load Speed |
500 rpm |
| Parameter |
Data |
| Pole Pairs |
28 |
| Phase Inductance |
0.55 mH |
| Phase Resistance |
1.05 Ω |
| Reduction Ratio |
10 |
Sensors
| Parameter |
Data |
| Encoder Bits |
16-bit |
| Encoder Count |
2 |
| Encoder Type |
Magnetic (single-turn) |
Communication Interface
| Parameter |
Data |
| Control Interface |
CANFD@5Mbps |
Control Modes
- MIT Mode
- Velocity Mode
- Position Mode
- Torque Mode
- Direct VS Mode (Profile Torque Mode)
Protection Features
| Protection Type |
Trigger Condition |
| Driver Over-temperature |
Driver temperature > 120°C |
| Motor Over-temperature |
Motor coil temperature > 110°C |
| Over-voltage |
DC bus voltage > 65 V |
| Phase Over-current |
Phase current > 14 A (PEAK) |
| Under-voltage |
DC bus voltage < 14 V |
| Stall Protection |
Driver detects motor stall |
Protection Behavior
All protections above will cause the motor to exit "Enabled Mode" when triggered.
Motor Dimensions and Weight
| Parameter |
Data |
| Outer Diameter |
57 mm |
| Height |
45 mm |
| Weight |
310 g |
| Operating Temperature |
-20~40°C |