Frameless Robot Joint Motor for 6-Axis Robotic Arm

This eRob series robot joint module is a standardized joint module product based on our own servo drives and absolute encoders ,based on  years of experience in serving customers , making robot development easier , faster ,safer . 

This eRob series robot joint modules include eRob70,eRob80, eRob90,eRob110, eRob142, eRob170 etc, with exquisite design and compact structure.The compact size include servo drivers , motor side absolute value encoder , output side absolute value encoder , and frameless torque motor , brake , precision harmonic reducers and other main components , which save customers hundreds of mechanical and electronic compenents selection ,design , producement ,assembly labor and time costs . 

1.Save the manpower and time cost of selecting, designing, purchasing and assembling hundreds of mechanical and electronic devices.

This series robot joint module includes Eight core components as below, motor end absolute value encoder, multi-turn absolute encoder at output, Frameless Torque Motor, precise harmonic reducer,Torque sensor, friction brake retainer and DC drive temperature sensor.


Various specifications and sizes for robot joint modules


Built-in servo driver. Communication protocols
With EtherCAT, CANopen, Modbus communication protocols.
Position,Speed, Current loop PID adjustable online.
Built-in ± 10V analog input.
Pulse and direction, I/O, RS485,
External encoder and STO interface,
All in the space of DxL=70x67mm

Built-in dual absolute encoder. Dual loop position control 
19/20-bit absolute multiturn encoder for output shaft.
Repeatability up to ±7 arc seconds.
Absolute accuracy up to ±15 arc seconds.
Always have real absolute position,
and multi-turn counter when power-off.

Friction brake inside
Brake smooth and stable.
No gap; No backlash.
No need to move when power-on.
No wear and tear.
Can be used as Emergency Stop.

Packaging list

1. eRob joint module*1
2.48V power connector (2Pin)*2
3.CANopen connector and wiring (3 Pin)*2
4.EtherCAT connector and wiring (4Pin)*2
5.I/O connector and wiring (12Pin)-Optional

This kind of robot joint modules could be used for Motion Control Scheme for Exoskeleton Robot, Medical Devices Gastrointestinal Endoscopic, Medical rehabilitation robot, Bigdog, Industrial robot arm, welding robot etc.

Zhengzhou Defy Mechanical&Electrical Equipment Co., Ltd is a professional manufacturer of Robotic Joint Module. Our factory dedicates to the research of harmonic reducer and robot joint motor since 2010s,more than 10 years' experience makes our product quality rank in the leading position in China. With an annual output of 10,000 sets of various products for the market, with high precision and stable performance, our robotic joint modules are welcomed by customers from India, Thailand, lran, South Korea, Russian Federation, Sweden, Ireland, Poland, USA,Canada, France and so on.

1. We accept small order of robot joint modules;
2. Sample order of robot joint modules delivery time is in 10 days, mass quantity order lead time is 7-15 days;
3. We can accept payment via paypal, T/T and L/C;
4.Quality assurance of our robot joint modules is 1 year, and we can provide you professional technical support;
5. We provide free software wand training how to use the robot joint modules. Engineers are available for technical support.

Q: Are you trading company or manufacturer?
A: We are manufacturer and trading company.

Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.

Q: How long is your delivery time?
A: Due to the complex process, production takes 8-10 working days. For customized goods, please check with us before order.

Q. How do you ship the goods and how long does it take to arrive?
A: Usually by express, like DHL, UPS, FedEx, EMS or TNT; By air and sea are also available.
Express takes 3-15 days to arrive.

Q: What is your terms of payment?
A: We accept Trade Assurance Order, TT, Paypal, West Union and L/C.