Product Description:

The P22NSXB-LNN-NS-05 is a hybrid stepper motor produced by Pacific Scientific as part of the POWERMAX II P Motors series. It uses a two-stack, four-phase detent structure to create discrete rotational steps, so machine builders can command accurate motion from simple open-loop drives. In automated pick-and-place modules, small conveyors, or indexing fixtures, the unit converts pulse trains into incremental shaft movement and provides repeatable position control without servo feedback.

The motor’s envelope follows the NEMA 23 frame standard, giving it a 56 mm square mounting face that aligns with common gearbox and bracket patterns. The motor provides a holding torque of 1.51 Nm, while a detent torque of 0.049 Nm helps keep the shaft stable when power is removed. Each electrical pulse advances the rotor by 1.8 degrees, producing 200 full steps per revolution with ±1.5% accuracy. Dynamic response depends on the phase circuit: the parallel winding draws 4.6 A per phase across a resistance of 0.38 Ω and an inductance of 2.1 mH. This low-impedance design lets the drive supply high peak current for rapid acceleration while helping limit copper losses during normal duty.

Thermal behavior is influenced by a thermal resistance of 4.5 °C/W and an ambient operating range of -20 °C to +40 °C, allowing use in unheated factories or controlled enclosures. The windings are rated to Class B 130 °C, so the insulation remains within its intended temperature class during continuous operation when the application is properly matched to the drive. The unit has a mass of 1.13 kg, which helps keep moving assemblies manageable on gantry-mounted systems and other compact axes. It also uses a 6.35 mm smooth shaft, receptacle-style connections, and a NEMA mounting flange for straightforward mechanical and electrical installation.