Description
Product Description
The Siemens 1FT7086-5SF7X-1XXX is a premium SIMOTICS S-1FT7 permanent magnet synchronous servo motor designed for high-performance industrial motion control applications requiring outstanding precision, high torque density, and continuous-duty operation. Engineered for seamless integration with Siemens SINAMICS S120 servo drive systems through the DRIVE-CLiQ interface, this forced-ventilated servo motor delivers exceptional dynamic response, reliable overload capability, and energy-efficient performance for CNC machine tools, industrial robots, rotary tables, packaging equipment, printing machinery, and automated production systems.
Operating at a rated speed of 3,000 RPM, the 1FT7086-5SF7X-1XXX provides an optimum output power of 9.10 kW, 29 Nm rated torque (100 K), and 36 Nm stall torque (100 K). The motor delivers up to 120 Nm maximum torque while supporting a maximum mechanical speed of 8,000 RPM, ensuring excellent acceleration, positioning accuracy, and reliable continuous operation in demanding industrial environments.
The 1FT7086-5SF7X-1XXX product family is available in numerous MLFB variants with different encoder systems, shaft configurations (plain shaft or fitted key), optional holding brakes, connector orientations, vibration grades, and protection classes. All variants feature IM B5 recessed flange mounting, integrated temperature monitoring, and DRIVE-CLiQ communication for simplified commissioning and advanced diagnostics. Final specifications depend on the complete Siemens MLFB ordering code.
Key Features
- Genuine Siemens SIMOTICS S-1FT7 synchronous servo motor
- Permanent magnet synchronous motor technology
- Designed for Siemens SINAMICS S120 servo drive systems
- Forced ventilation cooling
- Optimum output power: 9.10 kW
- Rated speed: 3,000 RPM
- Rated torque: 29 Nm
- Stall torque (100 K): 36 Nm
- Maximum torque: 120 Nm
- Maximum mechanical speed: 8,000 RPM
- DRIVE-CLiQ digital encoder interface
- High torque density and excellent dynamic response
- Incremental, single-turn absolute, and multiturn absolute encoder options
- Plain shaft or fitted key shaft versions
- Optional permanent-magnet holding brake
- IM B5 recessed flange mounting
- Integrated temperature monitoring
- IP64 / IP65 protection (variant dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Part Number | 1FT7086-5SF7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Forced Ventilation |
| Optimum Output Power | 9.10 kW |
| Rated Speed | 3,000 RPM |
| Optimum Speed | 3,000 RPM |
| Rated Torque (100 K) | 29 Nm |
| Stall Torque (100 K) | 36 Nm |
| Stall Torque (60 K) | 30 Nm |
| Maximum Torque | 120 Nm |
| Rated Current | 24 A |
| Stall Current (100 K) | 29 A |
| Stall Current (60 K) | 24 A |
| Maximum Current | 110 A |
| Maximum Mechanical Speed | 8,000 RPM |
| Maximum Converter Speed | 7,200 RPM |
| Number of Poles | 10 |
| Torque Constant | 1.25 Nm/A |
| Voltage Constant | 80 V/1000 RPM |
| Winding Resistance | 0.11 Ω |
| Rotating Field Inductance | 2.0 mH |
| Electrical Time Constant | 18 ms |
| Mechanical Time Constant | 1.4 ms |
| Thermal Time Constant | 40 min |
| Rotor Moment of Inertia | 64 × 10⁻⁴ kg·m² |
| Rotor Inertia (with Brake) | 79 × 10⁻⁴ kg·m² |
| Motor Weight | 36 kg |
| Motor Weight (with Brake) | 32 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 Recessed Flange |
| Temperature Monitoring | Integrated Temperature Sensor |
| Protection Class | IP64 / IP65 (variant dependent) |
| Compatible Drives | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
Technical specifications may vary depending on the selected encoder, shaft configuration, holding brake, connector orientation, vibration grade, and complete Siemens MLFB ordering code.
Applications
- CNC Machine Tools
- Industrial Robotics
- Rotary Tables
- Packaging Machinery
- Printing Equipment
- Material Handling Systems
- Semiconductor Manufacturing
- Automated Production Lines
- Textile Machinery
- High-Precision Motion Control




