Profile: Astrosyn International Technology Ltd offers the widest range of high performance electrical rotating components and electronics with a diversity of choice. Our permanent magnet stepper motors feature dynamic torque at low speed and large basic step angles. These are fitted with ferrite or rare earth rotor magnets. It comprises of six frame sizes, from 20mm to 64mm. Within each frame size we offer one or more stack lengths and up to four basic step angles. Our stepper motor drives include cased and open frame models offering both bipolar & unipolar modes of operation.