KUKA KR420 R3100-2
Robot details
The KUKA KR 420 R3100‑2 is a 6‑axis ultra‑heavy‑payload industrial robot designed for extreme load handling, long reach, and maximum mechanical stability in the most demanding industrial automation environments.
With an impressive payload capacity of 420 kg and a reach of 3,100 mm, the KR 420 R3100‑2 is ideally suited for handling very large and heavy components, such as automotive body parts, castings, molds, frames, and large structural assemblies. Its reinforced mechanical design ensures excellent positioning accuracy, repeatability, and rigidity, even when operating close to maximum payload and reach.
The robot is powered by the KUKA KR C5 controller, KUKA’s latest‑generation control platform, delivering high‑performance motion control, advanced connectivity, and compact system architecture for modern, digitally integrated ultra‑heavy‑duty automation systems.
Motion Concept and Performance
The KUKA KR 420 R3100‑2 is optimized for controlled, stable, and repeatable motion under extreme payloads, prioritizing rigidity, safety, and process reliability over high acceleration.
Key motion characteristics include:
- Ultra‑high structural stiffness for very heavy payloads
- Stable point‑to‑point and continuous path motion
- High repeatability at maximum load
- Minimal vibration and mechanical deflection
- Reliable performance in continuous ultra‑heavy‑duty duty cycles
The 3,100 mm reach allows efficient handling of oversized components while maintaining safe and predictable motion behavior.
Controller & Software – KUKA KR C5
The KUKA KR C5 controller is KUKA’s most advanced industrial robot controller, designed for high‑performance, flexible, and digitally connected automation systems, including ultra‑heavy‑payload applications.
Controller Highlights:
- Compact and modular controller architecture
- High‑precision motion and path control
- Improved connectivity and Industry 4.0 readiness
- Support for external axes and complex automation cells
- Advanced diagnostics and integrated safety functions
The KR C5 ensures precise robot control, high system availability, and long‑term operational reliability, even in extreme load and large‑scale automation scenarios.
Robot applications
| Parameter | Specification |
|---|---|
| Robot type | Industrial articulated robot |
| Axes | 6 |
| Payload | 420 kg |
| Maximum reach | 3,100 mm |
| Application class | Ultra‑heavy‑duty industrial automation |
| Mounting options | Floor |
| Design | Reinforced, ultra‑high‑rigidity, industrial‑grade |
Accuracy & Motion Control
| Parameter | Specification |
|---|---|
| Motion control | High‑precision position control |
| Repeatability | High, suitable for ultra‑heavy payload tasks |
| Path accuracy | Optimized for industrial motion |
| Motion behavior | Stable, controlled, repeatable |
| Duty cycle | Continuous ultra‑heavy‑duty operation |
Motor Speed & Dynamic Performance
Motor dynamics are optimized for stability and safe handling of extreme loads rather than aggressive acceleration.
| Feature | Description |
|---|---|
| Axis motors | Ultra‑high‑torque industrial servo motors |
| Axis speed | Optimized for extreme‑load stability |
| Acceleration | Balanced for control and safety |
| Trajectory control | Stable point‑to‑point and continuous paths |
| Load handling | Optimized for very heavy tools and components |
| Dynamic behavior | Minimal deflection at full payload |
Controller & System
| Parameter | Specification |
|---|---|
| Controller | KUKA KR C5 |
| Control software | KUKA System Software (KSS) |
| External axes support | Yes |
| Fieldbus integration | Supported |
| Safety functions | Integrated industrial safety |
Typical Applications
- Ultra‑heavy material handling
- Automotive body and frame handling
- Foundry and forging operations
- Machine loading and unloading
- Handling of molds, dies, and castings
- Large‑scale industrial automation cells
Key Benefits
- Extremely high payload capacity (420 kg)
- Long reach for very large workspaces
- Stable and precise motion under extreme load
- Robust mechanical design for harsh environments
- Advanced KR C5 controller architecture
- Proven KUKA ultra‑heavy‑duty reliability
