RJSII Series

Bestseller

• Second-gen joint modules, available in various specifications, for quick assembly of your robot
• Classic style, powerful performance, high reliability
• Brand-new structural design, excellent heat dissipation performance
• Operating temperature range of -20°C to 50°C, suitable for harsh weather conditions
• Powerful output, maximum torque options ranging from 50 to 1500N·m
• IP54 protection level (IP65 optional), suitable for demanding working environments

• Provide customized services for products and solutions

Application ScenariosSpecific Cases >

Collaborative Robots, Medical Robots, Precision Turntables, Automation Equipment, etc

1.04kgSelf-Weight
66mmMinimum Diameter
557N·mMaximum Average Load Torque
<60arcsecRepeatability
8000+Shipping Volume

RJSII-14S

Diameter: 66mm
Weight: 1.04kg
Average load torque: 10.5N·m
Rated speed: 30rpm

RJSII-14

Diameter: 76mm
Weight: 1.6kg
Average load torque: 13.5N·m
Rated speed: 30rpm

RJSII-17

Diameter: 90mm
Weight: 2.6kg
Average load torque: 49N·m
Rated speed: 19.8rpm

RJSII-25

Diameter: 116mm
Weight: 4.5kg
Average load torque: 133N·m
Rated speed: 24.8rpm

RJSII-32

Diameter: 152mm
Weight: 8.6kg
Average load torque: 267N·m
Rated speed: 12.4rpm

RJSII-40

Diameter: 184mm
Weight: 15kg
Average load torque: 557N·m
Rated speed: 16.5rpm

Upgraded with Premium Craftsmanship, High Cost-Effectiveness

Significant performance boost, higher accuracy, increased torque, and smoother, safer operation

Basic Product Parameters

Specifications

Drawings

Download

Category	Unit	RJSII-14S	RJSII-14	RJSII-17	RJSII-20	RJSII-25	RJSII-32	RJSII-40
Parameters of Harmonic Drive Reducer
Reduction Ratio	--	100	101	101	101	101/121	121	121
Gearbox Backlash	arcsec	＜10	＜10	＜10	＜10	＜10	＜10	＜10
Transmission Accuracy	arcmin	＜1	＜1	＜1	＜1	＜1	＜1	＜1
Average Lifespan	Hour	20000	20000	20000	20000	20000	20000	20000

Output Capability
Permissible Starting and Stopping Torque	N·m	26	34	66	102	194/207	459	800
Average Load Torque	N·m	10.5	13.5	49	61	133	267	557
Maximum Instantaneous Torque	N·m	51	66	134	182	351/376	848	1458
Maximum Allowable Bending Torque	N·m	20	41	72	140	243	460	600
Rated Speed	rpm	30	30	19.8	26.7	29.7/24.8	12.4	16.5
Maximum Speed	rpm	55	45	28.7	39.6	37.6/31.4	15.5	20
Repeatability	arcsec	<60	<60	<60	<60	<60	<60	<60
Absolute Positioning Accuracy	arcsec	<200	<200	<200	<200	<200	<200	<200

Servo System
Motor Power	W	65	129	148	282	400	800	1450
Rated Voltage	VDC	48	48	48	48	48	48	48
Rated Current	A(rms)	3.6	4.8	5.7	9.5	11.5	19.6	33.7
Peak Current	A(rms)	10.8	14.4	17.1	27.25	28.75	40	67.4
Incremental Encoder	P/R	20000	20000	20000	20000	20000	20000	20000
Absolute Encoder	Bit	17	17	17	17	17	17	17
Communication Protocol	--	CANopen/EtherCAT

Dimensions
Joint Diameter	mm	66	76	90	96	116	152	184
Joint Length	mm	114	122	139	131	149	181	209
Through Hole Diameter	mm	6.5	7.5	12	12	12	14	15
Joint Weight	kg	1.04	1.6	2.6	3.1	4.5	8.6	15

Other Specification
Brake		24/12VDC Electromagnetic Friction Type
IP Degree		IP54(IP65 optional)
Operating Environment		Operating Temperature: 0 to 50°C (Optional: -40 to 60°C) Storage Temperature: -40 to 80°C Ambient Humidity: 90% Relative Humidity (Non-condensing)

"Note: We offer OEM customization services. If you have any other technical requirements, please contact us for consultation."