AKM21G-ACSN2-02

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The AKM21G-ACSN2-02 is a servo motor with a continuous stall torque of 0.5 N-m and a maximum speed of 7800 rpm. Manufactured by Kollmorgen in the AKM Synchronous Servo Motors series, it delivers a rated power of 190 Watts. The motor features a peak stall torque of 1.51 N-m and a rotor inertia of 0.0000107 kg-m².

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Product Description:

The AKM21G-ACSN2-02 motor is made for high-speed applications. It achieves 7800 revolutions per minute under normal load. The motor delivers a steady output of 190 Watts. It is most suitable for small applications with minimal space requirements. Torque constant is 0.1 Newton meter per ampere input. It enables accurate torque with minimal variation in the unit. It gives smoother acceleration and improved motion control.

The DC resistance of this unit is 1.44 ohms at 25° C. This level reduces internal heat when running under standard conditions. Internal windings are designed to maximize thermal efficiency. It maintains the motor within stable operations under light to medium loads. It is compact enough to be mounted and installed conveniently. The frame design applies to small tools and machines. This model runs in low noise and vibration conditions. That makes it perfect for sensitive working conditions. The motor is sensitive when responding to operating commands. Its structure ensures smooth torque during high-frequency cycling. It is used in robots, test equipment, and light assemblies. The electrical behavior remains stable when operating conditions change. The low resistance also minimizes energy loss greatly. It provides a good balance of speed and control. Suitable for applications where accuracy and repeatable motion is required. The AKM21G-ACSN2-02 works well with drive systems integrated. It is consistent even in multi-axis units.

All motions are stable, even at higher speed. Designed to be reliable in small-scale automation processes. The motor has quality components that provide minimal failure possibility. It supports various drive configurations. In general, this motor provides fast response and convenient control. It performs well in long operating cycles. The AKM21G-ACSN2-02 provides smooth movement with high accuracy when in operation.

Back Emf Constant
6.6 Vrms/kRPM
Cont. Stall Torque @ 60°c Rise
0.4 N-m
Continuous Stall Current
4.87 Arms
Continuous Stall Current @ 60° C Rise
4 Arms
Continuous Stall Torque
0.5 N-m
Dc Resistance @ 25° C
1.44 ohms (line to line)
Maximum Speed Rpm
7800
Peak Stall Current
19.5 Arms
Peak Stall Torque
1.51 N-m
Rated Power
190 Watts
Rotor Inertia
0.0000107 kg-m²
Thermal Resistance
1.43 °C/watt
Thermal Time Constant
8 minutes
Torque Constant
0.1 N-m/Arms

Frequently Asked Questions about AKM21G-ACSN2-02:

Q: What is the continuous stall torque of AKM21G-ACSN2-02 at 60°C rise?

A: The continuous stall torque of AKM21G-ACSN2-02 at 60°C rise is 0.4 N-m.

Q: What is the peak stall torque of AKM21G-ACSN2-02?

A: The peak stall torque of AKM21G-ACSN2-02 is 1.51 Newton-meters.

Q: What is the rated power of AKM21G-ACSN2-02?

A: The rated power of AKM21G-ACSN2-02 is 190 watts.

Q: What is the DC resistance of AKM21G-ACSN2-02 at 25°C?

A: The DC resistance of AKM21G-ACSN2-02 at 25°C is 1.44 ohms line to line.

Q: What is the maximum speed of AKM21G-ACSN2-02?

A: The maximum speed of AKM21G-ACSN2-02 is 7800 RPM.


Internal Product Review

  • ‘‘Kollmorgen’s AKM21G-ACSN2-02 motor is efficient and adaptable. It runs quietly and integrates easily into setups requiring fine control. There’s little calibration needed once it’s installed. This model provides a reliable user experience and holds up well under long usage hours. Overall, a steady and practical motor.’’

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