| Model | Step Angle 2 Phase Excitation | Number of phase | Supply Voltage(DCV) | Winding Resistance(at 20℃)Ω±10% | Rate Current | Holding Torque(mN.m) | Detent Torque mN.m | Rotor Inertia g.cm2 | Insulation Class | High(mm) |
| 20BY45 | 18°±7% | 4 | 5 | 10 | 0.5 | 7.65 | 2.5 | 0.4 | E | 18 |
φ86 mm round size, Nema 34 standard, 1.8° step angle, up to 800 Ncm holding torque, customizable
80*80 mm squared size, 300~1200 W, 1000~3000 rpm, up to 12 Nm, customizable
42*42 mm squared size, 8~160 W, 1000~8000 rpm, up to 800 mNm, servo option, customizable
φ57 mm round size, Nema 23 standard, 0.9° or 1.8° step angle, up to 160 Ncm holding torque, customizable
