The K6D80ri 6-axis force-torque sensor, featuring an ISO 9409-1-50-4-M6 robot flange, was developed specifically for demanding applications in robotics, medical technology, and industrial automation.

Thanks to the integrated EtherCAT P signal conditioner, power supply and digital data transmission are handled via a single 4-core connection cable. The cable connects via a strain-relieved plug beneath the mounting plate and can be easily replaced if necessary.

The K6D80ri multi-component sensor simultaneously measures forces and torques in all three spatial directions (Fx, Fy, Fz, Mx, My, Mz). A key feature is its wide torque measurement range combined with compact dimensions and a small outer diameter.

Typical application areas

• Collision detection and robot motion monitoring
• Teach-in procedures and force-guided robot programming
• Presence and error detection
• Force and torque-controlled systems
• Load measurements in medical technology, prosthetics, and orthopedics
• Gait analysis and biomechanical studies
• Sports medicine measurements
• Comfort and ergonomics measurements

Measurement principle and signal processing
The K6D80ri is based on a hexapod measurement structure, in which applied forces and torques are captured by six sensing elements. The six force and torque components are calculated using an individually determined 6×6 calibration matrix. This process assigns the superimposed measurement signals to the individual force and torque axes and reduces residual crosstalk to typically less than 4%. Signal conditioning and digital data transmission are handled by the integrated GSV-61i measuring amplifier with an EtherCAT-P interface. The K6D80ri (1 kN / 100 Nm version) is manufactured from a high-quality aluminum alloy.

Optional special versions

• IP68 protection rating: for nominal forces of 200 N and above
• Extended temperature range: −40 °C to +85 °C
• Vacuum version: for vacuum applications down to a residual pressure of 10⁻⁵ mbar
• Pressure-resistant version: up to 8 bar