Product Description:

Kollmorgen manufactures the CTP33NLS59KAA00 within its CT Stepper Motors series. As a member of the Cool Torque Performance family, this size-34 unit converts commanded pulse trains into incremental rotary motion. It is intended for indexing tables, pick-and-place axes, and general open-loop positioning tasks in automated equipment.

The motor delivers a holding torque of 1250 oz-in, enabling it to maintain position against static loads without an external brake. A phase rated current of 5.9 A pairs with a low phase resistance of 0.70 ohms, allowing drives to supply high peak energy while keeping copper losses modest. Each revolution is divided into 200 full steps per rev, produced by a mechanical step angle of 1.8°, and the specified ±3% step accuracy supports repeatable incremental moves in the sub-millimeter range. A 3.2 mH phase inductance tempers di/dt during current transitions, and the 0.0555 oz-in-s² rotor inertia helps moderate acceleration overshoot. Together with the three-stack lamination, these parameters shape the motor’s torque and speed performance across its intended operating range.

The straight-keyed shaft can accept an axial thrust of 100 lbs in either direction and can sustain a radial force of 65 lbs at the shaft center, which helps protect the bearings when pulleys or couplings are side-loaded. The frame mounts through NEMA through-holes and weighs 9.1 lb, which is important in gantry and slide systems where moving mass affects cycle time. Six lead wires simplify wiring for series- or parallel-connected bipolar drive configurations, and 100 MΩ insulation resistance is paired with a dielectric withstand rating of 340 VDC for use with higher-voltage micro-stepping controllers. A thermal resistance of 1.36 °C/W guides heat sink sizing so that winding temperature remains within the Class B limit, and the 38 oz-in detent torque provides passive holding force when power is removed.