Product Description:

The CTP20NLS34NAA00 is a hybrid stepper motor manufactured by Kollmorgen for the CT Stepper Motors series and listed in the Cool Torque Performance Series with a high-torque performance designation. In automated pick-and-place machines or indexing tables, the motor converts pulse sequences from a stepper drive into precise angular displacement, enabling open-loop positioning without the complexity of an encoder. The thermal design suits tight control cabinets and distributed axes.

Electrically, the motor occupies the Size 23 / 5.7 cm frame class, making it suitable for designs that use the common NEMA 23 bolt pattern. When driven bipolarly, it can deliver 0.71 N·m of holding torque, a level appropriate for light to mid-range indexing duties. Each phase draws 3.4 A at a resistance of 0.73 Ω, so drive electronics must be sized for the corresponding copper losses and power dissipation. The low coil inductance of 0.83 mH permits rapid current rise, enabling high step rates before torque begins to roll off. Six discrete leads are provided, supporting either series or parallel coil connection modes, and the windings withstand up to 340 VDC insulation stress for use with high-voltage microstepping drives.

The front flange uses NEMA through holes for rigid face mounting, and a round smooth shaft simplifies coupling when setscrews or clamp hubs are used. The shaft can support axial forces up to 50 lbs in either direction and radial loading of 20 lbs measured at the shaft center, covering belt or gear loads. Rotor inertia is 0.000018 kg·m², so acceleration commands reach target speed quickly, helped by the short stack configuration and a motor mass of 0.45 kg. Each 200-step revolution uses a native 1.8° step angle, while a thermal resistance of 3.99 °C/W helps determine enclosure airflow requirements. No rear add-ons are fitted, keeping overall length minimal.