This is the two-phase closed-loop stepper motor series with 1000-line encoders, with frame sizes covering 28/42/57/60/86mm and a step angle of 1.8°, built-in 1000-line encoders. The static torque ranges from 0.11-12N·m, rated current 1.2-6.0A, compatible with 2HSS42, 2HSS57, 2HCS558, 2HSS86H/2HCS868H series drives. Different frame models correspond to different body lengths and shaft diameter specifications, with some models offering flat shaft and keyway shaft versions, meeting the two-phase closed-loop stepper motion control needs of different industrial scenarios, and supporting customization of non-standard shaft diameters.