Product Description:

The CTM22NLS49NAA00 is a hybrid stepper motor manufactured by Kollmorgen and supplied within the CT Stepper Motors series. It belongs to the Cool Torque Maximum Series subfamily, which emphasizes high output density. Designed for indexers, small gantries, and general positioning axes, the motor converts drive pulses into incremental 1.8-degree steps, providing open-loop motion control where feedback is not required. When paired with microstepping drives, it supplies precise torque for conveyors, pick-and-place heads, and light machining tables.

Electrically, the motor delivers a bipolar holding torque of 3.32 N-m while drawing a rated phase current of 4.9 A. The low winding inductance of 0.81 mH permits rapid current rise times, so higher pulse rates can be used without losing synchronism. Winding resistance is 0.53 ohms, which helps limit I²R heating during continuous duty. An insulation system qualified for 340 VDC allows operation with high-bus-voltage microstepping amplifiers. Six pre-tinned leads provide phase and center-tap access for series, parallel, or unipolar wiring. The motor is built on a Size 23 frame that measures 57 mm square and uses a two-stack lamination to maximize flux per unit length. Mounting follows NEMA through-hole dimensions, so the unit fits standardized bearing plates.

Mechanical limits include an axial shaft load of 50 lbs (23 kg) in either direction and a radial rating of 20 lbs (9 kg) at the shaft center, which helps protect the precision bearings from premature wear. The rotor inertia of 0.000048 kg-m² balances acceleration response with load stability, while a thermal resistance of 2.62 °C/W indicates how quickly heat is transferred to ambient air. A round, smooth shaft simplifies coupling, and the rear face is plain, without additional encoders or brakes. Total weight is 1.13 kg, and the leads exit straight from the case.