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90mm 1.8 Degree 3Nm Explosion Proof Stepper Motor

Holding Torque: 3Nm to 9.2Nm

Rated current: 6A

Phase resistance: 0.3Ω to 0.6Ω

Phase inductance: 2.4mH to 6.4mH

Step angle: 1.8°

Rotor inertia: 1300kg.cm² to 3900kg.cm²

Explosion-proof motors are crucial in underground coal mines due to the presence of potentially explosive gases such as methane. These motors can mitigate the risk of igniting potentially explosive gases or dust in the mine atmosphere.


Model No.Holding Torque (N.m)Rated Current (A)Phase Resistance (Ω)Phase Inductance (mH)Step Angle (°)Rotor inertia (kg.cm²)

Explosion Proof Grade: EX db IIB T4/EX db IIC T5

Selectable Voltage:24V、48V、72V、220V、380V


What are the applications of explosion-proof stepper motors?

Wastewater Treatment: Wastewater treatment plants often deal with gases emitted during treatment. Explosion-proof stepper motors can be employed in equipment like pumps, agitators, and aerators.

Chemical Industry: Explosion-proof stepper motors are commonly used in chemical plants with a risk of flammable gases or vapors. They can be employed in mixing, pumping, and material handling.

Oil and Gas: In oil refineries, drilling rigs, and natural gas processing plants, where there’s a high potential for explosive atmospheres, these motors find applications in valve control, conveyor systems, and other equipment.

Mining: Mines often contain combustible gases or dust particles, making explosion-proof stepper motors essential for conveyor belt operation, ventilation control, and equipment positioning.

Food Processing: Certain areas of food processing plants may have combustible dust or gases present. Explosion-proof stepper motors can be utilized in conveyors, packaging equipment, and automated processing lines.


What are the advantages of explosion-proof stepper motors compared to explosion-proof servo motors?

Simplicity: Stepper motors operate in an open-loop system, eliminating the need for feedback devices and simplifying control systems, which can reduce overall system cost and complexity.

Positional Accuracy: Stepper motors exhibit good positional accuracy, especially at low speeds, making them suitable for applications like positioning and indexing without feedback mechanisms.

Low Cost: Stepper motors are often more cost-effective servo motors, particularly for applications where high precision and dynamic performance are not critical requirements.

Stall Detection: Stepper motors can easily detect when they are stalled or encountering an obstruction, which can be applications where safety is a concern.Self-Braking: Stepper motors exhibit holding torque when stationary, eliminating the need for additional braking mechanisms in certain applications.

Simplified Control: Stepper motors are easier to control, typically requiring only a pulse train to command steps, making them suitable for simple open-loop control systems.

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