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Quality SYT-RI60-70 factory
Quality SYT-RI60-70 factory
Quality SYT-RI60-70 factory
Quality SYT-RI60-70 factory

SYT-RI60-70

Basic Properties
Place of Origin: CHINA
Brand Name: SENINTER
Certification: CE ROHS
Model Number: SYT-RI60-70 CAN
Product Summary
Humanoid Robot Joint Module (Rotary Actuator) Structure – Core Components Output Flange / Connector – Connects to robot links (e.g., lower leg, forearm), outputs torque and motion. Torque Sensor (optional but common in high-performance designs) – Ring or spoke type, used for force control / ...

Product Details

OD: 70mm
Max. Torque: 66N·m
Max. Speed: 82RPM
Length: 72.5mm
Voltage: 24-48VDC
Weight: 0.73kg
Protocol: EtherCAT / CAN
Product Description

Humanoid Robot Joint Module (Rotary Actuator) Structure – Core Components 

Output Flange / Connector – Connects to robot links (e.g., lower leg, forearm), outputs torque and motion.

Torque Sensor (optional but common in high-performance designs) – Ring or spoke type, used for force control / collision detection.

Harmonic Drive – Consists of a wave generator, flexspline, and circular spline; mounted on the motor output shaft.

Frameless Torque Motor – Stator fixed to the housing, rotor connected to the wave generator.

Brake (Safety Holding Brake) – Locks the joint position when power is lost.

Dual Encoders – Motor-side encoder (measures speed/position) and output-side encoder (eliminates reducer backlash error); commonly used for full closed-loop control.

Driver (Servo Drive Board) – Integrated inside the module or in a compact package.

Housing / Cooling Structure – Aluminum alloy body with cable channels.

 SYT-RI60-70

Drawing without brake

SYT-RI60-70







  without brake Parameter Table

Parameter Unit Ratio 51 Ratio 81 Ratio 101 Ratio 121
Gear Ratio - 51 81 101 121
Peak Torque N·m 42 53 66 66
Max Allowable Torque At Average Load (Robot Application) N·m 32 33 49 49
Rated Torque @ 2000RPM (Industrial Application) N·m 19.8 27.5 30 30
Peak Output Speed RPM 82 51 41 32
Rated Speed (With 1/2 Rated Torque) RPM 68 43 34 24
Gear Backlash arcsec 20 20 10 10
Rated Power W 300 300 300 300
Supply Voltage V 24–48 24–48 24–48 24–48
Max Continuous Current A 6.7 6.7 6.7 6.7
Rated Current A 5 5 5 5
Torque Constant N·m/A 0.096 0.096 0.096 0.096
Encoder Resolution bit 16 16 16 16
Communication Bus - CAN CAN CAN CAN
Hollow Shaft Diameter mm 18 18 18 18
Total Length mm 72.5±0.5 72.5±0.5 72.5±0.5 72.5±0.5
Mass kg 0.73 0.73 0.73 0.73
Rotational Inertia g·cm² 394.8 394.8 394.8 394.8

Drawing with brake



SYT-RI60-70


With  brake Parameter Table


Parameter Unit Ratio 51 Ratio 81 Ratio 101 Ratio 121
Gear Ratio - 51 81 101 121
Peak Torque N·m 42 53 66 66
Max Allowable Torque At Average Load (Robot Application) N·m 32 33 49 49
Rated Torque @ 2000RPM (Industrial Application) N·m 19.8 27.5 30 30
Peak Output Speed RPM 82 51 41 32
Rated Speed (With 1/2 Rated Torque) RPM 68 43 34 24
Gear Backlash arcsec 20 20 10 10
Rated Power W 300 300 300 300
Supply Voltage V 24–48 24–48 24–48 24–48
Max Continuous Current A 6.7 6.7 6.7 6.7
Rated Current A 5 5 5 5
Torque Constant N·m/A 0.096 0.096 0.096 0.096
Encoder Resolution bit 16 16 16 16
Communication Bus - CAN CAN CAN CAN
Hollow Shaft Diameter mm 18 18 18 18
Total Length mm 93±0.5 93±0.5 93±0.5 93±0.5
Mass kg 0.88 0.88 0.88 0.88
Rotational Inertia g·cm² 492 492 492 492


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