This is the strongest Nema 23 stepper motors, it with step angle 1.8deg and size 57x57x113mm. It has 4 wires, each phase draws 4.2A, with holding torque 3.0Nm (425oz.in).

 

Manufacturer Part Number: 23HS45-4204S1
Motor Type: Bipolar Stepper
Step Angle: 1.8 deg
Holding Torque: 3.0Nm(425oz.in)
Rated Current/phase: 4.2A
Phase Resistance: 0.88ohms
Inductance: 3.4mH ± 20%(1KHz)

 

 

Frame Size: 57 x 57mm
Body Length: 113mm
Shaft Diameter: Φ8mm
Shaft Length: 24mm
D-cut Length: 20mm
Number of Leads: 4
Lead Length: 400mm
Weight: 1.668kg

 

 

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