Description
Product Description
The Siemens 1FT7108-5AC7X-1XXX is a member of the SIMOTICS S-1FT7 family of permanent magnet synchronous servo motors, designed for demanding industrial motion control applications requiring high torque, fast acceleration, and exceptional positioning accuracy. Optimized for operation with Siemens SINAMICS S120 servo drive systems, this motor family is widely used in CNC machining centers, industrial robotics, material handling systems, packaging machinery, printing equipment, woodworking machines, and automated manufacturing lines. The motors combine high power density, low rotor inertia, and outstanding reliability for continuous industrial operation.
The 1FT7108-5AC7X-1XXX series delivers 10.5 kW rated output power at 2,000 RPM, producing 50 Nm rated torque and 70 Nm stall torque (100 K). The motor provides up to 280 Nm maximum torque while supporting maximum mechanical speeds of 6,000 RPM. Its permanent magnet synchronous design offers excellent overload capability, smooth speed regulation, and highly accurate positioning for high-performance servo applications.
The 1FT7108-5AC7X-1XXX family includes numerous MLFB variants with different encoder technologies, shaft configurations (plain shaft or keyed shaft), optional holding brakes, connector orientations, and protection ratings. All models feature natural cooling, IM B5 flange mounting, DRIVE-CLiQ communication, integrated motor temperature monitoring, 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
- Designed for Siemens SINAMICS S120 servo drive systems
- Rated output power: 10.5 kW
- Rated speed: 2,000 RPM
- Rated torque: 50 Nm
- Stall torque (100 K): 70 Nm
- Maximum torque: 280 Nm
- Maximum mechanical speed: 6,000 RPM
- Natural convection cooling
- High overload capability
- DRIVE-CLiQ encoder interface
- Available with incremental, single-turn, and multiturn absolute encoders
- Plain shaft or keyed shaft options
- Optional integrated holding brake
- IM B5 flange mounting
- Rotatable power connector
- Integrated temperature monitoring
- IP64/IP65 protection (variant dependent)
Technical Specifications
| Specification | Details |
|---|---|
| Product Family | SIMOTICS S-1FT7 |
| Series | 1FT7108-5AC7X-1XXX |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Natural Cooling |
| Rated Power | 10.5 kW |
| Rated Speed | 2,000 RPM |
| Rated Torque | 50 Nm |
| Stall Torque (100 K) | 70 Nm |
| Maximum Torque | 280 Nm |
| Rated Current | 18 A |
| Stall Current (100 K) | 25 A |
| Maximum Current | 120 A |
| Maximum Mechanical Speed | 6,000 RPM |
| Maximum Converter Speed | 3,310 RPM |
| Number of Poles | 10 |
| Efficiency | 93% |
| Torque Constant | 2.72 Nm/A |
| Voltage Constant | 173.5 V/1000 RPM |
| Rotor Inertia | Approx. 248–276 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 Temperature Sensor |
| Drive Compatibility | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
Applications
- CNC Machining Centers
- CNC Milling Machines
- CNC Turning Centers
- Industrial Robotics
- Material Handling Systems
- Packaging Machinery
- Printing & Converting Equipment
- Semiconductor Manufacturing
- Woodworking Machinery
- Automated Production Lines
- Precision Motion Control Systems