AKM21C-ANCNDB00

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The Kollmorgen AKM21C-ANCNDB00 servo motor is part of the AKM Synchronous Servo Motors and boasts a rated power of 0.32 kW at 230VAC. It operates at a rated speed of 8000 min⁻¹ and achieves a peak torque of 1.47 Nm. The servo motor weighs 0.82 kg and features a torque constant of 0.3 Nm/A.

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Product Description:

The AKM21C-ANCNDB00 Synchronous Servo Motor is a type of electric motor designed for precise position, velocity and torque control which is made by Kollmorgen. Kolmorgen is a well-known company which manufactures industrial products for use in industrial automation.

The AKM21C-ANCNDB00 synchronous servo motor nominal speed is 2500 revolutions per minute which it can sustain continuously under rated conditions that makes it suitable for medium to high-speed applications such as CNC machinery, robotics or conveyors. Its mass is 0.82 kg, which is relatively lightweight and makes it ideal for space-constrained or mobile applications, such as robotic arms or compact automated systems. It comes with EnDat single-turn feedback device which represents a high-precision digital encoder interface that measures the absolute position of the shaft within one full rotation but not over multiple turns. It includes a smooth shaft which lacks a keyway or thread which is typically used with clamping style couplings or pulleys. During rapid acceleration or heavy load it draws 6.3 A current which indicates strong burst torque capabilities useful during high speed starts or stops. It includes a PTC thermistor which provides thermal protection when the winding temperature reaches around 155°C.

The AKM Synchronous Servo Motors series uses shielded cables for both resolver (feedback) and power, with PUR (polyurethane) and PETP (polyethylene terephthalate) insulation which provides excellent abrasion, oil and chemical resistance. The module connector is rotatable and angled for flexible installation in tight spaces while protected from dust and water jets. The casing is finished in a matte black tone (RAL 9005), which is aesthetic and functional. Without rotating it is able to provide 0.48 nm torque which is useful when holding a position under load.

Max Mains Voltage
230 VAC
Number Of Poles
6
Peak Current
6.3 A
Peak Torque
1.47 Nm
Rated Power
0.32 kW at 230VAC
Rated Speed
8000 min⁻¹ at 230VAC
Rated Torque
0.39 Nm at 230VAC
Standstill Current
1.58 A
Standstill Torque
0.48 Nm
Thermal Time Constant
8 min for 21x model
Torque Constant
0.3 Nm/A
Voltage Constant
19.5 mV/min⁻¹
Weight
0.82 kg for 21x model
Winding Inductance
19 mH
Winding Resistance
13 Ohms

Frequently Asked Questions about AKM21C-ANCNDB00:

Q: Why is a smooth shaft used in the AKM21C-ANCNDB00 servo motor?

A: A smooth shaft allows for easy integration with clamping couplings. It minimizes mechanical stress and helps maintain alignment in precision assemblies.

Q: How does the EnDat single-turn encoder improve control accuracy?

A: The EnDat feedback provides high-resolution position data. This ensures tight control loops and enhances motion precision in servo applications.

Q: Why is IP65-rated connector important in the AKM21C-ANCNDB00 servo motor?

A: The IP65 rating offers strong protection against dust and low-pressure water jets. This ensures consistent performance in harsh or dirty industrial environments.

Q: What benefit does the PUR/PETP insulation bring to cable durability?

A: PUR and PETP offer high resistance to abrasion and chemicals. This makes the cables long-lasting even in environments with oils or mechanical stress.

Q: How does the 0.48 Nm standstill torque benefit industrial machinery?

A: It maintains position without rotation under load. This is critical for holding precision in robotic arms or indexing machines.


Internal Product Review

  • ‘‘The AKM21C-ANCNDB00 synchronous servo motor from Kollmorgen delivers high precision with its EnDat single-turn feedback system. It ensures efficient performance at 2500 rpm with strong thermal protection via a PTC thermistor. Its 0.82 kg lightweight build, smooth shaft, and 6.3 A peak current enhance system flexibility.’’

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