CTM33NLF29KAA00 Kollmorgen
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The Kollmorgen CTM33NLF29KAA00 is part of the CT Stepper Motors series and features a size 34 frame with a straight keyway shaft type. This Cool Torque Maximum Series motor has a holding torque of 13.6 Nm, a rated current of 2.9 Amps, and comes with a 128.5 mm motor length. It is designed with NEMA through hole mounting and supports an axial shaft load of up to 100 lbs in either direction.
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Product Description:
The CTM33NLF29KAA00 is a hybrid stepper motor produced by Kollmorgen for the CT Stepper Motors series and delivered under the Cool Torque Maximum Series name. Because this model belongs to an Enhanced Series line for maximum torque and efficiency, it targets positioning and indexing tasks where high torque density is needed without closed-loop feedback. As a three-stack rotor device, it converts pulse commands from a drive into discrete 1.8-degree movements so that conveyors, gantries, or small machine tools can hold or advance a load precisely. This arrangement suits open-loop motion systems that depend on predictable step response during indexing, feeding, and short-travel positioning tasks.
The motor has a holding torque of 13.6 Nm, and its dynamic torque depends on the winding used. Each full step of 1.8° is supported by a detent torque of 0.37 Nm and a rotor inertia of 3.92 kg-cm². Rated phase current is 2.9 A through four leads, and the connection style uses open leads for direct termination. Open leads also allow direct wiring to the machine harness or terminal points without a molded connector. Phase resistance is 2.73 Ω, and inductance is 22 mH, which affects the electrical time constant and slew rate. The motor uses a three-stack construction, and mounting follows NEMA through-hole patterns on the Size 34 frame so it can bolt directly to standard brackets.
Mechanical loading is accommodated by an axial capacity of 100 lbs in either direction and a radial limit of 65 lbs (29 kg) at the shaft center. The straight keyway shaft projects from a housing that measures 128.5 mm overall, and the motor weighs 4.2 kg, which helps when it is mounted on end effectors or compact stages. Insulation withstands 340 VDC and resists 100 MΩ to ground, and the winding circuit runs from a supply of 2.9 VDC. Thermal resistance is 1.36 °C/W, which supports convection cooling. Through-hole mounting keeps alignment, and the motor can accept a keyed pulley or coupler without extra collars.
Frequently Asked Questions about CTM33NLF29KAA00:
Q: What kind of shaft does the CTM33NLF29KAA00 stepper motor use?
A: The CTM33NLF29KAA00 features a straight keyway shaft type.
Q: What is the holding torque of the CTM33NLF29KAA00 motor?
A: This stepper motor provides a holding torque of 13.6 Nm.
Q: What is the maximum axial shaft load for the CTM33NLF29KAA00?
A: It supports a maximum axial shaft load of 100 lbs (45 kg) in both directions.
Q: How many electrical connections does the CTM33NLF29KAA00 have and what style are they?
A: The motor is equipped with four lead connections.
Q: What is the step angle specification for the CTM33NLF29KAA00?
A: It features a step angle of 1.8°, ensuring precise movement per step.
