Description
Product Description
The Siemens 1FT7134-5SC7X-1XXX is a high-performance SIMOTICS S-1FT7 permanent magnet synchronous servo motor designed for demanding industrial motion control applications requiring exceptional torque, precision, and continuous-duty reliability. Engineered for seamless integration with Siemens SINAMICS S120 servo drive systems via the DRIVE-CLiQ interface, this forced-ventilated servo motor delivers outstanding dynamic response, high overload capability, and superior energy efficiency for CNC machine tools, rotary tables, heavy robotics, metal forming equipment, printing machinery, and automated production systems.
Operating at a rated speed of 2,000 RPM, the 1FT7134-5SC7X-1XXX delivers an optimum output power of 33.5 kW, 160 Nm rated torque (100 K), and 190 Nm stall torque (100 K). The motor can produce up to 410 Nm maximum torque while supporting a maximum mechanical speed of 3,600 RPM, making it ideal for high-torque, precision servo applications under continuous heavy-duty operating conditions. Forced ventilation ensures efficient heat dissipation and stable thermal performance.
The 1FT7134-5SC7X-1XXX product family includes multiple MLFB variants with different encoder technologies, shaft versions (plain shaft or fitted key), optional permanent-magnet holding brakes, connector orientations, vibration grades, and IP protection classes. All variants feature IM B5 flange mounting, integrated Pt1000 temperature monitoring, and DRIVE-CLiQ communication. The exact motor configuration depends on the complete Siemens MLFB ordering code.
Key Features
- Genuine Siemens SIMOTICS S-1FT7 synchronous servo motor
- Permanent magnet synchronous motor technology
- Optimized for Siemens SINAMICS S120 servo drive systems
- Forced ventilation cooling
- Optimum output power: 33.5 kW
- Rated speed: 2,000 RPM
- Rated torque: 160 Nm
- Stall torque (100 K): 190 Nm
- Maximum torque: 410 Nm
- Maximum mechanical speed: 3,600 RPM
- High efficiency (95%)
- DRIVE-CLiQ digital encoder interface
- High torque density and excellent overload capability
- Incremental, single-turn absolute, and multiturn absolute encoder options
- Plain shaft or fitted key shaft versions
- Optional permanent-magnet holding brake
- IM B5 flange mounting
- Integrated Pt1000 temperature monitoring
- IP64 / IP65 / IP67 protection (variant dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Part Number | 1FT7134-5SC7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Forced Ventilation |
| Optimum Output Power | 33.5 kW |
| Rated Speed | 2,000 RPM |
| Rated Torque (100 K) | 160 Nm |
| Stall Torque (100 K) | 190 Nm |
| Stall Torque (60 K) | 160 Nm |
| Maximum Torque | 410 Nm |
| Rated Current | 73 A |
| Stall Current (100 K) | 85 A |
| Stall Current (60 K) | 70 A |
| Maximum Current | 210 A |
| Maximum Mechanical Speed | 3,600 RPM |
| Maximum Converter Speed | 3,600 RPM |
| Rated Converter Current | 85 A |
| Maximum Converter Current | 141 A |
| Maximum Converter Torque | 300 Nm |
| Number of Poles | 8 |
| Efficiency | 95% |
| Torque Constant | 2.25 Nm/A |
| Voltage Constant | 154 V/1000 RPM |
| Winding Resistance | 0.05 Ω |
| Rotating Field Inductance | 1.6 mH |
| Electrical Time Constant | 32 ms |
| Mechanical Time Constant | 1.8 ms |
| Thermal Time Constant | 22 min |
| Rotor Moment of Inertia | 604 × 10⁻⁴ kg·m² |
| Motor Weight | Approximately 97 kg |
| Encoder Interface | DRIVE-CLiQ |
| Encoder Options | Incremental, Single-turn Absolute, Multiturn Absolute |
| Shaft Options | Plain Shaft or Fitted Key |
| Holding Brake | Optional Permanent-Magnet Brake |
| Mounting Arrangement | IM B5 Flange |
| Temperature Monitoring | Integrated Pt1000 Temperature Sensor |
| Protection Class | IP64 / IP65 / IP67 (variant dependent) |
| Compatible Drives | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
Technical specifications may vary depending on the selected encoder, shaft configuration, holding brake option, connector orientation, and complete Siemens MLFB ordering code.
Applications
- Heavy CNC Machine Tools
- Industrial Robotics
- Metal Forming Machinery
- Rotary Tables
- Heavy Material Handling Systems
- Steel Processing Equipment
- Printing Machinery
- Packaging Machinery
- Automated Production Lines
- High-Torque Precision Motion Control




