servo motor

eRob 80F

Rotary Actuator

eRob 80F,servo motor

Features:

Tiny and Precise
Outer diameter: 80mm
Length: 57.5mm
Weight: 0.89kg
Max.Torque: 71N·m
Max.Speed: 60RPM

8 Core components

Absolute encoder for motor,Multiturn absolute encoder for output shaft,Servo motor,Servo driver Temperature sensor,Fricition brake,Virtual Torque Sensor on output shaft,Precision strain wave gear（SWG）,servo motor. Absolute Encoder for Motor Multiturn Absolute
Encoder for Output Shaft Servo Motor High Precision
Strain Wave Gear Servo Driver
Temperature Sensor Friction Brakes Virtual Torque Sensor
on Output Shaft

Advantages

More compact — axial height reduced to 57.5 mm

Up to 6.7–26.7 mm shorter compared with the existing product portfolio


More powerful — higher torque density

Ultra-flat strain wave gearing enables highly efficient torque output

Performance Comparison per Unit Volume of eRob 80F V4 and eRob 70I V5
Rated torque
(Nm)/Unit Volume (cm³)
80F V417-100
70I V514-100
80F V417-50
70I V514-50
Permissible max.value at average load torque(Nm)(Nm)/Unit Volume (cm³)
80F V417-100
70I V514-100
80F V417-50
70I V514-50
0.083
0.057
0.057
0.040
0.139
0.080
0.093
0.052
Performance Comparison per Unit Mass of eRob 80F V4 and eRob 70I V5
Rated torque
(Nm)/Weight(kg)
80F V417-100
70I V514-100
80F V417-50
70I V514-50
Peak torque for start and stop
(Nm)/Weight(kg)
80F V417-100
70I V514-100
80F V417-50
70I V514-50
17.978
12.195
12.360
8.537
30.337
17.073
20.225
10.976
Performance Comparison per Unit Length of eRob 80F V4 and eRob 70I V5
Permissible maximum momentary torque(Nm)
/length(mm)
80F V417-50
70I V514-50
Rated torque(Nm)
/length(mm)
80F V417-50
70I V514-50
Permissible max.value at average load torque(Nm)
/length(mm)
80F V417-50
70I V514-50
Peak torque for start and stop(Nm)
/length(mm)
80F V417-50
70I V514-50
0.835
0.648
0.191
0.099
0.313
0.127
0.400
0.324

More stable — excellent overall thermal control

Only ~1 °C temperature rise after 24 hours of continuous operation


*Under the same operating conditions at room temperature (25 °C), the eRob80F_V4 reaches temperatures of 52.1 °C, 52.2 °C, and 52.8 °C after 1, 6, and 24 hours of continuous operation, respectively — rising only ~1 °C over 24 hours.

Normal operating temperature remains stable between 50 °C and 55 °C.

Product Data

Model
eRob80FXXI
Strain wave gear-ratio
17-50
17-100
Peak torque for start and stop(Nm)
23
37
Permissible max.value at average load torque(Nm)
48
71
Rated torque(Nm)
18
27
Permissible maximum momentary torque(Nm)
11
16
Max. output rotational speed(RPM)
60
30
Motor power(W)
126
Power Input Voltage(V)
48V (±10%)
Please make sure to read "Comparison of Switching Power Supply and ePower" and the “eRob Rotary Actuator User Manual” Chapter 3, for clear instructions on powering the eRob module.
Strain wave gear output inertia(g-mm2)
107809
Strain wave gear output mass(KG)
0.172
Outer diameter*length
80*57.5mm
Strain wave gear input inertia(g-mm2)
29818
Strain wave gear input mass(KG)
0.129
Weight(KG)
0.89
Common parameters
ID: 18mm, IP grating:IP54*, Brake model: friction brake
Optional device
Communication type: EtherCAT / CANopen/Modbus, Output encoder resolution: 19Bit. Repeatability/Accuracy: ±7/±15 arc seconds or ±10/±25 arc seconds.
EtherCAT version rotary actuator
Optional interface: RS485, Pulse/DIR, I/O, ±10V Analog and STO.
CANopen version rotary actuator
Optional interface: RS485, Pulse/DIR, I/O, ±10V Analog and STO.

Benefits

Built-in servo driver. Communication protocols

Built-in servo driver. Communication protocols

With EtherCAT, CANopen, Modbus communication protocols.

Position,Speed, Current loop PID adjustable in real-time.

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

Built-in dual absolute encoder. Dual loop position control

19bit 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

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.

Applications

Application in Laparoscopic Surgical Robots.

Application in Laparoscopic Surgical Robots

ZeroErr eRob rotary actuator's application in exoskeleton robot.

Motion Control Scheme for Exoskeleton Robot

ZeroErr's Motion Control Scheme for Humanoid Robots, 26 eRob series rotary actuators have been applied.

Application in Humanoid Robots

ZeroErr eCoder series encoder is widely used in the field of medical devices, such as gastrointestinal endoscopy, with excellent performance of high safety and accuracy.

Application in Medical Devices Gastrointestinal Endoscopic

Cobots are the latest technology in robotics and have changed the world of automation significantly. The name cobot is a derivative of "collaborative robot".

Actuators, build cobots fast

At analytica China 2020, MegaRobo released the first bio-safety 7-axis collaborative robot MRS-03 in China. This robot is based on MegaRobo motion control and ZeroErr robot actuators.

Application in the First Domestic Bio-safety 7-axis Cobot

Solutions

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Downloads

Products

Software

Certificates

Data Sheet
eRob 2D&3D
eRob User Manual
Communication Manual
ZeroErr Product Brochure
eTuner Debugging Software
eRunner Motion Control Software
Certificates

Related tools

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*For details on accuracy.see Robotic Rotary Actuator Accuracy Test Report

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