EQI Heidenhain Encoder

The HEIDENHAIN ECI/EBI/EQI 1300 Series is a range of high-performance absolute rotary encoders without an integral bearing, designed for demanding servo drive and motion control applications. Featuring a robust inductive scanning principle and a blind hollow shaft design, these encoders deliver reliable, high-precision position feedback even in harsh industrial environments. With excellent resistance to vibration, contamination, and high operating temperatures, the ECI/EBI/EQI 1300 series ensures long-term accuracy, dependable performance, and seamless integration into modern automation systems.

Key Features

• Absolute rotary encoder without integral bearing
• Robust inductive scanning technology for reliable operation
• Blind hollow shaft for direct and rigid shaft coupling
• Positioning accuracy up to ±65 arcseconds
• Resolution of 524,288 positions per revolution
• Multiturn capability supporting up to 65,536 revolutions
• High axial tolerance of ±0.5 mm for easier installation
• Maximum operating temperature of 115°C
• Compatible with EnDat and DRIVE-CLiQ interfaces
• Supports external temperature sensor evaluation
• Resistant to contamination and high vibration environments
• Functional safety options available for applications up to SIL 3
• Mounting-compatible with the ECN/EQN 1300 series and resolver size 21
• Compact housing diameter of approximately 56 mm