Overview of Siemens 1FK7042-5AF71-1AG2
Shop the genuine Siemens 1FK7042-5AF71-1AG2 online today for your automation system with worldwide delivery. This compact permanent-magnet synchronous servo motor from the SIMOTICS S 1FK7 series delivers precise motion control for industrial applications worldwide. Built with rare-earth magnetic material and rated at 0.82 kW with 3,000 rpm at 100K temperature class, this motor combines compact design with robust performance. The 1FK7042-5AF71-1AG2 features natural air cooling, IP65 protection with IP67 DE flange, and integrated encoder capability for speed and position feedback. Engineered for automotive, aerospace, and electronics manufacturing, this servo motor is factory-grade and ready for immediate deployment in your control system.
Key Features of Siemens 1FK7042-5AF71-1AG2
- Permanent-magnet synchronous motor technology with rare-earth magnets
- Compact shaft height (48 mm) with 19 mm diameter for space-constrained installations
- Rated torque of 2.6 Nm at 100K with maximum torque of 10.5 Nm
- High efficiency at 89% with low moment of inertia (3.01 kgcm²)
- Natural cooling design weighing only 4.9 kg for lightweight integration
- IP65 degree of protection with DE flange IP67 for harsh environments
- Integrated encoder systems for closed-loop control and feedback
- 3-phase operation at 1.95 A rated current with 7.4 A maximum capability
- Vibration severity Grade A compliance for precision applications
- IM B5 mounting (IM V1, IM V3 compatible) with power/signal connectors
Technical Specs of Siemens 1FK7042-5AF71-1AG2
Review Siemens 1FK7042-5AF71-1AG2 specifications and technical data covering voltage, I/O, and communication before installation to ensure system compatibility.
| Parameter |
Value |
| Motor Type |
Permanent-Magnet Synchronous (Compact) |
| Rated Speed (100K) |
3,000 rpm |
| Rated Torque (100K) |
2.6 Nm |
| Power Output |
0.82 kW |
| Rated Current |
1.9 A |
| Maximum Torque |
10.5 Nm |
| Maximum Current |
7.4 A |
| Torque Constant |
1.40 Nm/A |
| Voltage Constant (20°C) |
89.0 V/1000 min⁻¹ |
| Winding Resistance |
5.15 Ω |
| Mechanical Time Constant |
2.37 ms |
| Thermal Time Constant |
30 min |
| Efficiency |
89.0% |
| Degree of Protection |
IP65 (IP67 DE Flange) |
| Net Weight |
4.9 kg |
| Vibration Grade |
Grade A |
Applications / Use Case
This Siemens 1FK7042-5AF71-1AG2 is commonly used in industrial automation, process control, machine automation, production line systems, packaging and conveyor operations, factory control panels, and motion control setups worldwide. The compact servo motor excels in applications demanding precise positioning and torque control, including CNC machinery, robotic arms, material handling systems, and auxiliary axes in automated manufacturing environments. Its high overload capability and integrated encoder systems make it ideal for closed-loop feedback applications where accuracy and repeatability are critical. The motor's natural cooling design and robust construction ensure reliable long-term operation in continuous-duty industrial environments.
Price & Availability
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