Electric servo-actuator HATF series

rotaryservo-motorwith integrated displacement encoder

Introduction
The HATF harmonic servo rotary actuators integrate a face-contact flange to enable mounting when end-face installation is not possible. They accept harmonic drives (frames 11–58) and provide rated torque from 4 N·m to 1200 N·m. Multi-turn absolute encoders with Tamagawa protocol are available (single-turn 17-bit / multi-turn 16-bit or single-turn 23-bit / multi-turn 16-bit); dual-encoder configurations optional.

Key benefits

• Integrated flange evenly distributes axial and radial loads across the face, improving load support and resistance to vibration and impact.
• Face-contact mounting reduces shaft alignment requirements and speeds up assembly.
• Flange functions as a positioning reference, reducing alignment and calibration effort during assembly.
• Modular design enables individual module removal by loosening bolts, simplifying maintenance and minimizing downtime.

Technical highlights

• Supported harmonic drive frames: 11, 14, 17, 20, 25, 32, 40, 50, 58.
• Rated torque: 4 N·m — 1200 N·m; peak torque varies by configuration.
• Example reduction ratios: 51, 81, 101, 121, 161 (varies by model and configuration).
• Rated and max speeds, currents, torque constants and accuracies vary by model (see datasheet for full tables).
• Hollow shaft diameters (examples): ø9 mm — ø50 mm depending on model.
• Mass range (without brake): ~1.17 kg — ~32 kg; with brake where applicable slightly higher.

Models & ordering
Series: HATF11, HATF14, HATF17, HATF20, HATF25, HATF32, HATF40, HATF50, HATF58. Specify frame size, reduction ratio, encoder option and brake option when ordering. For precise electrical/mechanical values consult the technical datasheet or contact sales.

Notes
Parameters shown are indicative (example sheet AC‑220V). Final values depend on model, reduction ratio and configuration — contact sales/engineering for application-specific selection.