Product Description
The SM series of high-performance intelligent bus-connected servos is a power solution designed for professional applications. It integrates brushless and coreless motor technologies, offering a wide torque range of 60-260 kg.cm. The entire series supports RS485/Modbus bus control and utilizes steel gears, ball bearings, and an aluminum alloy housing. It features a wide 9-25V input voltage and operates over a wide temperature range of -20°C to 80°C. These servos offer high torque density, fast response, low backlash, and long life, meeting the stringent requirements for precise power control in applications such as robotic joints, precision gimbals, and industrial automation.

Product parameters
Model | SM-60CL-C001 | SM-70BL-C001 | SM-80BL-C001 | SM-80BL-C002 | |
Product Name | 12V 60kg.cm | 24V 70kg.cm | 12V 80kg.cm | 24V 85kg.cm | |
Apply Environmental Condition | Storage Temperature Range | -30℃~80℃ | -40℃~70℃ | -30℃~80℃ | |
Operating Temperature Range | -20℃~60℃ | -40℃~70℃ | -20℃~60℃ | ||
Mechanical Specification | Dimensions | A:62mm B:34mm C:40mm | A:40mm B:20mm C:47.8mm | A:46.5mm B:28.5mm C:34mm | |
Weight | 180± 1g | 91.6±1g | 97.5±1g | ||
Gear Type | Steel | ||||
Limit Angle | NO limiter | ||||
Bearing Type | Ball bearings | ||||
Horn Type | 15T/OD7.6mm | 25T/OD5.9mm | 25T/OD5.9mm | ||
Gear Ratio | 1/254 | 1/356 | 1/353 | ||
Back Lash | ≦0.5° | ||||
The Rocker Phantom | 0° | ||||
Case | Aluminium | ||||
Connector Wire | 150mm ±5 mm(5264-4P) | - | 40CM | ||
The Rocker Screw | M3X6 | M3.0 | M3X6 | ||
Motor | Coreless motor | 4 Pole Brushless motor | 4 Pole Brushless motor | ||
Electrical Specification | Input Voltage Range | 9V-12V | 16.8V-25.2V | 9V-12.6V | 16.8V-25.2V |
No Load Speed ±10% | 0.286sec/60° 35RPM@12V | 0.13sec/60°(78RPM)@24V | 0. 161sec/ 60° (62RPM)@12V | 0. 142sec/ 60° (70RPM)@24V | |
No Load Current ±10% | 200 mA@12V | 180mA@24V | 280mA@12V | 180mA@24V | |
Peak Stall Torque | 60kg.cm@12V | 70Kg.cm@24V | 80kg.cm@12V | 85kg.cm@24V | |
834.7oz.in | 973.81oz.in | 1112.93oz.in | 1182.49oz.in | ||
Rated Torque | 20kg.cm@12V | 17.5kg.cm@24V | 20kg.cm@12V | 21kg.cm@24V | |
Stall Current | 2.6A@12V | 3.5A@24V | 5.9A@12V | 3.9A@24V | |
Idle Current (at Stopped) | 35mA@12V | 22mA@24V | 45mA@12V | 40mA@24V | |
Rated Current | 900mA@12V | 870mA@24V | 1475mA@12V | 975mA@24V | |
KM Constant | 16kg. cm/A | 20kg.cm/A | 13.5kg.cm/A | 21.79kg.cm/A | |
Terminal Resistance | 3.13Ω | 4.55 Ω | 1.38Ω | 4.47Ω | |
Control Specification | Command Signal | Bus Packet Communication RS485 | Digital Packet | Digital Packet | Digital Packet |
Protocol Type | Half duplex Asynchronous Serial Communication | ||||
ID Range | 0-253 | ||||
Communication Baud Rate | 38400bps ~ 1 Mbps | ||||
Control Algorithm | PID | ||||
Neutral Position | 180°(2048) | 180°(2047) | 180°(2047) | 180°(2048) | |
Rotation Angle | 360° (when 0~ 4096) | 360°(when 0~4095) | 360°(when 0~4095) | 360°(when 0~4096) | |
Rotation Direction | Clockwise(0→4096) | Clockwise(0→4095) | Clockwise(0→4095) | Clockwise(0→4096) | |
Electronic Resolution [deg/pulse] | 12Bits Magnetic Coding | 0.088°(360°/4095) | 0.088°(360°/4095) | 0.088°(360°/4096) | |
Feedback | Load, Position,Speed, InputVoltage,Current,Temperature | ||||
SM-60CL
Dimensions

