23 Stepper Motor – 1.8° Step Angle, 57mm Frame, 250oz_in Torque, 3A Rated Current

Overview:
The 23HB39-3004D is a high-torque stepper motor designed for precision motion control in medium-duty industrial applications. With a 57×57×100mm frame and 1.8° step angle, it delivers 250oz-in holding torque at 3A rated current, balancing power output with energy efficiency. Featuring 1.4Ω phase resistance and 5.5mH inductance, the motor ensures stable operation. Its D-cut shaft (8mm/6.35mm diameter, 21mm length) and 4-lead wire configuration enable secure mechanical coupling and simplified electrical integration.

Key Features:
1.8° Step Angle: Enables precise positioning (200 steps/rev).
250oz-in Holding Torque: Suited for 3D printers, CNC routers, and automation systems requiring moderate load capacity.
3A Rated Current: Optimized for continuous operation with low heat generation.
57mm Frame Size: Compact 57×57×100mm design for space-constrained setups.
D-cut Shaft: 8mm & 6.35mm diameter with 21mm length for secure pulley/belt attachment.
4-Lead Wire Configuration: Simplifies connection to standard 2-phase drivers.
Electrical Specs: 1.4Ω phase resistance, 5.5mH inductance for stable power conversion.

Applications:
Perfect for desktop CNC machines, laser engravers, automated packaging equipment, educational robotics, and small-scale manufacturing systems. Ideal for scenarios requiring reliable torque in confined spaces, such as DIY projects, laboratory instruments, or light industrial automation.

Mechanical Specifications:
Frame Size: 57×57×100mm
Shaft Type: D-cut
Shaft Dimensions:
Diameter: 8mm & 6.35mm
Length: 21mm
Torque: 250oz-in (holding torque)

Electrical Specifications:
Rated Current: 3A per phase
Phase Resistance: 1.4Ω
Inductance: 5.5mH
Step Angle: 1.8° (200 steps/rev)
Wire Configuration: 4-lead (2-phase)

Environmental Specs:
Operating Temperature: 0°C – 50°C
Humidity: 40–90% RH (non-condensing)
Avoid: Dust, oil, moisture, and corrosive gases.