Product Description:

The CTP33NLS37KAA00 belongs to Kollmorgen’s CT Stepper Motors series and is part of the Cool Torque Performance family, a high-torque product line. It is a hybrid step motor built for open-loop positioning tasks in industrial automation where repeatable incremental motion is required. This motor type is suited to applications that move in commanded step increments and hold position between moves without a feedback loop. The motor uses a straight keyway shaft and mounts through the front face with NEMA-pattern through holes, allowing direct installation in machines that use comparable stepper motors.

The motor delivers a peak holding torque of 13.6 N-m when driven in bipolar mode, and its phase windings draw 3.7 A of rated current from the stepper drive. The windings are insulated for up to 340 VDC, which matches many DC bus voltages used in indexers and microstepping amplifiers. A frame size of Size 34 measures 8.5 cm square and matches common gearboxes and couplings for this motor class, while the housing uses NEMA through holes so the motor can be bolted directly to machine plates without adapters. Power and sensor wiring exit as six connections on flying leads, giving flexibility for series or parallel coil hookup to match the required speed-torque curve without an added terminal block.

The shaft can support up to 100 lbs of axial force in either direction and 65 lbs of radial force at the centerline, which supports belt tension or pulley overhang without separate support bearings. Internally, the rotor uses a 3-stack lamination to increase magnetic surface and raise holding torque while maintaining smooth detent action. The rear face is open, with no encoder or brake, so an external feedback device can be added later if closed-loop operation is required. The open rear section also leaves space for application-specific accessories when a standard motor package is preferred at initial installation.