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SYT-RI40-52

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SYT-RI40-52

Name: SYTRI4052
Brand: SENINTER
Price: 1 USD

Length : 62.5mm

Voltage : 24-48VDC

Protocol : EtherCAT / CAN

Brand Name : SENINTER

OD : 52mm

Weight : 0.32kg

Place of Origin : CHINA

Max.Torque : 11N·m

Certification : CE ROHS

Model Number : SYT-RI40-52 CAN

Max.Speed : 118RPM

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SYT-RI40-52

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.

Drawing without brake

SYT-RI40-52

without brake Parameter Table

Parameter	Unit	Ratio 51	Ratio 101
Gear Ratio	-	51	101
Peak Torque	N·m	8.3	11
Max Allowable Torque At Average Load (Robot Application)	N·m	5.5	8.9
Rated Torque @ 2000RPM (Industrial Application)	N·m	3.5	5
Peak Output Speed	RPM	118	59
Rated Speed (With 1/2 Rated Torque)	RPM	80	40
Gear Backlash	arcsec	40	30
Rated Power	W	90	90
Supply Voltage	V	24–48	24–48
Max Continuous Current	A	3	3
Rated Current	A	2	2
Torque Constant	N·m/A	0.05	0.05
Encoder Resolution	bit	16	16
Communication Bus	-	CAN	CAN
Hollow Shaft Diameter	mm	12	12
Total Length	mm	62±0.5	62±0.5
Mass	kg	0.32	0.32
Rotational Inertia	g·cm²	73	73

Drawing with brake

SYT-RI40-52

With brake Parameter Table

Parameter	Unit	Ratio 51	Ratio 101
Gear Ratio	-	51	101
Peak Torque	N·m	8.3	11
Max Allowable Torque At Average Load (Robot Application)	N·m	5.5	8.9
Rated Torque @ 2000RPM (Industrial Application)	N·m	3.5	5
Peak Output Speed	RPM	118	59
Rated Speed (With 1/2 Rated Torque)	RPM	80	40
Gear Backlash	arcsec	40	30
Rated Power	W	90	90
Supply Voltage	V	24–48	24–48
Max Continuous Current	A	3	3
Rated Current	A	2	2
Torque Constant	N·m/A	0.05	0.05
Encoder Resolution	bit	16	16
Communication Bus	-	CAN	CAN
Hollow Shaft Diameter	mm	12	12
Total Length	mm	82±0.5	82±0.5
Mass	kg	0.42	0.42
Rotational Inertia	g·cm²	116.2	116.2

SYT-RI40-52 Images

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