STEPPERONLINE Permanent Magnet (PM) Captive Linear Stepper Motor Φ25x15mm 0.23A Lead 1mm/0.039" Travel 22mm for Medical Equipment, Coffee Machine, Control Valve: Amazon.com: Industrial & Scientific
Permanent Magnet Stepper Motor : Construction, Working & Applications
What is a Permanent Magnet Stepper Motor? - its working - Circuit Globe