Accessories

Performance

SM-70BL
Dimensions

Accessories

Performance

SM-80BL
Dimensions

Accessories

SM-80BL-C001 Performance

SM-80BL-C002 Performance
Model | SM-85CL-C001 | SM-8512BL | SM-8524BL-C001 | SM-8524BL-C002 | |
Product Name | 12V 85kg.cm | 12V 85kg.cm | 24V 85kg.cm | 24V 85kg.cm | |
Apply Environmental Condition | Storage Temperature Range | -30℃~80℃ | |||
Operating Temperature Range | -20℃~70℃ | ||||
Mechanical Specification | Dimensions | A:62mm B:34mm C:47mm | |||
Weight | 215± 1g | ||||
Gear Type | Steel | ||||
Limit Angle | NO limiter | ||||
Bearing Type | Ball bearings | ||||
Horn Type | 15T/OD7.6mm | ||||
Gear Ratio | 1/254 | ||||
Back Lash | ≦0.5° | ||||
The Rocker Phantom | 0° | ||||
Case | Aluminium | ||||
Connector Wire | 150mm ±5 mm | 40CM | 40CM | 40CM | |
The Rocker Screw | M3X6 | ||||
Motor | Coreless motor | Brushless Motor | Brushless Motor | Brushless Motor | |
Electrical Specification | Input Voltage Range | 9V-24V | |||
No Load Speed ±10% | 0.27sec/60°@12V 37RPM | 0.167sec/60°@12V | 0.154sec/60°@24V | 0.154sec/60°@24V | |
No Load Current ±10% | 200 mA@12V | 540 mA@12V | 250mA@24V | 250mA@24V | |
Peak Stall Torque | 85kg.cm@12V | ||||
1182.5oz.in | |||||
Rated Torque | 28kg.cm@12V | ||||
Stall Current | 3.2A12V | 7.9A@12V | 5.6A@24V | 5.6A@24V | |
Idle Current (at Stopped) | 35mA@24V | 35mA@24V | 35mA@24V | 35mA@24V | |
Rated Current | 1200mA@24V | 2000mA@24V | 1000mA@24V | 1000mA@24V | |
KM Constant | 20kg.cm/A | 13kg.cm/A | 25kg.cm/A | 25kg.cm/A | |
Terminal Resistance | 1.95Ω | 0.88Ω | 3.4Ω | 3.4Ω | |
Control Specification | Command Signal | Bus Packet Communi cation RS485 | Digital Packet | Digital Packet | Digital Packet |
Protocol Type | Half duplex Asynchronous Serial Communication | ||||
ID Range | 0-253 | ||||
Communication Baud Rate | 38400bps ~ 1 Mbps | ||||
Control Algorithm | PID | ||||
Neutral Position | 180°(2048) | ||||
Rotation Angle | 360°(when 0~4095) | ||||
Rotation Direction | Clockwise(0→4096) | ||||
Electronic Resolution [deg/pulse] | 0.088°(360°/4096) | ||||
Feedback | Position,Speed, | Load, Position,Speed, InputVoltage,Current,Temperature | |||
SM-85
(SM-85CL, SM-8512BL, SM-8524BL)
Dimensions

