1FK7044-4CH71-1RB1 SIEMENS Exclusive SIMOTICS S Synchronous Motor Original Brand New

1FK7044-4CH71-1RB1 SIEMENS Exclusive SIMOTICS S Synchronous Motor Original Brand New

The SIEMENS 1FK7044-4CH71-1RB1 is an exclusive, high-performance synchronous motor from the SIMOTICS S-1FK7 series, engineered for precision and reliability in industrial automation. Featuring a rated power of 1.4 kW, a rated speed of 4500 rpm, and a torque of 4.5 Nm, this motor delivers efficient motion control for demanding applications. The unit operates on a 600 V DC supply and offers natural cooling for consistent thermal management. With an IP65 protection rating, a rotatable power connector, and a shaft with fitted key and holding brake, it ensures long-lasting operation in tough environments. The integrated AM20DQI absolute encoder (20-bit + 12-bit multiturn) with DRIVE-CLiQ interface provides precise position feedback, supporting dynamic control and high accuracy in servo applications.

Overview

The SIMOTICS S-1FK7 motor family by Siemens represents a new standard for compact, permanent-magnet synchronous motors. The design supports a wide range of configurations, including various encoders and gear combinations, making it suitable for both standard and high-performance automation systems. When paired with SINAMICS S120 or S220 drive systems, it forms a complete, scalable drive package with superior flexibility and control precision. The motors feature surface cooling to efficiently dissipate heat without the need for external fans, ensuring quiet and reliable operation.

Design and Benefits

The 1FK7044-4CH71-1RB1 is part of the High Dynamic (HD) variant, offering rapid response and smooth performance due to its low rotor inertia. It supports fast acceleration and deceleration, which is critical in machines requiring quick positioning. Additional benefits include:

• Compact form factor for space-saving integration
• Universal application compatibility across various industries
• High power density with minimal vibration
• Flexible encoder and gearbox configurations
• Robust build for consistent operation under heavy load

Typical applications include machine tools, robotics, packaging systems, and textile machinery, where accuracy and responsiveness are essential. The optimized design reduces commissioning effort and ensures consistent control performance in both stable and variable load conditions.

Download

Data Sheet (PDF)

Product Code: 1FK7044-4CH71-1RB1

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