NEMA34

							Type				Hybrid Stepper Motor					Excitation Sequence
							Flange Size				86mm Square
							Phases				2
							Step Accuracy				±5%						STEP	A+	B+	A-	B-
							Radial Force				220N(50Lbs.) 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.)		(kg)
TH8668HS-30004			1.8		68		3.00		1.20		6.8		3.30		5.5		1000.0		4		2.00
TH8668HS-42006			1.8		68		4.20		0.60		1.6		3.30		5.5		1000.0		6		2.00
TH8668HS-60004			1.8		68		6.00		0.30		1.7		3.30		5.5		1000.0		4		2.00
TH8678HS-20008			1.8		78		2.00		2.20		10.0		4.00		6.5		1400.0		8		2.50
TH8678HS-42008			1.8		78		4.20		0.70		2.8		4.00		6.5		1400.0		8		2.50
TH8678HS-60004			1.8		78		6.00		0.35		2.8		4.00		6.5		1400.0		4		2.50
TH8698HS-42008			1.8		98		4.20		0.80		4.2		6.20		9.5		2000.0		8		3.00
TH8698HS-60004			1.8		98		6.00		0.40		4.2		6.20		9.5		2000.0		4		3.00
TH86114HS-42008			1.8		114		4.20		1.10		5.8		8.00		12.5		2700.0		8		3.70
TH86114HS-60004			1.8		114		6.00		0.60		5.8		8.00		12.5		2700.0		4		3.70
TH86126HS-42008			1.8		126		4.20		1.20		6.2		10.50		18.5		3300.0		8		4.20
TH86126HS-60004			1.8		126		6.00		0.60		6.2		10.50		18.5		3300.0		4		4.20
TH86150HS-42008			1.8		150		4.20		1.50		8.6		12.00		24.5		4000.0		8		5.00
TH86150HS-60004			1.8		150		6.00		0.75		8.6		12.00		24.5		4000.0		4		5.00
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

Ultra-High Torque Industrial Stepper Motor | Nema34 | Heavy-Duty Precision Motion Control

Features

1. 86mm frame size, designed for the most demanding industrial applications

2. Holding torque range: 4.5–12Nm, step angle 1.8°

3. Extremely high torque density with reinforced bearings and housing

4. Available in 2-phase, 3-phase, closed-loop, and integrated driver versions

Description

Nema34 stepper motor is the largest in the standard Nema series, featuring an 86mm square flange and delivering massive holding torque from 4.5Nm up to 12Nm. The two-phase hybrid design provides reliable open-loop control, while 3-phase versions offer smoother motion and lower vibration at high speeds. The motor is built with oversized bearings, reinforced housings, and high-temperature magnet wire for continuous duty in harsh industrial environments. Step angle is 1.8° (0.9° available for high-precision versions). We provide optional motors with IP65 protection, integrated 1000-line encoders for closed-loop control, fail-safe electromagnetic brakes, and high-ratio planetary gearboxes for extreme torque multiplication.

Wide range of Nema34 configurations:

Frame size 86mm, step angle 1.8° or 0.9°, holding torque 4.5–12Nm, rated current 4.0–8.0A, IP20–IP65, brake, encoder, and gearbox options.

Applications

- Large CNC machining centers

- Industrial robotics and automation lines

- Heavy-duty packaging machinery

- Metal cutting and forming equipment

- Large-format laser cutters and plasma tables

- Wind turbine pitch control

- Oil and gas valve actuators

- Stage and theatrical automation

Advantages of Nema34 Stepper Motor

1. Ultra-high torque: Up to 12Nm for the most demanding loads.

2. Industrial ruggedness: Reinforced bearings, high-grade insulation, and thermal protection.

3. Closed-loop precision: Encoder feedback eliminates missed steps.

4. Fail-safe brake option: Electromagnetic brake holds position during power loss.

5. Extreme torque multiplication: Compatible with high-ratio planetary gearboxes.