Description
Product Description
The Siemens 1FT7105-5WB7X-1XXX is a premium SIMOTICS S-1FT7 permanent magnet synchronous servo motor engineered for high-torque, continuous-duty industrial motion control applications. Featuring an advanced water-cooled design, this servo motor delivers exceptional thermal stability, high power density, and precise positioning performance. Designed for seamless integration with Siemens SINAMICS S120 servo drive systems via the DRIVE-CLiQ interface, it is ideal for CNC machine tools, industrial robotics, rotary tables, packaging equipment, metal processing machinery, printing systems, and automated production lines.
Operating at a rated speed of 1,500 RPM, the 1FT7105-5WB7X-1XXX delivers an optimum output power of 14.1 kW, 90 Nm rated torque (100 K), and 90 Nm stall torque (100 K). The motor provides up to 230 Nm maximum torque while supporting a maximum mechanical speed of 6,000 RPM, ensuring excellent acceleration, high overload capability, and reliable continuous operation in demanding industrial environments.
The 1FT7105-5WB7X-1XXX family is available in numerous MLFB variants with different encoder systems, shaft configurations (plain shaft or fitted key), optional permanent-magnet holding brakes, connector orientations, and protection classes. All models feature IM B5 flange mounting, integrated Pt1000 temperature monitoring, and DRIVE-CLiQ digital communication for simplified commissioning and advanced diagnostics.
Key Features
- Genuine Siemens SIMOTICS S-1FT7 synchronous servo motor
- Permanent magnet synchronous motor technology
- Water-cooled design for continuous heavy-duty operation
- Optimized for Siemens SINAMICS S120 servo drive systems
- Optimum output power: 14.1 kW
- Rated speed: 1,500 RPM
- Rated torque: 90 Nm
- Stall torque (100 K): 90 Nm
- Maximum torque: 230 Nm
- Maximum mechanical speed: 6,000 RPM
- Efficiency: 94%
- DRIVE-CLiQ digital encoder interface
- High torque density and excellent positioning accuracy
- Incremental, single-turn absolute, and multiturn 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 | 1FT7105-5WB7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Water Cooled |
| Optimum Output Power | 14.1 kW |
| Rated Speed | 1,500 RPM |
| Rated Torque (100 K) | 90 Nm |
| Rated Current | 29.45 A |
| Stall Torque (60 K) | 72 Nm |
| Stall Torque (100 K) | 90 Nm |
| Stall Current (60 K) | 23.1 A |
| Stall Current (100 K) | 28.2 A |
| Maximum Torque | 230 Nm |
| Maximum Current | 87 A |
| Maximum Mechanical Speed | 6,000 RPM |
| Maximum Converter Speed | 2,900 RPM |
| Rated Converter Current | 30 A |
| Maximum Converter Current | 90 A |
| Number of Poles | 10 |
| Efficiency | 94% |
| Torque Constant | 3.12 Nm/A |
| Voltage Constant | 197 V/1000 RPM |
| Winding Resistance | 0.16 Ω |
| Rotating Field Inductance | 3.7 mH |
| Electrical Time Constant | 24 ms |
| Mechanical Time Constant | 1.3 ms |
| Thermal Time Constant | Approx. 2 min |
| Rotor Moment of Inertia | 191–270 × 10⁻⁴ kg·m² (configuration dependent) |
| Motor Weight | Approx. 55 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, connector orientation, and complete Siemens MLFB ordering code.
Applications
- CNC Machine Tools
- Industrial Robotics
- Rotary Tables
- Metal Processing Equipment
- Packaging Machinery
- Printing Machinery
- Material Handling Systems
- Semiconductor Manufacturing
- Automated Production Lines
- High-Precision Motion Control





