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              ZR Axis ActuatorThe ZR axis actuator is a direct drive type, where the hollow motor drives the ball screw and ball spline nut directly, resulting in a compact appearance shape. The Z-axis motor is driven to rotate the ball screw nut to achieve linear movement, where the spline nut acts as a stop and guide structure for the screw shaft. 
 
                 
                
             
             
             
            