Accessories

SM-85CL Performance

SM-8512BL Performance

SM-8524BL Performance

Model | SM-120BL-C001 | SM-120BL-C003 | SM-160BL-C001 | SM-260BL-C001 | |
Product Name | 24V 120kg.cm | 24V 120kg.cm | 24V 160kg.cm | 24V 260kg.cm | |
Apply Environmental Condition | Storage Temperature Range | -30℃~80℃ | |||
Operating Temperature Range | -20℃~60℃ | -20℃~80℃ | -20℃~60℃ | -20℃~60℃ | |
Mechanical Specification | Dimensions | A:78mm B:43mm C:65.5mm | A:78mm B:43mm C:65.5mm | A:62mm B:34mm C:47mm | A:78mm B:43mm C:65.5mm |
Weight | 485g | 485g | 211± 3g | 455g±1g | |
Gear Type | Steel | ||||
Limit Angle | NO limiter | ||||
Bearing Type | Ball bearings | ||||
Horn Type | One character (OD10mm) | One character (OD10mm) | 15T/OD7.6mm | One character (OD10mm) | |
Gear Ratio | 1/232 | 1/232 | 1/232 | 1/232 | |
Back Lash | ≦0.8° | ≦0.8° | ≦0.5° | ≦0.8 | |
The Rocker Phantom | 0° | ||||
Case | Aluminium(7075) | Aluminium(7075) | Aluminium | Aluminium | |
Connector Wire | 300mm ±5 mm | 300mm ±5 mm | 40CM | 30CM | |
The Rocker Screw | M3X6 | ||||
Motor | Brushless motor | Brushless motor | 4 Pole Brushless Motor | 4 Pole Brushless motor | |
Electrical Specification | Input Voltage Range | 9V-25V | 9V-25V | 16.8V-25.2V | 12V-25.2V |
No Load Speed ±10% | 0.2sec/ 60degree 50RPM@24V | 0.2sec/ 60degree 50RPM@24V | 0.181sec/60°@24V | 0.192sec/ 60° 52RPM@24V | |
No Load Current ±10% | 200 mA@24V | 200 mA@24V | 250mA@24V | 320 mA@24V | |
Peak Stall Torque | 120kg.cm@24V | 120kg.cm@24V | 160kg.cm@24V | 260kg.cm@24V | |
1669.4oz.in | 1669.4oz.in | 2225.87oz.in | 3617.04oz.in | ||
Rated Torque | 32kg.cm@24V | 32kg.cm@24V | 40kg.cm@24V | 465kg.cm@24V | |
Stall Current | 4A@24V | 4A@24V | 9A@24V | 9.1A@24V | |
Idle Current (at Stopped) | 40mA@24V | 40mA@24V | 25mA@24V | 25mA@24V | |
Rated Current | 1A@24V | 1A@24V | 2A@24V | 2200mA@24V | |
KM Constant | 30kg.cm/ | 30kg. cm/A | 20kg.cm/A | 28.5kg. cm/A | |
Terminal Resistance | 2.8Ω | 2.8Ω | 2.1Ω | 2.0 Ω | |
Control Specification | Command Signal | Bus Packet Communication RS485 | Bus Packet Communication RS485 | Digital Packet | Digital Packet |
Protocol Type | Half duplex Asynchronous Serial Communication | Modbus-RTU | Half Duplex Asynchronous Serial Communication | Half Duplex Asynchronous Serial Communication | |
ID Range | 0-253 | ||||
Communication Baud Rate | 38400bps ~ 1 Mbps | ||||
Control Algorithm | PID | ||||
Neutral Position | 180°(2048) | ||||
Rotation Angle | 360°(when 0~4096) | ||||
Rotation Direction | Clockwise(0→4096) | ||||
Electronic Resolution [deg/pulse] | 0.088°(360°/4096) | 12Bits Magnetic Coding(360° /4096 ) | 0.088°(360°/4096) | 12Bits Magnetic Coding(360° /4096 ) | |
Feedback | Load, Position,Speed, Input Voltage,Current,Temperature | ||||
SM-120BL / SM-260BL
Dimensions (SM-120BL/SM-260BL)

Accessories (SM-120BL/SM-260BL)

SM-120BL Performance

SM-260BL Performance

SM-160BL
Dimensions

Accessories

Performance

Product Display
Full-angle adaptive mounting
Multi-turn, unlimited rotation
Real-time feedback and protection for all parameters
Adjustable PID parameters
High-precision magnetic encoder positioning
Multi-mode intelligent control
RS485 bus daisy chain networking
Quality Control
This product undergoes rigorous quality control before leaving the factory. From the meticulous selection of core components to the high-precision manufacturing and assembly of the motor and gear train, every detail is ensured to be tight and reliable. Comprehensive performance testing precisely verifies torque, angular accuracy, and response speed, and verifies stability in harsh environments such as high and low temperatures, humidity, and vibration. All products undergo long-term endurance cycling and numerous electrical tests, including voltage, current, and electromagnetic compatibility tests, ensuring that each servo delivers superior performance and durability, providing you with a reliable and secure motion control experience.
Application Cases
Logistics:
Conveyor equipment, shuttle operations
Medical:
Cell sorters, robotic surgical manipulators
Smart home:
Camera rotation, toilet lid opening and closing
Robotics:
Joint movement, robotic arm operation
Smart devices: Smart storage,
manufacturing machine operations
Industrial: Automated production lines,
assembly equipment linkage










