Harmonic proServo Flexible Servo Joints

With Harmonic Reducer

For Collaborative Robotics, 3C Assembly, and Bionic Applications.

Harmonic ProServo products are a new generation of micro-integrated flexible servo joints, featuring built-in servo drives that eliminate the need for external controllers. Adopting high-precision harmonic reducers and high energy-density torque motors. Combining with self-developed motion control algorithms.

Harmonic ProServo products are a new generation of micro-integrated flexible servo joints, featuring built-in servo drives that eliminate the need for external controllers. Adopting high-precision harmonic reducers and high energy-density torque motors. Combining with self-developed motion control algorithms.

Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph08
Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph08

COSTR. ProServo PH08

Micro Servo Joint with Harmonic Reducer

Ø 40mm; Length 47.5mm; 188g

Rated Voltage: 24-36 V;

Rated Power: 36W

Rated Speed: 65 rpm / 33 rpm

Rated Torque: 1.1 Nm / 1.6 Nm

Reduction Ratio: 51:1 / 101:1

Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph11
Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph11

COSTR. ProServo PH11

Micro Servo Joint with Harmonic Reducer

Ø 52mm; Length 67.7mm; 495g

Rated Voltage: 24-36 V;

Rated Power: 60W

Rated Speed: 60 rpm / 30 rpm

Rated Torque: 6.6 Nm / 8.6 Nm

Reduction Ratio: 51:1 / 101:1

Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph14
Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph14

COSTR. ProServo PH14

Micro Servo Joint with Harmonic Reducer

Ø 70mm; Length 77.5mm; 1108g

Rated Voltage: 24-48 V;

Rated Power: 120W

Rated Speed: 58 rpm / 30 rpm

Rated Torque: 18 Nm / 22 Nm

Reduction Ratio: 51:1 / 101:1

Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph17
Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph17
Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph17

COSTR. ProServo PH17

Micro Servo Joint with Harmonic Reducer

Ø 80mm; Length 88.3mm; 1350g

Rated Voltage: 24-48 V;

Rated Power: 130W

Rated Speed: 58 rpm / 30 rpm

Rated Torque: 30 Nm / 38 Nm

Reduction Ratio: 51:1 / 101:1

Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph20
Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph20

COSTR. ProServo PH20

Micro Servo Joint with Harmonic Reducer

Ø 90mm; Length 88.3mm; 1991g

Rated Voltage: 24-48 V;

Rated Power: 250W

Rated Speed: 40 rpm / 26 rpm

Rated Torque: 52 Nm / 78 Nm

Reduction Ratio: 81:1 / 121:1

Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph25
Costr-proServo-Harmonic-Gear-Motor-Micro-Servo-Robot_joint-ph25

COSTR. ProServo PH25

Micro Servo Joint with Harmonic Reducer

Ø 110mm; Length 98.5mm; 3098g

Rated Voltage: 24-48 V;

Rated Power: 500W

Rated Speed: 30 rpm / 24 rpm

Rated Torque: 96 Nm / 144 Nm

Reduction Ratio: 81:1 / 101:1

Key Features

Harmonic proServo Flexible Servo Robot Joints are designed for high-precision tasks such as collaborative robotic arms and 3C product assembly, and are also suited for bionic robots and 5G teleoperation.

- Compact and lightweight
- High precision and stability
- Modular and easy to integrate
- Open software system
- Drag-to-teach and anti-collision support

APIs and Integration

Harmonic proServos feature built-in motion control, high-precision harmonic reducers, and compact torque motors. Our self-developed APIs covers flexible control, path planning, and trajectory interpolation. They are compatible with Linux (ROS), Windows, and Android for fast and cost-efficient integration.

Designed and manufactured by Costr Motor Technology, a leading innovator in China’s motion control industry, these joints have already been adopted by numerous enterprises in the industrial sector.

Contact us for customization and procurement.

Model Numbering Rules for Servo Joints

E30

H11

XXX

30 type integrated joints, 11 harmonic reducers, 50 speed ratio.

Reducer speed ratio: 50/80/100/120 and other speed ratios.

Reducer model: H is harmonic reducer, P is planetary reducer, there are 03/05/08/11/14/17/20/25 models.

Product series: E stands for product series, numbers represent models, there are 10/20/30/60/80 models.

E30

H11

XXX

30 type integrated joints, 11 harmonic reducers, 50 speed ratio.

Reducer speed ratio: 50/80/100/120 and other speed ratios.

Reducer model: H is harmonic reducer, P is planetary reducer, there are 03/05/08/11/14/17/20/25 models.

Product series: E stands for product series, numbers represent models, there are 10/20/30/60/80 models.

Empowering Smart, Practical Automation.

COSMOTR GLOBAL TECHNOLOGY SOLUTIONS PTY LTD

Email: info@cosmotrglobal.com

Level 16, 175 Pitt Street Sydney, NSW 2000 Australia

© 2025 Cosmotr Global Technolog Solutions Pty Ltd | ACN 123 456 789 | All rights reserved.

Empowering Smart, Practical Automation.

COSMOTR GLOBAL TECHNOLOGY SOLUTIONS PTY LTD

Email: info@cosmotrglobal.com

Level 16, 175 Pitt Street Sydney, NSW 2000 Australia

© 2025 Cosmotr Global Technolog Solutions Pty Ltd | ACN 123 456 789 | All rights reserved.

Empowering Smart, Practical Automation.

COSMOTR GLOBAL TECHNOLOGY SOLUTIONS PTY LTD

Email: info@cosmotrglobal.com

Level 16, 175 Pitt Street Sydney, NSW 2000 Australia

© 2025 Cosmotr Global Technolog Solutions Pty Ltd | ACN 123 456 789 | All rights reserved.