Product Description:

The CTM32NLF99KAA00 is a two-phase stepper motor manufactured by Kollmorgen as part of the CT Stepper Motors series within the Cool Torque Maximum Series. It is intended for incremental motion in indexers, material handling axes, and light pressing stations where repeatable open-loop positioning is suitable. A Size 34 frame measures 8.5 cm and matches common NEMA 34 mounting patterns, which makes the motor easy to integrate into standard machine layouts. Its overall design focuses on high torque density in a familiar frame size for industrial motion applications.

During full-step operation, the motor can generate up to 9.5 N·m of bipolar holding torque, allowing substantial loads to remain stationary without an external brake. That output is achieved when each phase is energized with 9.9 A, so the selected drive must be able to supply that current level. Motion resolution comes from a 1.8° step angle, which produces 200 full steps per revolution, and a compatible controller can subdivide those steps for smoother travel. A winding inductance of 1.4 mH supports current response during acceleration and helps the motor react cleanly to command changes. Phase resistance is 0.23 Ω, insulation is rated at 340 VDC, and insulation resistance is 100 MΩ to limit leakage from the windings to the core.

The straight keyway shaft can tolerate an axial load of 100 lbs in either direction and a radial load of 65 lbs at the shaft center, which supports couplings for belt-driven or screw-driven mechanisms. A thermal resistance of 1.55 °C/W shows how heat moves from the motor to the housing during operation, while rotor inertia of 0.261 × 10⁻³ kg·m² affects how quickly the motor starts and stops. The motor also uses through-hole NEMA mounting, four lead connections, and a 2-stack lamination length. Its listed weight is 3.0 kg, which is useful when planning support structure and mounting hardware.