130J12205EC-17BC 28 Nm 3-Phase Stepper Motor - NEMA 52

The 130J12205EC-17BC is a 28 Nm 3-Phase Stepper Motor with closed loop control, offering 28 N·m holding torque from a 205 mm NEMA 52 body, drawing 6.8 A per phase on a 24 mm shaft. It shares the heavy-duty frame with the 35 N·m unit but uses a shorter stack, trading a little torque for lower inertia and a shorter envelope.

closed loop Performance With a 17-Bit Encoder

The 3-phase winding with integrated 17-bit encoder provides smooth torque and high-resolution position feedback. The drive continuously compares the commanded position with the encoder reading and corrects any step error in real time. For heavy-load automation, this removes the risk of silently lost steps during acceleration or load spikes.

Torque Curve and Duty Cycle

Holding torque is rated at standstill. Running torque falls with speed as current build-up in the 6.8 A winding lags the electrical cycle. closed loop current management keeps the motor cooler during long dwells, and the 24 mm shaft provides a stiff connection to gearboxes or direct couplings.

Key Specifications

• Frame size: NEMA 52
• Body length: 205 mm
• Phase count: 3-phase
• Phase current: 6.8 A
• Holding torque: 28 N·m
• Shaft diameter: 24 mm
• Feedback: integrated 17-bit encoder

Applications

Applications include CNC machine tools, packaging machinery, factory automation, precision robotic mechanisms, textile and printing machinery, food processing, and automated handling mechanisms. The 28 N·m rating covers large rotary tables, heavy conveyor indexing, and multi-axis machines where load changes are frequent.

Selection Considerations

Confirm the drive supports 3-phase closed loop control with 17-bit feedback and 6.8 A per phase. Because the stack is shorter than the 225 mm variant, this motor fits machines with tighter length constraints while still delivering near-maximum NEMA 52 torque. Verify the dynamic torque at your cycle speed and size the coupling for the 24 mm shaft. Because three-phase drives are less common than two-phase units, confirm availability and lead time with your supplier during the design phase.