ST5918 high-torque NEMA 23 stepper motor

The ST5918 is a stepper motor series from Nanotec in NEMA 23 frame size, which is 57 mm square flange. Rated current and winding resistance differ by suffix, as shown in the order code, such as ST5918S2008-A or ST5918X3008-A. Variants include single or double shaft, shaft with flat or key, and options with integrated brake, encoder, or planetary gearhead. The motors use a high quality rotor and stator design for good torque at speed and low resonance when used with a microstepping drive. Typical applications include packaging and labeling machines, medical and laboratory automation, textile and printing equipment, 3D printers, CNC axes, and positioning stages.