Kaiserdrive KGU-40C Harmonic Integrated Joint Module (465 N·m rated)
Vendor: 开璇智能 Kaiserdrive
Product: KGU-40C
Jiangsu Kaiserdrive (subsidiary of Leaderdrive Harmonic Drive, STAR-688017) KGU robot joint module, model KGU-40C: 465 N·m rated / 639 N·m max torque, 22/32 rpm rated/max speed, 1100 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, Φ23mm hollow shaft, Φ170×139mm envelope, only 7.9kg, optional power-off holding brake. For lightweight humanoid-arm joints (payload/weight ratio near 1:1); smallest joint under 350g.
| bus | EtherCAT（默认）/ CANopen（可选） |
| brake | 可选掉电保持制动器 |
| model | KGU-40C |
| weight | 7.9 kg |
| encoder | 双 20bit 单圈绝对值编码器（BiSS-C） |
| reducer | 谐波减速（速比 1/101） |
| voltage | 48VDC（可选 24VDC） |
| backlash | 零背隙（谐波传动） |
| dimensions | Φ170×139 mm |
| gear_ratio | 1/101 |
| peak_speed | 32 rpm |
| protection | 全闭自冷（F 级绝缘） |
| peak_torque | 639 N·m |
| rated_power | 1100 W |
| rated_speed | 22 rpm |
| vendor_site | https://www.kaiserdrive.com |
| hollow_shaft | Φ23 mm |
| rated_torque | 465 N·m |
| repeatability | 10 arcsec |
| positioning_accuracy | 50 arcsec |