ZeroErr Control Co., Ltd. 零差云控（深圳）科技股份有限公司
ZeroErr designs and manufactures all-in-one robotic rotary actuators (eRob) and magnetic encoders (eCoder) for collaborative, humanoid, and surgical robots.
ZeroErr Control Co., Ltd. (brand: ZeroErr; global entity: ZeroErr Global Limited) is a Shenzhen-based developer and manufacturer of integrated robotic joint modules and magnetic encoders, founded in December 2016. The company's flagship product line is the eRob series of all-in-one rotary actuators, which integrate a servo motor, harmonic gear reducer, dual absolute encoders, servo driver, and optional electromagnetic brake into a single compact housing. eRob modules support EtherCAT, CANopen, Modbus, RS485, Pulse/DIR, and analog I/O communication interfaces, and offer positional repeatability of plus or minus 7 to 15 arc-seconds. The product range spans from the eRob 70 (70 mm outer diameter, 35-70 N·m peak torque) to the eRob 142 (142 mm OD, up to 892 N·m peak torque), covering joint requirements from lightweight collaborative robot arms to heavy-duty humanoid legs.
Complementing the actuator line is the eCoder series of contactless magnetic encoders ranging from 11 mm to 65 mm in diameter with 19-bit to 21-bit resolution and accuracy as fine as plus or minus 2.5 arc-seconds (eCoder 35H). Power supply and connectivity accessories include the ePower chassis supply (400 W, 800 W, and 1500 W variants) and the eHub communication hub. In September 2025, ZeroErr received the industry's first CR certification for humanoid robot integrated joints (standard CR-3-05TS:2025) issued by CRAT Testing and Certification Co., Ltd. The company has shipped over 50,000 joint modules to more than 2,000 robotics and technology companies globally.
ZeroErr holds Series C funding at a valuation exceeding RMB 1 billion (approximately USD 140 million), with investors including Shenzhen CDF Capital, Tsinghua Holdings Capital, Jameho Investment, and Amber Capital. The company is a member of the EtherCAT Technology Group and A3 Association for Advancing Automation, and complies with EU EMC Directive 2014/30/EU for CE marking.
Primary type & automation activities this supplier delivers:
eRob 70F Rotary Actuator
70mm all-in-one joint module with servo motor, harmonic drive, dual encoder, and servo controller.
eRob 110I Rotary Actuator
110mm all-in-one joint module delivering 408 N·m peak torque for heavy-duty robot arms.
eRob 142I Rotary Actuator
142mm all-in-one joint module with 892 N·m peak torque for humanoid and industrial robots.
eCoder 35H Magnetic Encoder
21-bit contactless magnetic encoder with +-2.5 arc-second repeatability for robotic joints.
Contact ZeroErr Control Co., Ltd.
WEBSITE
https://www.zeroerr.comHEADQUARTERS
China
Company Facts
Founded
2016
Primary Role
Manufacturer
Company Size
-
Primary Region
Asia-Pacific
Annual Sales
-
Funding Stage
-
Funding Total
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Certifications & Memberships
