39J1834-406 0.22 N·m NEMA16 Stepper Motor - 34 mm

The 39J1834-406 is a 0.22 N·m NEMA16 Stepper Motor in a compact 34 mm frame, delivering 0.22 N·m of holding torque at 0.6 A per phase through a 5 mm shaft. It is a gentle, precise actuator designed for laboratory micro-positioning where the load is light but the control must be exact.

Controlled Force for Delicate Tasks

The 0.22 N·m rating is sized for sample stages, filter wheels, and small optical assemblies rather than heavy machinery. The motor’s smooth, low-vibration stepping protects sensitive payloads during movement, which is essential when a sample tray or measurement cell must arrive at position without being jarred.

Data

• Frame: NEMA16 (39 mm)
• Body length: 34 mm
• Phase current: 0.6 A
• Holding torque: 0.22 N·m
• Shaft: 5 mm
• Type: 2-phase, open-loop

Analytical and Laboratory Scenarios

Analytical instruments such as autosamplers and spectrometric stages depend on repeatable sample positioning. This motor advances a sample tray or turret by precise angular increments without disturbing the measurement cell. Laboratory micro-positioning, optical filter wheels, and small 3D-printer sub-axes use the same low-vibration behavior, and inspection equipment benefits when a small camera or probe must step along a rail in fine increments.

Selection and Operating Notes

At 0.22 N·m the motor is a micro-positioning actuator, so size it only for light carriages and low-friction slides. Drive it at the rated 0.6 A and select microstepping for smooth low-speed motion, where step resolution matters more than peak torque. Low current keeps heating minimal, protecting temperature-sensitive optical and analytical components during long measurement cycles. The 5 mm shaft and NEMA16 pattern allow direct mounting into compact mechanisms with standard couplings. One practical detail is mounting: because the frame is light, it can be fixed with smaller brackets than a NEMA17, which helps when several axes share a compact chassis, and the 5 mm shaft matches standard miniature couplings so most builds can reuse existing hardware.