PRODUCT PREVIEW
eRob80I
A compact, powerful rotary actuator.
eRob80I is a compact, powerful rotary actuator with a performance-matched brushless servo motor. A motor-side friction brake provides strong, stable holding without power or in emergency conditions. The integrated servo driver supports EtherCAT and CANopen, while dual absolute encoders read both the motor side and the output shaft to enable ultra-precise absolute positioning.
With an 18 mm hollow shaft through the center, an overall length of only 64.2mm, and all core components enclosed in a high-quality industrial housing, eRob80I delivers a compact industrial form without reducing the system architecture.
- Outer diameter
- Ø80 mm
- Hollow bore
- Ø18 mm
- Overall length
- 64.2 mm
Application and Integration
Ultra compact, plug-and-play integration.
Designed for confined spaces, eRob80I delivers precise, powerful, and reliable rotary motion in an all-in-one actuator solution. It offers flexibility for use in surgical robotics, humanoid robots, bioprocessing equipment, bionic robots, collaborative robots, logistics and warehouse robots, autonomous retail robots, and art installations.
General Parameters
| Item | Value |
|---|---|
| Nominal Supply Voltage | 48 VDC |
| Gearing | Zero Backlash Gearing |
| Repeatability / Absolute Positioning Accuracy | ±7 / ±15 arcsec |
| Output Encoder Resolution | 19 bit |
| Motor Rated Speed | 3000 RPM |
| Output Bearing | High-stiffness cross-roller bearing |
| Weight | 1.03kg |
Torque Parameters
| Parameter | eRob80I-50 | eRob80I-80 | eRob80I-100 | eRob80I-120 |
|---|---|---|---|---|
| Gear Ratio | 50 | 80 | 100 | 120 |
| Rated Torque L10 | 21Nm | 29Nm | 31Nm | 31Nm |
| Limit for Average Torque | 34Nm | 35Nm | 51Nm | 51Nm |
| Limit for Repeated Peak Torque | 44Nm | 56Nm | 70Nm | 70Nm |
| Limit for Momentary Peak Torque | 91Nm | 113Nm | 143Nm | 112Nm |
Preconfigured before delivery according to the confirmed model number, drawing revision, quotation, and order documents.
Customer value
Why choose eRob.
Product-level quality and reliability
Precision gearing
Built for demanding application environments
Easier controller integration
High torque density in compact housing
Stable holding without power
Consistent actuator performance in one matched system
Faster selection and delivery
Customer Value
From selection to system start‑up.
eRob80I brings rotary motion, absolute positioning, fieldbus communication, and confirmed order data into one industrial actuator, helping customer teams move from model selection to controller connection with fewer open technical assumptions.
Commissioning readiness
The confirmed setup is prepared before delivery according to the model number, drawing revision, quotation, and order documents.
Control-system connection
EtherCAT, CANopen, Modbus, I/O, RS485, analog input, external encoder, and STO interfaces support connection to the customer’s controller architecture.
Performance in constrained designs
Dual absolute encoders and a motor-side friction brake support precise, powerful, and reliable rotary motion where available space is limited.
Faster selection and delivery
The complete model number connects gear ratio, interface choice, output sensing, and configuration suffix to reference drawings and quotation documents for clearer procurement alignment.
Internal Composition
Integrated actuator structure.
Absolute Encoder for Motor
Multiturn AbsoluteEncoder for Output Shaft Servo Motor High Precision
Strain Wave Gear Servo Driver
Temperature Sensor Friction Brakes Virtual Torque Sensor
on Output Shaft
Benefits
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
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.
Motion Control Scheme for Exoskeleton Robot
Application in Humanoid Robots
Application in Medical Devices Gastrointestinal Endoscopic
