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Techsoft robots(Shenzhen) Co., Ltd. founded in 2008, has accumulated more than ten years of experience in the development of core technologies of motors and servo drives, production, and application of the servo products。Techservo now have servo driver's core independent... learn more
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RJU series joint modules-for business and life service applications

A brand new robotic joints, different from RJS , RJSII , SHD and other traditional shapes, but a joint that can give robots more design space and application field, customers can locate according to their product direction.

Open and friendly, easy to operate

• Modular design, a compact new generation of joint modules, its weight, size, installation mode, appearance, and other relative RJS have been greatly optimized
• For the joint robotic produced by the customer in the later period, more design space is provided, the diversity of installation methods is provided, and more application space is provided for the robot
• According to the orientation of the company's robot, it can locate various protection levels more freely, which also gives the robot more possibilities

Focus on R&D and production of robotic joint
with excellent performance

More independent design space to help you quickly develop and manufacture your articulated robot, enter the market and seize the opportunity

Repeated positioning is more accurate
Double encoder feedback for precise position control
Modular design
Large hollow design, more compact structure, more compact
High protection level, more secure
Comprehensive safety protection design of the drive
Low power design, more energy efficient
RJU14 normally works at a minimum of only 20W, and the power consumption of a 3KG co-robot is about 150W under normal conditions.
Optional communication
Support EtherCAT, CANopen communication optional，
Support OEM customized services
Provide customers with efficient OEM customized services, tailored to customer needs

Product advantages

Customers can assemble and design their robots according to actual needs, shorten the development cycle of robots,
and quickly bring a return on investment. Products are widely used in the market and look forward to your arrival

Modular design
RJU joint modules integrate harmonic reducer, motor, brake, dual encoder, driver in a small, compact structure to meet the needs of more application markets
Wide range of applications
There are a wide range of applications, and customers can freely design product appearances according to actual needs, such as (automation equipment, collaborative robots, medical robots, AGV cars, etc.)
Innovative design
The RJU series of jointless modules without shells are aimed at the needs of customers, allowing customers to better design joint shells and produce their joint robots through their product concepts and actual needs.
Safe and smooth
The RJU series joint module can feedback various information such as the position, speed, current, and torque of each joint to the control system in real-time.
Cost-effective
We always provide you with high-quality products and services, which gives us an excellent reputation in the industry, and you can get high-quality products at affordable prices.
Long lasting
The RJU joint module has undergone a 7 * 24 hours aging test before leaving the factory, which guarantees the reliability of each joint module and the service life is up to 30,000 hours.
Outstanding performance
RJU joint modules are strong and powerful at low speed, quiet and stable at high speed, and can output smoothly under extreme load conditions. The maximum continuous output torque is 10 ~ 450N · m.

Quickly build a robot

Helps you save time and labor costs in robot design, parts selection, performance testing, and more

Harmonic reducer
Small size and light weight
Smooth torque output
Low noise and low vibration
Stable and efficient performance
Motor
Low torque ripple, low inertia
High torque density output
High precision, high rigidity, and better response speed
Driver
Support EtherCAT / CANopen optional Ultra-thin intelligent integration, smooth operation, and fast response Excellent performance and precise control
Dual encoder
Ultra-thin design and compact structure
High resolution and high precision
Absolute multiturn

RJU Joint model description

RJUZ
-20
-100
-20
B1
-SA17
-D1
E
-T
-A1

Series	Model	Reduction ratio	Motor stator length	Brake	Absolute Encoder	Drive Model	Default allocation	Torque sensor	Version number
RJU (With L-shaped housing) / RJUZ (Without case) / RJUC (Straight type housing)	14	100-1：101	20	B1： Plug-in brake	S:Single turn A:Absolute 17:Encoder	D1：RDM	E: EtherCat	T：Torque sensor	A1：Design version number
	17
	20	120-1：121
	25						C:CANopen
	32	160-1：161
	40

Example：

Joint model：RJUZ-20-100-20B1-SA17-D1E-T-A1

Basic parameters

Parameters

Drawings

Download

Basic performance
Parameter	Units	RJU14/Z	RJU(Z)17	RJU(Z)20	RJU(Z)25
Average torque	Nm	34	66	102	194
Rated Load Torque	Nm	9.6	30	50	84
Peak torque	Nm	66	134	182	351
Rated speed	rpm	29.7	29.7	29.7	19.8
Maximum speed	rpm	47.5	35	35	37.6
Electrical performance
Rated power	W	118	146	210	400
Rated voltage	VDC	48	48	48	48
Rated current	A	4.7	5.7	7	11.5
Peak current	A	11.75	14.25	17.5	28.75
Communication	--	EtherCAT/CANopen
Mechanical properties
Diameter	kg	1.14	1.75	1.96	3.2
Length	mm	70	80	92	110
Weight	mm	125	134	136	150
Brake	--	Plug-in (UR type) ）
Incremental Encoder	--	17bit Singleturn absolute encoder
Absolute Encoder	P/R	20000	20000	20000	20000
Gear ratio	--	101	101	101	101