Product Description:

The CTM33NLF75KAA00 is a hybrid stepper motor manufactured by Kollmorgen within the CT Stepper Motors series. Classified in the Cool Torque Maximum line, the unit is intended for high-torque open-loop positioning tasks in industrial automation equipment such as pick-and-place modules and indexing tables. By pairing its optimized magnetic circuit with a compatible bipolar drive, the motor delivers repeatable motion in systems that do not use feedback devices. Its hybrid stepper design supports accurate incremental movement and strong holding capability at standstill. This makes it suitable for machines that need reliable indexing, dwell holding, and simple drive integration.

Electrically, the motor is wound for bipolar operation and supports a phase current of 7.5 amps, allowing the drive to apply the full rated field without thermal derating. When energized in this mode, the CTM winding develops a holding torque of 13.6 N·m, giving machinery ample margin for static or low-speed loads. The stator uses a Size 34 / 8.5 cm frame, which keeps the lamination stack compact while accommodating a 340 VDC insulation system that separates the windings from the steel core. Installation uses NEMA through holes, so the motor can bolt directly to standard brackets and plates. Lead wires form the connection interface, and four motor terminals allow a bipolar drive to energize each phase independently.

Mechanical loading limits support demanding transmission arrangements. The shaft tolerates 100 lbs (45 kg) of axial force in either direction and up to 65 lbs (29 kg) of radial force at the centerline, which helps the motor handle belt tension and thrust loads without auxiliary bearings in lighter assemblies. A shaft with a straight keyway simplifies torque transfer to gears or pulleys. The 3-stack lamination design increases torque density without enlarging the frame. The motor ships without rear add-ons, and the uncluttered rear section can help preserve clearance in compact machine layouts.