Rainbow Robotics RB3 — Specs & Review
Specifications
| Brand | Rainbow Robotics |
|---|---|
| Model | RB3 |
| Year | 2020 |
| Category | Industrial Lite |
| Autonomy | semi-autonomous |
| Environment | indoor |
| Payload | 3 kg |
| Reach | 700 mm |
| Connectivity | EtherCAT, Modbus TCP, Ethernet |
| Country of origin | KR |
Key features
- 6-axis compact collaborative robot
- 3kg payload, 700mm reach
- Integrated joint torque sensing
- ISO/TS 15066 safety compliance
- KAIST research heritage
- Samsung strategic investor
- Floor, ceiling, wall mounting
What is it?
The Rainbow Robotics RB3 is the smallest model in the RB collaborative series, developed from KAIST research into compliant robot joint design. The RB3 incorporates integrated joint torque sensing, enabling compliant control and precise force feedback for delicate manipulation tasks.
Who is it for?
Research institutions, electronics manufacturers, and precision assembly operations needing a compact, torque-sensing collaborative robot. Integrators building small-footprint workcells for PCB handling, laboratory automation, and inspection.
Key specs
- Axes: 6
- Payload: 3 kg
- Reach: 700 mm
- Repeatability: ±0.05 mm
- Safety: ISO/TS 15066 compliant
- Joint torque sensing: Integrated
- Mounting: Floor, ceiling, wall
How it compares
The RB3 at 700mm reach exceeds the Hanwha HCR-3 (630mm) and Universal Robots UR3e (500mm) for the same 3kg payload. Rainbow's KAIST heritage differentiates the platform on research credibility and joint torque sensing sophistication.
FAQ
What differentiates Rainbow Robotics from other cobot brands?
Rainbow Robotics was founded by KAIST researchers and incorporates joint-level torque sensing for compliant control and precise force feedback — a design approach more common in research cobots than commercial platforms.
What is the reach of the RB3?
The RB3 has a 700mm reach — longer than the UR3e (500mm) and Hanwha HCR-3 (630mm) for the same 3kg payload class.
Who has invested in Rainbow Robotics?
Samsung Electronics holds a strategic stake in Rainbow Robotics, reflecting Samsung's broader push into industrial and service robotics.