Product Description:

The CTM33NLF13KAA00 is a hybrid stepper motor manufactured by Kollmorgen and placed within the CT Stepper Motors series, in the Cool Torque Maximum line. The unit converts digital pulse commands from a drive into incremental mechanical rotation, making it suitable for positioning tables, pick-and-place heads, and other automation stages that need precise open-loop motion. Its hybrid design supports repeatable low-speed positioning in equipment that relies on step commands for controlled indexing and short travel moves.

Its full-step resolution is 1.8°, and the step accuracy is ±3%, so commanded pulses correspond closely to shaft movement. Under bipolar excitation, the CTM version produces 13.6 N·m of holding torque while drawing a rated phase current of 1.3 A DC. The phase resistance of 13.8 Ω and inductance of 111 mH influence driver sizing and the maximum practical pulse rate before torque begins to drop. The motor also withstands an axial thrust of 100 lbs in either direction, uses a frame size 34 housing, and has a 3-stack magnetic core in a 128.5 mm body. Power exits through four color-coded leads, and the motor uses a straight shaft with a keyway together with NEMA through-hole mounting.

A radial side load of 65 lbs at the shaft center helps limit bearing stress during belt tensioning or pulley overhang. Thermal behavior is supported by a winding-to-case resistance of 1.36 °C/W, which helps estimate housing temperature from copper loss during operation. Start-stop smoothness is aided by a detent torque of 0.37 N·m and a rotor inertia of 3.92 kg-cm², balancing load response with damping against resonance. Electrical insulation is rated at 100 MΩ with a 340 VDC dielectric rating, the rear face remains free of accessories, and the total mass is 4.2 kg. The design follows the Enhanced Series maximum torque and efficiency characteristic for high torque density within the CT platform.