Description
Product Description
The Siemens 1FT7134-5AC7X-1XXX belongs to the SIMOTICS S-1FT7 family of permanent magnet synchronous servo motors, engineered for high-performance industrial motion control applications requiring exceptional torque, high dynamic response, and precise positioning. Designed for seamless integration with Siemens SINAMICS S120 servo drive systems, this motor family is ideal for CNC machining centers, industrial robotics, metalworking machinery, packaging systems, material handling equipment, printing presses, and automated manufacturing lines. The compact design, high power density, and robust construction ensure reliable operation in demanding industrial environments.
Operating at a rated speed of 2,000 RPM, the 1FT7134-5AC7X-1XXX series delivers 13.8 kW rated output power, 66 Nm rated torque, and 118 Nm stall torque (100 K). The motor provides up to 390 Nm maximum torque and supports maximum mechanical speeds of 3,600 RPM, delivering excellent overload capability, rapid acceleration, and precise speed regulation. The permanent magnet synchronous design provides 95% efficiency, low rotor inertia, and outstanding servo performance for continuous-duty applications.
The 1FT7134-5AC7X-1XXX family includes numerous MLFB variants with different encoder technologies, shaft configurations (plain shaft or keyed shaft), optional holding brakes, connector orientations, vibration grades, and protection classes. All models feature natural cooling, IM B5 flange mounting, DRIVE-CLiQ communication, an integrated Pt1000 temperature sensor, and rotatable power connectors. The exact electrical and mechanical 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
- Rated output power: 13.8 kW
- Rated speed: 2,000 RPM
- Rated torque: 66 Nm
- Stall torque (100 K): 118 Nm
- Maximum torque: 390 Nm
- Maximum mechanical speed: 3,600 RPM
- 95% efficiency
- Natural cooling
- DRIVE-CLiQ encoder interface
- Available with incremental, single-turn absolute, and multiturn absolute encoders
- Plain shaft or keyed shaft options
- Optional permanent-magnet holding brake
- IM B5 flange mounting
- Rotatable power connector
- Integrated Pt1000 temperature sensor
- IP64 / IP65 protection (variant dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Series | 1FT7134-5AC7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Natural Cooling |
| Rated Power | 13.8 kW |
| Rated Speed | 2,000 RPM |
| Rated Torque | 66 Nm |
| Stall Torque (100 K) | 118 Nm |
| Maximum Torque | 390 Nm |
| Rated Current | 21 A |
| Stall Current (100 K) | 36 A |
| Maximum Current | 146 A |
| Maximum Mechanical Speed | 3,600 RPM |
| Maximum Inverter Speed | 2,650 RPM |
| Number of Poles | 8 |
| Efficiency | 95% |
| Torque Constant | 3.27 Nm/A |
| Voltage Constant | 215 V/1000 RPM |
| Winding Resistance | 0.10 Ω |
| Rotor Inertia | 604–657 kg·cm² (variant dependent) |
| Encoder Interface | DRIVE-CLiQ |
| Encoder Options | Incremental, Single-turn Absolute, Multiturn Absolute |
| Shaft Options | Plain Shaft or Keyed Shaft |
| Holding Brake | Optional |
| Mounting Arrangement | IM B5 Flange |
| Protection Class | IP64 / IP65 (variant dependent) |
| Temperature Monitoring | Integrated Pt1000 Sensor |
| Drive Compatibility | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
Applications
- CNC Machining Centers
- CNC Milling Machines
- CNC Turning Centers
- Industrial Robotics
- Metal Forming Equipment
- Material Handling Systems
- Packaging Machinery
- Printing & Converting Equipment
- Heavy Industrial Automation
- Automated Production Lines
- Precision Motion Control Systems




