0.5 N·m closed loop Stepper Motor (42mm) with Encoder

A Light-Duty 42 mm closed loop Axis

The iHSS42-24-05 is a 0.5 N·m closed loop Stepper Motor and the slimmest variant in this closed loop grouping, with a 42 mm frame and 48 mm stack length. Driver and motor share the same housing, and a 1000P/R incremental encoder provides continuous position feedback. For lightly loaded axes the closed loop architecture removes the margin that open-loop drives must leave for missed steps, so the motor can be run closer to its rated capability.

Torque, Current and Dynamics

This unit delivers 0.5 N·m holding torque on a 1.5 A phase current. At these low currents the integrated drive keeps copper losses modest, and the encoder-driven commutation reduces the low-speed torque ripple and vibration that are common in small open-loop steppers. Acceleration is brisk for a mechanism of its size because the rotor inertia is low. Operators should treat the 0.5 N·m figure as the holding capability; running torque available at speed will be lower and should be confirmed against the application’s duty cycle.

Where It Is Used

• Robotics auxiliary and orientation axes
• Packaging machinery light indexing
• Sensor-driven transfers in factory automation
• CNC machine tool peripheral motion
• 3D printer and laboratory positioning stages
• Laboratory sample handling and small medical mechanisms

Specifications

• Frame size: 42 mm
• Length: 48 mm
• Holding torque: 0.5 N·m
• Rated current: 1.5 A
• Feedback: 1000P/R incremental encoder
• Characteristics: low heat generation, low vibration, fast acceleration

Selection Considerations

The iHSS42-24-05 suits compact axes where wiring a separate drive is impractical and where closed loop assurance of position is worth more than the last few percent of torque. Confirm the 42 mm flange and 48 mm length fit the assembly, and verify the 1.5 A feed in the supply budget. Check that the load inertia is matched to the rotor so acceleration stays within the torque envelope at the intended speed. Lyenwsin stocks this model and can help confirm the load profile and drive settings for your machine.