Overview
Mitsubishi HF354S Servo Motor – 3.5kW Precision Drive
The Mitsubishi HF354S is a brushless AC servo motor engineered for high-performance industrial motion control. With a rated output of 3.5kW and continuous speed of 3000RPM, this MELSERVO HF-series motor delivers 11.1Nm nominal torque and 22.5Nm stall torque, making it suitable for precision positioning, indexing, and dynamic load applications in CNC machines and multi-axis automation systems.
Key Features
- 3.5kW rated output with 3000RPM nominal speed
- 18-bit (260,000 PPR equivalent) absolute position feedback encoder
- 11.1Nm nominal / 22.5Nm stall torque
- IP67 environmental protection rating
- Straight shaft with 114.3×114.3mm or 176×176mm flange mount options
- Operates in 0–40°C ambient temperature range
Technical Specifications
- Rated Output: 3500W (3.5kW)
- Rated Speed: 3000 RPM
- Nominal Torque: 11.1 Nm
- Stall Torque: 22.5 Nm
- Rated Current: 6.9A (400Vac class) / 12A (200Vac class)
- Feedback Encoder: 18-bit absolute (260,000 pulses/rev)
- Protection Rating: IP67
- Mounting Flange: 114.3×114.3mm or 176×176mm
- Operating Temperature: 0 to +40°C
- Motor Type: Brushless AC servo motor
Typical Applications
- CNC machine tool spindle drives and axis control
- Industrial robot joint actuation
- Precision packaging and labeling equipment
- Multi-axis motion control systems
- Automated assembly and material handling
- High-speed printing and converting machinery
Compatibility & Replacements
Compatible With
- Mitsubishi MELSERVO HF-MDS-D / HF-MDS-D2 servo drive units
- Mitsubishi CNC control systems (MELDAS family)
- Standard EtherCAT and Pulse & Direction control protocols
- Industrial PLC/PAC systems via servo interface modules
Replaces / Drop-In Replacement For
- HF-H354S-A48 (straight shaft variant)
- HF354BS-A48 (brake-equipped variant)
- Legacy HF200-series 3.5kW motors requiring same footprint and flange
Works With
- Mitsubishi MELSERVO drive firmware and tuning software
- Pulse & Direction encoder interface
- EtherCAT fieldbus integration (via compatible gateway)
- Standard 3-phase AC 200V or 400V power supplies
