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Force-controlled harmonic module
Harmonic 25 Module
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Product Introduction
The force-controlled harmonic joint module integrates a frameless torque motor, harmonic reducer, and high-precision torque sensor, specifically designed for the compact joints of humanoid robots. It features ultra-high torque density, zero backlash, and high transmission accuracy, with a built-in elastic force control algorithm enabling compliant force control and sensitive collision detection. The module supports high-dynamic reverse drive, simulating flexible interactions similar to human muscles, ensuring safe human-robot collaboration. It is suitable for precise and safe interaction in critical areas of robots such as wrists, elbows, and necks.
Technical parameters
Parameter Classification Parameters unit Specifications
External dimensions Joint diameter mm 110
Joint length mm 122
Hollow hole diameter mm 20
Joint weight kg 2.9
Gearbox parameters Reduction ratio* - 101
Gearbox backlash arcsec ≤20
Transmission accuracy arcmin <1
Average lifespan h 20000
Output capability Start-stop allowable torque N·m 204
Average load torque N·m 140
Maximum instantaneous torque N·m 369
Rated speed rpm 34
Maximum speed rpm 42
Repeatability arcsec <60
Absolute positioning accuracy arcsec <300
Servo System Motor power IN 680
Rated voltage VDC 48
Rated current A(rms) 18
Peak current A(rms) 37
Encoder: Single encoder* ● (Support)
Dual encoder* - (Not supported)
Communication Protocol: EtherCAT ● (Support)
CANopen ○ (Optional)
other Brake: - ● (Support)
Torque sensor*: - ○ (Optional)
IP Class: - IP40
Operating temperature 0~40℃ (-40~60℃ optional)
Storage temperature -40~80℃
Ambient humidity 90% relative humidity (non-condensing)
Remark *Reduction ratios are configurable; please consult for specific parameters.
*Single encoder is a multi-turn absolute encoder.
*Optional dual encoders available; length and dimensions may vary. Please inquire for details.
*Optional torque sensor available; please inquire for details regarding length variations.
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