N12M4T Kollmorgen
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The Kollmorgen N12M4T is part of the ServoDisc Pancake DC Motors series and has a weight of 2.4 kilograms. This motor features a continuous stall torque of 90 N-cm and a rated speed of 3000 RPM. It is rated for 45.0 Volts and delivers 278 W of power, with a peak current of 83 Amps.
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Product Description:
The N12M4T is a DC servo motor produced by Kollmorgen within the ServoDisc Pancake DC Motors series. This frameless, flat-profile unit uses an ironless disk armature to deliver low inertia and fast torque rise, making it suitable for positioning tables, semiconductor tools, and other industrial automation axes. By converting electrical energy into rotary motion with minimal cogging, the motor provides smooth velocity control for closed-loop drive systems.
At its nominal operating point the motor accepts 45.0 V across the terminals and reaches a shaft speed of 3000 RPM while delivering 278 W of mechanical output. The available continuous stall torque is 90 N-cm, permitting the load to be held without overheating whenever motion is stopped. A torque constant of 12.57 N-cm/A links commanded armature current to developed torque, so drive electronics can predict output torque precisely from current feedback. During rated operation the armature draws 8.10 A, and a back-EMF constant of 13.10 V/KRPM defines the voltage generated whenever the shaft is driven externally. The tachogenerator winding produces 5.90 V/KRPM for speed feedback, and rated torque is specified at 89 N-cm at 25 °C and 79 N-cm at 40 °C.
For transient demands the motor can supply 979 N-cm of torque, supported by a momentary armature current of 83 A before thermal limits intervene. Electrical losses are constrained by a winding resistance of 0.750 Ohm, while the flat disk rotor exhibits a moment of inertia of 1.84 kg-cm², allowing rapid acceleration to the maximum recommended 6000 RPM. System designers can size power supplies using the continuous terminal resistance and the peak current together with the 1.84 kg-cm² inertia value. The assembly weighs 2.4 kg, so mounting structures experience modest static loading even when the motor is oriented vertically.
Frequently Asked Questions about N12M4T:
Q: What is the back EMF constant of the Kollmorgen N12M4T motor?
A: The N12M4T motor has a back EMF constant of 13.10 V/KRPM.
Q: What is the maximum recommended speed for the N12M4T motor?
A: This motor is capable of delivering a maximum recommended speed of 6000 RPM.
Q: What is the rated torque of the N12M4T motor at 25°C?
A: At 25°C, the rated torque for this model is 89 N-cm.
Q: What is the peak torque output of the Kollmorgen N12M4T?
A: The N12M4T can provide a peak torque of 979 N-cm.
Q: What is the rated power output for the N12M4T motor?
A: This motor operates at a rated power of 278 W.
