Description
Product Description
The Siemens 1FT7136-5SC7X-1XXX is a premium SIMOTICS S-1FT7 permanent magnet synchronous servo motor engineered for high-performance industrial motion control applications requiring maximum torque, 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, high overload capability, and energy-efficient operation for heavy CNC machine tools, rotary tables, industrial robotics, metal forming equipment, steel processing machinery, and automated manufacturing systems.
Operating at a rated speed of 2,000 RPM, the 1FT7136-5SC7X-1XXX delivers an optimum output power of 39.8 kW, 190 Nm rated torque (100 K), and 235 Nm stall torque (100 K). The motor is capable of producing up to 510 Nm maximum torque while supporting a maximum mechanical speed of 3,600 RPM, making it ideal for applications requiring continuous high torque, rapid acceleration, and precise servo control. Forced ventilation ensures efficient cooling and stable thermal performance during demanding industrial operation.
The 1FT7136-5SC7X-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. The exact motor 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
- Forced ventilation cooling
- Optimum output power: 39.8 kW
- Rated speed: 2,000 RPM
- Rated torque: 190 Nm
- Stall torque (100 K): 235 Nm
- Maximum torque: 510 Nm
- Maximum mechanical speed: 3,600 RPM
- High efficiency (95%)
- 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 monitoring
- IP64 / IP65 / IP67 protection (variant dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Part Number | 1FT7136-5SC7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Forced Ventilation |
| Optimum Output Power | 39.8 kW |
| Rated Speed | 2,000 RPM |
| Rated Torque (100 K) | 190 Nm |
| Stall Torque (100 K) | 235 Nm |
| Stall Torque (60 K) | 195 Nm |
| Maximum Torque | 510 Nm |
| Rated Current | 81 A |
| Stall Current (100 K) | 98 A |
| Stall Current (60 K) | 79 A |
| Maximum Current | 245 A |
| Maximum Mechanical Speed | 3,600 RPM |
| Maximum Converter Speed | 3,500 RPM |
| Rated Converter Current | 132 A |
| Maximum Converter Current | 210 A |
| Maximum Converter Torque | 455 Nm |
| Number of Poles | 8 |
| Efficiency | 95% |
| Torque Constant | 2.42 Nm/A |
| Voltage Constant | 165 V/1000 RPM |
| Winding Resistance | 0.04 Ω |
| Rotating Field Inductance | 1.5 mH |
| Electrical Time Constant | 36 ms |
| Mechanical Time Constant | 1.6 ms |
| Thermal Time Constant | 25 min |
| Rotor Moment of Inertia | 801 × 10⁻⁴ kg·m² |
| Motor Weight | Approx. 125 kg (configuration dependent) |
| 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




