Semotor - 深圳小象电动科技有限公司
Semotor is a Shenzhen maker of axial-flux permanent-magnet motors supplying robot joint actuators to over 30 humanoid robot companies worldwide.
Semotor, the trade name of Shenzhen Xiaoxiang Electric Technology Co., Ltd., is a motor manufacturer founded in 2016 and headquartered at the Red Star Creative Plaza in the Guangming district of Shenzhen, Guangdong province, China. The company designs and produces axial-flux and transverse-flux permanent-magnet synchronous motors, positioning itself around integrated drive systems that combine motors, servo drivers, and planetary reducers in a single package.
Semotor's catalog spans a range of axial-flux motor models, including the SETZ120-1QF (1.5 kW peak power, 603 Nm torque, 128 x 82 mm, 3 kg), the SETZ150-5CD (5 kW peak power, 1,050 Nm torque, 165 x 95 mm, 4.5 kg), the SETZ220-11CC (11 kW peak power, 1,800 Nm torque, 220 x 135 mm, 13 kg), and higher-speed models such as the SEmotor-17k (17 kW, 9,000 rpm) and SEmotor-100k (100 kW, 5,000 rpm). The company also offers a compact oil-cooled robot joint motor unit that it states delivers 200 Nm of output torque while weighing only 1.2 kg, developed in collaboration with the National Innovation Center for Humanoid Robotics. Semotor reports supplying joint-motor systems to more than 30 humanoid-robot companies in China and internationally, and its other product lines include disc-type servo motors, direct-current motors, and wheel-hub motor systems for unmanned ground vehicles and high-speed pump drives.
The company holds over 100 filed patent applications related to axial-flux motor technology, including 25 granted invention patents and more than 60 utility-model patents and registered software copyrights, and it reports research collaborations with the Chinese Academy of Sciences, China State Shipbuilding Corporation, and China Aviation-affiliated research institutes. In 2026 Semotor completed a Pre-A financing round of more than 100 million yuan led by Hengxu Capital with participation from Nanjing Venture Capital and the New Fourth Army Foundation, funds the company said would support axial-flux motor capacity expansion, robot joint-module iteration, and international market expansion.
Primary type & automation activities this supplier delivers:
Contact Semotor
WEBSITE
https://www.semotor.cnPHONE
+86 755 2321 9210HEADQUARTERS
China
Company Facts
Founded
2016
Primary Role
Component Supplier
Company Size
-
Primary Region
Asia-Pacific
Annual Sales
-
Funding Stage
Early-Stage VC
Funding Total
-
