Description:  Nema23 57 3N.m Integrated Closed Loop Stepper Motor Servo Motor with Driver for CNC.     Specification:  Motor Length: 112mm(Step Motor Length)+32mm.  Shaft Diameter: 8mm.  Voltage: 24-48VDC.  Step Angle: 1.8°.  Power: 0.18KW.  Phase: 2.  Rated torque: 3Nm.  Rated current: 4.2A.  Resistance: 0.7±10%Ω.  Inductance: 3.0±20%mH.  Class insulation: B.  Weight: 1.9KG.     Features:  1. Smooth rotating, stable operations, low noise.  2. Automatically adjust position deviation without losing steps.  3. Fast starting speed, high speed, high torque.  4. The current is adjusted according to the load to reduce the motor temperature.  5. With over-current, over-voltage, position excess and other protection.  6. Maximum response frequency 2000.  7. 16 kinds of subdivisions with a maximum of 51200 steps / revolution are available.  8. Voltage range 24-48VDC.     Package Included:  1 x 3N.m Integrated Closed Loop Stepper Motor