1FK7043-4CH71-1QB1 SIEMENS Exclusive High-Performance Synchronous Motor Original Brand New

1FK7043-4CH71-1QB1 SIEMENS Exclusive High-Performance Synchronous Motor Original Brand New

The SIEMENS SIMOTICS S 1FK7043-4CH71-1QB1 is a high-quality synchronous motor engineered for exceptional precision, efficiency, and performance in demanding industrial automation systems. Delivering a rated power of 1.2 kW and torque of 3.5 Nm at 4500 rpm, this advanced servo motor features a naturally cooled design for reliable operation under continuous load. Built with a robust housing and IP65 protection, it withstands challenging environments while maintaining accuracy and long-term stability. The motor includes an absolute encoder (AS20DQI) with DRIVE-CLiQ interface and a fitted key shaft for precise motion control and secure mechanical coupling. Its rotatable power connector and integrated holding brake further enhance installation flexibility and operational safety.

Overview

The SIMOTICS S-1FK7 motor series represents a new generation of compact, permanent-magnet synchronous motors designed for high performance and versatility. With their expanded range of variants, encoder options, and gearbox compatibility, these motors can be perfectly matched to a wide spectrum of industrial applications. When combined with SINAMICS S120 or S220 drive systems, the SIMOTICS S-1FK7 family provides a powerful drive solution offering seamless integration, high functionality, and efficient control for motion and positioning tasks. Their design enables operation without external cooling, relying on the motor surface for heat dissipation while maintaining excellent overload capability and thermal efficiency.

Design and Applications

The 1FK7043-4CH71-1QB1 belongs to the High Dynamic category within the SIMOTICS S-1FK7 family, characterized by an extremely low rotor moment of inertia and rapid acceleration response. These attributes make it ideal for use in machine tools, robotic systems, packaging machines, textile production, and printing applications. The rugged construction ensures reliable performance in high-vibration or variable load environments, while the motor’s compact dimensions allow for space-saving installation. Whether employed as a primary drive or auxiliary axis, it delivers exceptional precision and energy efficiency for continuous industrial operation.

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Data Sheet (PDF)

Product Code: 1FK7043-4CH71-1QB1

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