0.5 N·m Compact Integrated Stepper Motor, 42 mm Frame

What the iESSC42-24-05 Is

The iESSC42-24-05 is a 0.5 N·m Compact Integrated Stepper Motor built on a 42 mm frame with a body length of only 48 mm. Motor, driver and position feedback are combined in one housing, so the unit bolts directly onto a small machine without a separate drive cabinet. For engineers working with limited panel space, this single-package layout removes one wiring harness, one mounting step and one potential fault point from the build.

Control and Feedback

Position feedback comes from a 1000 P/R incremental encoder. The internal closed loop compares the commanded position with the actual rotor angle and applies real-time correction, which keeps motion smooth during low-speed positioning and prevents step loss when a light variable load appears mid-move. The result is the positioning discipline of a closed loop system without the added cost of a full servo amplifier, which is why distributors often recommend it for compact precision axes.

Key Specifications

• Frame size: 42 mm
• Body length: 48 mm
• Holding torque: 0.5 N·m
• Rated current: 1.5 A
• Feedback: 1000 P/R incremental encoder

Thermal and Torque Behavior

Rated at 0.5 N·m holding torque and 1.5 A, this model is engineered for light-duty positioning work. Heat generation stays low, so the motor can operate inside confined enclosures without a dedicated cooling airflow budget. The low-vibration characteristic also keeps sensitive mechanisms steady during short, repeated moves, a useful property when a microscope stage or a dispensing head rides on the axis.

Applications

Because of its compact size and clean feedback, the unit fits laboratory automation, medical devices, 3D printing and small assembly cells. It is also applied in light factory automation, packaging indexing and robotic auxiliary axes where a very compact integrated stepper with encoder feedback is required.

Selection Considerations

Confirm that the 42 mm frame and 48 mm length fit the axis assembly, and size the 1.5 A feed correctly in the power supply. Treat the 0.5 N·m figure as the holding capability; running torque at speed is lower and should be checked against the duty cycle. For inertia-matched short strokes, the integrated loop delivers the best repeatability. Lyenwsin stocks this model and can supply wiring and sizing guidance for your project.