34 Stepper Motor – 1.8° Step Angle, 86mm Frame, 450oz_in Torque, 4.2A Rated Current

Overview:
The 34HB31-4204D is a high-performance stepper motor engineered for precision applications demanding reliable torque in a compact form factor. With an 86×86×78mm frame and 1.8° step angle, it delivers 450oz-in holding torque while operating efficiently at 4.2A rated current. Featuring 0.45Ω phase resistance and 4mH inductance, the motor ensures stable operation across diverse industrial environments. Its key-way shaft (14mm/12.7mm diameter, 35mm length) and 4-lead wire configuration simplify integration with standard stepper drivers.

Key Features:
1.8° Step Angle: Enables precise positioning (200 steps/rev)
450oz-in Holding Torque: Ideal for light to medium-duty CNC, 3D printing, and automation
4.2A Rated Current: Optimized for energy-efficient continuous operation
86mm Frame Size: Compact 86×86×78mm design for space-constrained installations
Dual Shaft Diameters: 14mm & 12.7mm with 35mm length (key-way design)
4-Lead Wire Configuration: Simplifies 2-phase driver connections
Electrical Specs: 0.45Ω phase resistance, 4mH inductance

Applications:
Perfect for desktop CNC routers, 3D printers, laser cutters, automated dispensers, and robotics requiring precise motion control. Suited for applications prioritizing torque density and energy efficiency.

Mechanical Specifications:
Frame Size: 86×86×78mm
Shaft Type: Key-way
Shaft Dimensions:
Diameter: 14mm & 12.7mm
Length: 35mm
Torque: 450oz-in (holding)

Electrical Specifications:
Rated Current: 4.2A per phase
Phase Resistance: 0.45Ω
Inductance: 4mH
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, corrosive gases