AKM21G-SSMNEH-02 by Kollmorgen

The Kollmorgen AKM21G-SSMNEH-02 servo motor is a high-performance device from the AKM Synchronous Servo Motors series designed for demanding industrial automation tasks. Featuring a rated power of 190 W and a peak stall torque of 1.51 N·m, this compact unit achieves a maximum speed of 7800 rpm. With a motor weight of 0.82 kg and a frame dimension of 58 mm, it delivers a remarkable power-to-weight ratio while maintaining a small footprint. The motor’s motor length of 95.4 mm and shaft diameter of 9 mm ensure compatibility with space-constrained installations and precise mechanical couplings.

Technical capabilities of the AKM21G-SSMNEH-02 include a torque constant of 0.1 N·m/ARMS and a back EMF constant of 6.6 VRMS/krpm, which combine for efficient energy conversion and rapid dynamic response. Its peak stall current of 19.5 ARMS and viscous damping of 0.0046 N·m/krpm help to regulate torque output and minimize overshoot in high-precision applications. The motor’s thermal behavior is characterized by a thermal time constant of 8 min and a thermal resistance of 1.43 °C/W, providing reliable heat dissipation under continuous operation. A shaft length of 20 mm and a special flange configuration facilitate versatile mounting options, while the brake system without brake design streamlines maintenance.

Operational features of the AKM21G-SSMNEH-02 emphasize reliability and repeatability across various usage scenarios. Rated for an ambient temperature of up to 40 °C, it maintains stable performance in moderate industrial environments. The precision of the AKM Synchronous Servo Motor family ensures consistent positioning accuracy, even under rapid acceleration and deceleration cycles. Its robust thermal management and low internal inertia support extended run times without performance degradation, contributing to reduced downtime and maintenance costs. End users benefit from seamless drive tuning and software-based parameterization when paired with Kollmorgen control platforms.

Integration of the AKM21G-SSMNEH-02 into existing automation systems is straightforward, thanks to its standardized dimensions and electrical interfaces. It is ideally suited for applications such as compact robotic arms, pick-and-place modules, laboratory instruments, and high-speed indexing tables. The motor’s compatibility with Kollmorgen drives and feedback devices enables end-to-end solution scalability, from standalone units to multi-axis automation cells. By combining high torque density with exceptional dynamic response, the AKM21G-SSMNEH-02 offers a versatile solution for engineers seeking to optimize motion control performance in industrial settings.