Kaiserdrive KGU-20C Harmonic Integrated Joint Module (68 N·m rated)
Vendor: Kaiserdrive
Product: KGU-20C
Jiangsu Kaiserdrive (subsidiary of Leaderdrive Harmonic Drive, STAR-688017) KGU robot joint module, model KGU-20C: 68 N·m rated / 126 N·m max torque, 30/40 rpm rated/max speed, 210 W rated power, 48VDC, ratio 1/101. Integrated harmonic reducer + frameless torque motor + built-in EtherCAT/CANopen servo driver + dual 20-bit single-turn absolute encoders (BiSS-C), 50 arcsec positioning / 10 arcsec repeatability, Φ14mm hollow shaft, Φ90×89mm envelope, only 1.67kg, optional power-off holding brake. For lightweight humanoid-arm joints (payload/weight ratio near 1:1); smallest joint under 350g.
| Bus | EtherCAT / CANopen |
| Model | KGU-20C |
| Weight | 1.67 kg |
| Encoder | 20bit （BiSS-C） |
| Reducer | （ 1/101） |
| Voltage | 48VDC（ 24VDC） |
| Dimensions | Φ90×89 mm |
| Gear Ratio | 1/101 |
| Peak Speed | 40 rpm |
| Protection | （F ） |
| Peak Torque | 126 N·m |
| Rated Power | 210 W |
| Rated Speed | 30 rpm |
| Vendor Site | https://www.kaiserdrive.com |
| Hollow Shaft | Φ14 mm |
| Rated Torque | 68 N·m |
| Repeatability | 10 arcsec |
| Positioning Accuracy | 50 arcsec |