KUKA KR6 R1840 arc HW-2
Robot details
The KUKA KR 6 R1840 arc HW‑2 is a 6‑axis industrial robot specifically engineered for arc welding applications, combining extended reach, high path accuracy, and welding‑optimized mechanical design to ensure consistent and high‑quality weld results.
With a payload of 6 kg and an extended reach of 1,840 mm, this robot is ideally suited for MIG, MAG, and TIG welding on medium to large components. The ARC HW‑2 version is designed to operate reliably in harsh welding environments, featuring reinforced wrist mechanics, protected cable routing, and stable motion behavior for continuous welding trajectories.
The robot is powered by the KUKA KR C5 controller, KUKA’s latest‑generation control platform, delivering high‑performance motion control, advanced welding integration, and modern digital connectivity for automated welding cells.
Arc Welding Motion Concept and Performance
The KR 6 R1840 arc HW‑2 is optimized for smooth continuous path motion, which is essential for arc welding quality, penetration consistency, and process stability.
Key motion characteristics include:
- High path accuracy for uniform weld seams
- Smooth TCP motion for stable arc behavior
- Optimized wrist kinematics for precise torch orientation
- Reduced vibration during long welding paths
- Reliable performance in continuous welding duty cycles
The long reach allows large welding fixtures to be processed efficiently without frequent repositioning or additional external axes.
Controller & Software – KUKA KR C5
The KUKA KR C5 controller is KUKA’s most advanced industrial robot controller, designed to support high‑performance robotic arc welding applications.
Controller Highlights:
- High‑performance motion and path control
- Advanced integration with welding power sources
- Compact, modular controller architecture
- Improved connectivity and Industry 4.0 readiness
- Full support for external axes and welding positioners
The KR C5 ensures precise synchronization between robot motion and welding process parameters, resulting in consistent weld quality and high system reliability.
Robot applications
| Parameter | Specification |
|---|---|
| Robot type | Industrial articulated robot (Arc welding) |
| Axes | 6 |
| Payload | 6 kg |
| Maximum reach | 1,840 mm |
| Application class | Robotic arc welding |
| Mounting options | Floor, wall, ceiling |
| Design | Slim, rigid, welding‑optimized |
| Parameter | Specification |
|---|---|
| Controller | KUKA KR C5 |
| Control software | KUKA System Software (KSS) |
| Welding integration | Supported |
| External axes support | Yes (positioners, turntables) |
| Fieldbus integration | Supported |
| Safety functions | Integrated industrial safety |
Typical Applications
- Robotic arc welding (MIG / MAG / TIG)
- Automotive components and subassemblies
- Metal fabrication and welded structures
- Frames and tubular constructions
- Industrial welding cells
- Automated welding with positioners
