1FK7042-2AK71-1RB2 SIEMENS Exclusive SIMOTICS S Synchronous Motor Original Brand New
The SIEMENS SIMOTICS S 1FK7042-2AK71-1RB2 is a high-precision synchronous motor designed to deliver maximum reliability and performance in modern industrial automation. With a continuous torque of 3 Nm and a rated power of 0.94 kW, this compact drive provides consistent rotational accuracy and smooth operation across demanding environments. Its 600 V DC supply voltage and naturally cooled design make it both efficient and robust for long-term use in high-speed applications reaching 6000 rpm.
Engineered for flexible integration, the 1FK7042-2AK71-1RB2 features an absolute encoder AM20DQI with 20-bit + 12-bit multi-turn resolution using a Drive-CLiQ interface. The rotatable power connector, feather-keyed shaft, and holding brake ensure simplified installation and secure mechanical coupling. Its IP65 housing (IP67 at the DE flange) guarantees excellent protection against dust and moisture, suitable for continuous industrial duty cycles.
Overview
The SIMOTICS S-1FK7 motor family represents a new generation of compact permanent-magnet synchronous motors developed for precision motion control. Their modular structure, available gearbox options, and encoder configurations allow seamless adaptation to nearly any automation scenario. Combined with SINAMICS S120 or S220 drive systems, these motors form a high-performance platform capable of precise speed and position control with minimal setup effort.
Design and Benefits
- Compact dimensions enable space-saving installation with high power density.
- Available in compact, high-dynamic, and high-inertia versions for optimized application performance.
- Exceptional thermal efficiency — heat dissipates naturally through the motor surface.
- High overload capacity and mechanical rigidity for extended operating life.
- Integrated encoder for accurate motion feedback and smooth dynamic response.
- Ideal for machine tools, robotics, handling systems, and packaging or textile machinery.
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Product Code: 1FK7042-2AK71-1RB2
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