NEMA8

							Type				Hybrid Stepper Motor					Excitation Sequence
							Flange Size				20mm Square
							Phases				2
							Step Accuracy				±5%						STEP	A+	B+	A-	B-
							Radial Force				18N(4Lbs.) at end shaft
							IP Rating				IP40						1	+	+	-	-
							Operating Temp				-20℃ to +50℃						2	-	+	+	-
							Insulation Class				B, 130℃						3	-	-	+	+
							Insulation Resistance				100 MΩ					CW	4	+	-	-	+	CCW
Dimensions(mm)
Technical Data
Model			Step Angle		Motor Length		Current		Resistance		Inductance		Holding Torque		Detent Torque		Inertia		Wires		Weight
			(° )		L(mm)		(A)		(Ω)		(mH)		(N.m)		(N.cm)		(g.cm²)		(No.)		(g)
TH2028HS-2004			1.8		28		0.2		24.0		8.2		0.014		0.2		2.5		4		50
TH2034HS-2004			1.8		34		0.2		25.0		8.4		0.018		0.3		3.2		4		70
TH2034HS-6004			1.8		34		0.6		6.5		1.7		0.018		0.3		3.2		4		70
TH2040HS-6004			1.8		40		0.6		5.8		1.6		0.024		0.5		4.5		4		80
Torque Unit Conversion: 1N.m≈10.2kgf.cm≈141.6oz.in≈8.85lb.in
If you need other parameters, please contact customer service.
Motor Driver Connections

Compact Precision Stepper Motor | Nema8 | Low Vibration & High Positioning Accuracy

Features

1. 20mm frame size, ideal for ultra-compact space installations

2. Holding torque up to 0.12Nm, step angle 1.8°

3. Low vibration and low heat generation, suitable for precision optics and medical devices

4. Single shaft or dual shaft options available, support custom wiring and connectors

Description

Nema8 stepper motor is a small two-phase hybrid stepper motor. The stator uses high magnetic flux density silicon steel sheets, and the rotor is equipped with high-performance neodymium magnets to achieve high positioning accuracy in a small volume. Step angle is 1.8°, 200 steps per revolution. Micro-stepping driving allows for smoother movement and higher resolution. We provide optional gearboxes (planetary or spur), encoders, and lead screws to match different application requirements.

Wide range of Nema8 configurations:

Frame size 20mm, step angle 1.8°, holding torque 0.03–0.12Nm, rated current 0.4–1.0A, customized shaft length and winding available.

Applications

- Optical focusing systems

- Medical micro-pumps

- Laboratory automation

- CCTV cameras

- Small 3D printers

- Pick-and-place devices

Advantages of Nema8 Stepper Motor

1. Space-saving design: 20mm ultra-compact size fits tight spaces without sacrificing performance.

2. Precise positioning: 1.8° step angle with micro-stepping support for smooth and accurate motion.

3. Low temperature rise: Optimized magnetic circuit design reduces heat generation.

4. Reliable and durable: High-quality bearings and insulation materials ensure long service life.