Description
Product Description
The Siemens 1FT7134-5SF7X-1XXX is a premium SIMOTICS S-1FT7 permanent magnet synchronous servo motor engineered for high-performance industrial motion control applications requiring maximum torque, high-speed precision, and continuous-duty reliability. Designed for seamless integration with Siemens SINAMICS S120 servo drive systems through the DRIVE-CLiQ interface, this forced-ventilated servo motor delivers exceptional dynamic response, superior overload capability, and high energy efficiency for CNC machine tools, heavy-duty robotics, rotary tables, metal forming machinery, steel processing equipment, and automated production systems.
Operating at a rated speed of 3,000 RPM, the 1FT7134-5SF7X-1XXX provides an optimum output power of 45.5 kW, 145 Nm rated torque (100 K), and 190 Nm stall torque (100 K). The motor delivers up to 410 Nm maximum torque while supporting a maximum mechanical speed of 3,600 RPM, making it ideal for demanding applications requiring high torque, rapid acceleration, and accurate positioning. Forced ventilation ensures reliable cooling and stable thermal performance during continuous heavy-duty operation.
The 1FT7134-5SF7X-1XXX product family is available in multiple MLFB configurations featuring various encoder systems, shaft options (plain shaft or fitted key), optional permanent-magnet holding brakes, connector orientations, vibration grades, and protection classes. All variants include IM B5 flange mounting, integrated Pt1000 temperature monitoring, and DRIVE-CLiQ communication for fast commissioning and advanced diagnostics.
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: 45.5 kW
- Rated speed: 3,000 RPM
- Rated torque: 145 Nm
- Stall torque (100 K): 190 Nm
- Maximum torque: 410 Nm
- Maximum mechanical speed: 3,600 RPM
- High efficiency: 96%
- DRIVE-CLiQ digital encoder interface
- High torque density and outstanding 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 sensor
- IP64 / IP65 / IP67 protection (variant dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Part Number | 1FT7134-5SF7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Forced Ventilation |
| Optimum Output Power | 45.5 kW |
| Rated Speed | 3,000 RPM |
| Rated Torque (100 K) | 145 Nm |
| Rated Current | 91 A |
| Stall Torque (60 K) | 160 Nm |
| Stall Torque (100 K) | 190 Nm |
| Stall Current (60 K) | 97 A |
| Stall Current (100 K) | 115 A |
| Maximum Torque | 410 Nm |
| Maximum Current | 295 A |
| Maximum Mechanical Speed | 3,600 RPM |
| Maximum Converter Speed | 3,600 RPM |
| Rated Converter Current | 132 A |
| Maximum Converter Current | 210 A |
| Maximum Converter Torque | 315 Nm |
| Number of Poles | 8 |
| Efficiency | 96% |
| Torque Constant | 1.61 Nm/A |
| Voltage Constant | 110 V/1000 RPM |
| Winding Resistance | 0.03 Ω |
| Rotating Field Inductance | 0.8 mH |
| Electrical Time Constant | 32 ms |
| Mechanical Time Constant | 1.7 ms |
| Thermal Time Constant | 22 min |
| Rotor Moment of Inertia | 604 × 10⁻⁴ kg·m² (657 × 10⁻⁴ kg·m² with holding brake) |
| Motor Weight | Approx. 97 kg (108 kg with holding brake) |
| 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, connector orientation, and complete Siemens MLFB ordering code.
Applications
- Heavy CNC Machine Tools
- Industrial Robotics
- Rotary Tables
- Metal Forming Machinery
- Steel Processing Equipment
- Heavy Material Handling Systems
- Press Automation
- Packaging Machinery
- Automated Production Lines
- High-Torque Precision Motion Control




