AKM31H-ACS22-02

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The AKM31H-ACS22-02, part of Kollmorgen's AKM Synchronous Servo Motors series, delivers a continuous stall torque of 1.23 N-m. It achieves a peak stall torque of 4.06 N-m and a maximum speed of 8000 RPM at 120 VAC. With a rated power of 609 Watts, it ensures efficient and precise performance.

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Product Description:

Part of the impressive AKM Kollmorgen series, the AKM31H-ACS22-02 offers refined motion control in demanding automation setups. Its high-quality build and dynamic response make it a reliable choice for precise positioning and speed regulation in applications such as robotics, packaging, and material handling. Designed to integrate smoothly into complex control systems, the motor offers flexibility in system design and accommodates a wide range of machinery. It is especially suited for high-speed environments with its robust 8000 RPM speed capacity. This allows it to operate efficiently in high-speed motion control applications, delivering rapid positioning or repetitive motion as required.

The AKM31H-ACS22-02’s 609 Watts output is designed to ensure stable performance in heavy-duty machinery. It delivers robust power to drive high-loads, ensuring that the motor can withstand demanding tasks without excess wear or overheating. This makes it ideal for automated setups that demand high power levels for reliability and enhanced production. The motor’s peak torque at standstill is an impressive 4.06 Nm, which enables it to supply the required force during start-up or momentary load surges. The high stall torque ensures that the motor can maintain stability without losing position or control, preventing stalling under demanding operating conditions.

This motor’s rotor inertia is 0.000033 kg·m², allowing for rapid acceleration and deceleration during motion control. The low rotor inertia is a key factor in applications that require fast response times and precise positioning since it enhances system efficiency and improves cycle times. With a rated thermal resistance of 1.11 °C/Watt, the motor is able to transfer heat away from critical components more effectively, reducing the risk of overheating. This enhances the motor’s reliability and allows it to maintain consistent performance even in high-cycle applications.

Back Emf Constant
13.7 Vrms/kRPM
Continuous Stall Current
5.85 Arms
Continuous Stall Torque
1.23 N-m
Dc Resistance (line To Line)
1.29 Ohms
Maximum Speed Rpm
8000 RPM (120 VAC)
Peak Stall Current
23.4 Arms
Peak Stall Torque
4.06 N-m
Rated Power
609 Watts
Rotor Inertia
0.000033 kg-m²
Static Friction (less Shaft Seal)
0.014 N-m
Thermal Resistance
1.11 °C/watt
Thermal Time Constant
14 minutes
Torque Constant
0.21 N-m/Arms
Viscous Damping
0.002 N-m/kRPM

Frequently Asked Questions about AKM31H-ACS22-02:

Q: What is the maximum speed of the AKM31H-ACS22-02 motor?

A: The AKM31H-ACS22-02 motor has a maximum speed of 8,000 RPM, enabling high efficiency in high-speed applications.

Q: What is the peak stall torque of the AKM31H-ACS22-02 motor?

A: The AKM31H-ACS22-02 motor has a peak stall torque of 4.06 N·m which allows the motor to handle substantial loads at low speeds without stalling.

Q: What is the rotor inertia of the AKM31H-ACS22-02 motor?

A: The AKM31H-ACS22-02 motor has a rotor inertia of 0.000033 kg·m². This low inertia contributes to fast, responsive movements.

Q: What is the thermal resistance of the AKM31H-ACS22-02 motor?

A: The AKM31H-ACS22-02 motor has a thermal resistance of 1.11 °C/watt. This allows for efficient heat dissipation, preventing the motor from overheating during extended use.

Q: How much continuous power does the AKM31H-ACS22-02 motor deliver?

A: The AKM31H-ACS22-02 motor delivers a continuous power of 609 watts. This power output ensures sustained performance in demanding industrial applications.


Internal Product Review

  • ‘‘The AKM31H-ACS22-02 motor delivers excellent performance for high-precision applications like robotics and CNC machinery. Its smooth acceleration and deceleration are impressive in fast paced applications, but its peak torque may be less than other motors in the same series.’’

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