Description
Product Description
The Siemens 1FT7108-5WB7X-1XXX is a high-performance SIMOTICS S-1FT7 permanent magnet synchronous servo motor engineered for demanding industrial automation and precision motion control applications. Featuring an advanced water-cooled design, this servo motor delivers exceptional continuous torque, superior thermal stability, and outstanding positioning accuracy. 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, heavy material handling equipment, metal processing machinery, and automated production systems.
Operating at a rated speed of 1,500 RPM, the 1FT7108-5WB7X-1XXX delivers an optimum output power of 19.6 kW, 125 Nm rated torque (100 K), and 125 Nm stall torque (100 K). The motor can generate up to 330 Nm maximum torque while supporting a maximum mechanical speed of 6,000 RPM, ensuring rapid acceleration, excellent overload capability, and reliable continuous-duty operation. The efficient water-cooling system maintains stable operating temperatures under heavy loads and extended operating cycles.
The 1FT7108-5WB7X-1XXX family is available in multiple MLFB configurations with various encoder systems, shaft versions (plain shaft or fitted key), optional permanent-magnet holding brakes, connector orientations, vibration grades, and protection classes. All variants 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: 19.6 kW
- Rated speed: 1,500 RPM
- Rated torque: 125 Nm
- Stall torque (100 K): 125 Nm
- Maximum torque: 330 Nm
- Maximum mechanical speed: 6,000 RPM
- Efficiency: 94%
- DRIVE-CLiQ digital encoder interface
- High torque density with excellent dynamic performance
- 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 monitoring
- IP64 / IP65 / IP67 protection (configuration dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Part Number | 1FT7108-5WB7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Water Cooled |
| Optimum Output Power | 19.6 kW |
| Rated Speed | 1,500 RPM |
| Rated Torque (100 K) | 125 Nm |
| Rated Current | 40.32 A |
| Stall Torque (60 K) | 100 Nm |
| Stall Torque (100 K) | 125 Nm |
| Stall Current (60 K) | 31.60 A |
| Stall Current (100 K) | 39.00 A |
| Maximum Torque | 330 Nm |
| Maximum Current | 120.50 A |
| Maximum Mechanical Speed | 6,000 RPM |
| Maximum Converter Speed | 2,900 RPM |
| Rated Converter Current | 45 A |
| Maximum Converter Current | 85 A |
| Maximum Converter Torque | 249.5 Nm |
| Number of Poles | 10 |
| Efficiency | 94% |
| Torque Constant | 3.16 Nm/A |
| Voltage Constant | 199.5 V/1000 RPM |
| Winding Resistance | 0.11 Ω |
| Rotating Field Inductance | 2.7 mH |
| Electrical Time Constant | 24 ms |
| Mechanical Time Constant | 0.9 ms |
| Thermal Time Constant | Approx. 2 min |
| Rotor Moment of Inertia | 265 × 10⁻⁴ kg·m² (configuration dependent) |
| Motor Weight | Approx. 68.6 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 Machinery
- Heavy Material Handling Systems
- Packaging Machinery
- Printing Equipment
- Semiconductor Manufacturing
- Automated Production Lines
- High-Precision Motion Control