Product Description:

The CTM22NLF19NAA00 stepper motor is manufactured by Kollmorgen as part of the CT Stepper Motors series. Supplied in the Cool Torque Maximum branch, it provides incremental motion control that positions tooling, actuators, and small conveyors in automated equipment. Its step-by-step operation supports repeatable indexing where simple, accurate positioning is needed. It is suited to compact machinery that needs controlled starting and stopping without relying on a complex feedback package.

With a Size 23 frame measuring 5.7 cm square, a two-stack lamination core, and a rotor inertia of 0.000048 kg·m², the motor fits the NEMA 23 envelope while still delivering 3.32 N·m of holding torque in bipolar drive mode. Each electrical revolution is divided into 200 full steps, equal to a 1.8° mechanical increment, so motion controllers can achieve fine position resolution without micro-stepping. The stator is wound for 1.9 A DC per phase and insulated to 340 VDC, allowing operation on a wide range of current-mode drives. Two phases are brought out through color-coded leads, and the four conductors simplify series or parallel coil wiring. Leads exit the housing rather than a rear connector because no rear connector is fitted. Through-hole mounting on the NEMA face eases attachment to gearheads or brackets, and the round smooth shaft is 6.35 mm in diameter with a working length of 20.57 mm for direct-coupled couplings.

The mechanical powertrain tolerates an axial load of 50 lbs (23 kg) in either direction and a radial load of 20 lbs (9 kg) at the shaft center, protecting the bearings in belt or pinion drives. Electrical dynamics are influenced by a phase inductance of 11 mH and a phase resistance of 3.25 Ω, values that influence current rise time and copper losses during high-speed operation. The thermal path from winding to case is 2.62 °C/W, and the 1.13 kg mass helps absorb short duty-cycle heating. The motor is supplied without a brake, which helps keep overall length and weight low.