Sweg Motor
The CW-57BHH56-301D-21BD is a NEMA 23 (57mm) integrated hybrid stepper motor with a built-in IDH57 driver. Delivering 1.0 N·m holding torque at 3.0 A/phase, the IDH57 driver supports DC 12–50V input and 4-level current settings (2.1–4.4 A peak) via DIP switches. With 200–25600 microstep resolution, it is suitable for CNC routers, laser engravers, and medium-load automation systems.
| PARAMETER | VALUE |
|---|---|
| Frame Size | 57 mm (NEMA 23) |
| Body Length | 56 mm Max |
| Step Angle | 1.8° ± 5% |
| Holding Torque | 1.0 N·m (100 N·cm) |
| Rated Current | 3.0 A/Phase |
| Driver Input Voltage | DC 12–50V |
| Integrated Driver | IDH57 |
| Number of Phases | 2 |
| Rated Voltage | 1.8 VDC |
| Phase Resistance (20°C) | 0.6 Ω ± 10% |
| Phase Inductance (1kHz) | 1.8 mH ± 20% |
| Insulation Resistance | 100 MΩ min (500 VDC) |
| Insulation Class | Class B (130°C) |
| Ambient Temperature | -20°C to +50°C |
| Motor Weight | Approx. 0.62 kg |
| Shaft Diameter | φ8 mm |
| Wire Lead | 4-wire, 55 mm length, 5 mm tinned |
| Wire Spec | 22AWG UL1430 |
| Current Setting (Peak/RMS) | 2.1A/1.5A to 4.4A/3.1A |
| Microstep Resolution | 200/400/800/1600/3200/6400/12800/25600 ppr |
We are a specialized OEM manufacturer of motors and motion control solutions, with over 30 years of production experience in the industrial motor field. Serving 1800+ industrial clients worldwide — from North America and Europe to Southeast Asia and beyond.
Our core strength is OEM customization: we work directly with equipment manufacturers, system integrators, and automation engineers to design and produce motors that match exact application requirements — from shaft dimensions and winding specs to encoder type, connector configuration, and branding.
With 30+ years of industrial motor expertise and no minimum order quantity, we are equally equipped to support single-unit prototypes and high-volume production runs.