AMS (Advanced Micro Systems) designs high torque stepping motors. The AMS and AM series of stepper motors are available in three types including variable reluctance, permanent magnet and hybrid stepper motors. Features include high torque output AM series motors, 1.8° enhanced hybrid stepping, and double shafting. Size range for the models include 17, 23 and 34 units. Range of holding torque includes 32 to 1303 oz-in.