Product Description:

The CTM32NLF11KAA00 stepper motor is produced by Kollmorgen as part of the CT Stepper Motors series and belongs to the Cool Torque Maximum Series. It is intended for positioning and speed-controlled duties in machine tools, packaging lines, and material-handling axes, where it converts pulse commands from a bipolar drive into discrete shaft increments with high holding capability. By pairing an 8.5 cm size-34 frame with an enhanced magnetic circuit, the motor delivers high torque density while remaining compatible with standard NEMA through-hole mounting patterns. This operating style is useful where repeatable indexing, low-speed control, and reliable holding between moves are required.

The motor uses a compact stack length that helps keep rotor inertia moderate while extending the active core for greater energy storage. The frame envelope is Size 34, and power is supplied through four leads, which simplifies connection to existing harnesses. It is wound for a phase current of 1.1 A, and the insulation system withstands up to 340 VDC, allowing operation with a wide range of indexer and microstep drives. When energized from a bipolar amplifier, the motor produces 9.5 N-m of holding torque, which is suitable for heavy linear loads. The leaded connection style is also practical in installations where a molded connector is not required.

The shaft tolerates an axial force of 100 lbs in either direction and a radial force of 65 lbs at the centerline, so couplings and pulleys can be mounted without auxiliary bearings. Torque is transferred through a shaft with a straight keyway, and the motor mounts to equipment through NEMA through holes. It has a 2-stack lamination design and no rear accessories, so the rear of the motor remains clear for standard installation layouts. The keyway shaft helps maintain positive torque transfer when the motor is connected to pulleys, gears, or similar drive elements.