Zhejiang Zhongjian Technology Co., Ltd. 浙江中坚科技股份有限公司
Zhejiang outdoor power equipment maker pivoting into quadruped robot dogs and autonomous lawn-mowing robots.
Zhejiang Zhongjian Technology Co., Ltd., trading under the brand TOPSUN, is headquartered in the Yongkang Economic Development Zone of Zhejiang Province, China. Founded in 1997 as the successor to Yongkang Zhongjian Tool Manufacturing Co., Ltd. and affiliated with the China Zhongjian Electromechanical Group, the company has grown to more than 800 employees and is listed on the Shenzhen Stock Exchange under ticker 002779. It holds designations as a National High-Tech Enterprise and a Zhejiang Province Green Enterprise.
The company's core business is outdoor power equipment: gasoline chainsaws, string trimmers and brush cutters, leaf blowers, hedge trimmers, ride-on lawn tractors, generators, and a line of 20V/40V/60V lithium-battery garden tools sold under the TOPSUN brand.
Since 2024, TOPSUN has extended this outdoor-equipment expertise into robotics. Under the JAMII ROBOT brand it introduced the Lingrui P1 quadruped robot, which the company states can cross obstacles higher than 25 centimeters and slopes up to 45 degrees, carries a 30-kilogram payload for up to four hours of walking (six hours unloaded), and is rated IP67 for operation between -20C and 55C, with dual Ethernet, dual USB-C, and 12V/24V power interfaces. Alongside it, the Goatbot UNICUT H1 autonomous lawn-mowing robot combines RTK and visual SLAM for centimeter-level positioning, cuts a 24-centimeter swath at a working speed of 0.40 meters per second, offers cutting-height adjustment from 25 to 65 millimeters, and runs about two hours per charge on a 20V 5.1Ah battery. Both machines were shown publicly at the 2024 World Robot Conference. Chinese media coverage has noted that, as of the most recent public reporting, both the robot dog and the mowing robot remain in application testing rather than full commercial mass production.
TOPSUN frames its robotics line as part of a broader strategic transformation toward new-generation productive forces, extending decades of experience in outdoor power machinery, motors, and battery systems into legged and autonomous mobile platforms.
Primary type & automation activities this supplier delivers:
Lingrui P1
- Model: P1
- Launch Year: 2024
Quadruped robot dog with IP67 protection, 25cm obstacle clearance, and 4-hour runtime at 30kg payload.
Goatbot UNICUT H1
- Model: UNICUT H1
- Launch Year: 2024
Autonomous lawn mower with 24cm cutting width, RTK+VSLAM centimeter-level positioning, 2-hour runtime.
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Contact Zhejiang Zhongjian Technology Co., Ltd.
WEBSITE
https://www.topsunpower.cc/HEADQUARTERS
China
Company Facts
Founded
1997
Primary Role
Manufacturer
Company Size
employees 500-1000
Primary Region
Asia-Pacific
Annual Sales
-
Funding Stage
Public
Funding Total
-
