Nema 23 Stepper Motor Bipolar 1.8 Deg 1.26Nm (178.4oz.in) 2.8A 2.5V 57x57x56mm 4 Wires (23HS22-2804S) CNC Stepping Motor DIY CNC Mill
-
Manuals and Documentation:
Full Datasheet:
Torque Curver:
- 6% OFF on Total Order Amount!
- Enjoy Discount at Checkout!
- Valid Till June 30th, 2026
- Note:No coupon code needed, please place order directly!
Nema 23 CNC Stepper Motor 2.8A 178.5oz.in/1.26Nm CNC Stepping Motor DIY CNC Mill (23hs22-2804s)
It with step angle 1.8deg and size 57x57x56mm. It has 4 wires, each phase draws 2.8A, with holding torque 1.26Nm (178.4oz.in).
Electrical Specification
Manufacturer Part Number: 23HS22-2804S
Motor Type: Bipolar Stepper
Step Angle: 1.8 deg
Holding Torque: 1.26Nm(178.4oz.in)
Rated Current/phase: 2.8A
Voltage: 2.5V
Phase Resistance: 0.9ohms
Inductance: 2.5mH ± 20%(1KHz)
Physical Specification
Frame Size: 57 x 57mm
Body Length: 56mm
Shaft Diameter: Φ6.35mm
Shaft Length: 21mm
Number of Leads: 4
Lead Length: 300mm
Weight: 700g
Connection
| A+ | A- | B+ | B- |
| Black | Green | Red | Blue |







| Electrical Specification | |
|---|---|
| Bipolar/Unipolar | Bipolar |
| Holding Torque (Ncm) | 126 |
| Holding Torque (oz.in) | 178.4 |
| Inductance(mH) | 2.5 |
| Phase Resistance(ohm) | 0.9 |
| Rated Current (A) | 2.8 |
| Step Angle(°) | 1.8 |
| Physical Specification | |
| Body Length(mm) | 56 |
| Frame Size(mm) | 57x57 |
| Single Shaft/Dual Shaft | Single Shaft |
| Shaft Type | D-Cut |
| Shaft Diameter(mm) | 6.35 |
| Shaft Length(mm) | 21 |
| No. of Lead | 4 |
| Lead Length(mm) | 500 |
| Weight(g) | 700 |
- Connectors: Molex, Harwin, Tyco/AMP, JST etc.
- Lead wires & cables: Special lengths, Protective hose
- Shaft: Round, D-Cut, Cross drilled, Key-Way, Thread or Hollow
- Winding: Resistance, Inductance, Rated Current, etc.
Mr.Jackson – 19 Jun 2024

This is my first time using a motor in a project. It has been a learning experience, but so far this motor has worked well in my testing.
nick.tracy1980 – 12 Dec 2019

The motor has a good torque if provided with appropriate power. (rating changed to 5 stars)
OLD COMMENT :Torque at 12V is not impressive. (I think its < 1 N/m because it barely performs better than a nema 17 rated at 0.42 N/m)
EDIT: the driver I use (A4988) has a voltage regulator with a screw allowing to increase the voltage. Doing so increased the torque significantly (and the heat production on the driver).
So overall my previous comment on torque does not stand, since this was a matter of power supply/driver.






