NEMA11 1.8°
The 28HS2A nema11 Stepper motor has high positioning precision with high power at low speeds, as well as high stall torque and the possibility to work in microsteps. This stepper motor can provide direct and precise motions in a 28 mm square design. Permanent magnet and hybrid technologies are used to provide a full range of solutions.
Motor Highlights
- Step angle 1.8°
- 2 phases nema11 Stepper motor
- Holding torque up to 100 mNm
- Frame Size: 28mm (NEMA 11)
- Holding Torque: Up to 118mNm
- Rated Current: 0.85A
- Phase Resistance: 8.2Ω
- Phase Inductance: 7.3mH
- Temperature Range: -20°C to +50°C
Control Precision
- Step Angle Precision: The 1.8° step angle ensures precise control over positioning and motion, making it ideal for applications requiring high accuracy .
- Encoder Options: Some models offer integrated optical encoders for enhanced precision and control .
Environmental Adaptability
- Wide Temperature Range: The nema11 stepper motor can operate in a broad temperature range, from -20°C to +50°C, making it suitable for various environmental conditions.
- Durability: Constructed with high-quality materials, these motors are designed to withstand harsh industrial environments .
Application Compatibility
- Versatile Applications: The NEMA11 Stepper Motor 28HS series is suitable for a wide range of applications, including CNC machines, 3D printers, medical equipment, robotics, and scientific instruments .
- Compact Design: The small size of the motor makes it ideal for space-constrained environments .
Customization Capabilities
- Custom Options: The series offers customization options such as different winding configurations, multiple mounting flange choices, diverse output shaft configurations, and extended torque ranges .
- Special Requirements: nema11 stepper motors can be customized for special requirements such as radiation resistance, anti-mold, impact resistance, and shaft output .
Specifications of Series 28HS nema11 Stepper motor
Model | Holding Torque (N·cm±10%) | Current/Phase (A) | Resistance/Phase (ohms±10%) | Inductance/Phase (mH±20%) | Detent Torque (N.cm)
| Rotor Inertia (g-cm2) | Length (mm) | Weight (g) |
28HS2A28-064 | 4.5 | 0.6 | 4.2 | 2.2 | 0.3 | 6 | 28 | 105 |
28HS2A28-044 | 4.5 | 0.35 | 12 | 5.8 | 0.3 | 6 | 28 | 105 |
28HS2A33-064 | 6.0 | 0.6 | 5.5 | 3.2 | 0.4 | 8 | 33 | 110 |
28HS2A33-044 | 6.0 | 0.35 | 15 | 9.2 | 0.4 | 8 | 33 | 110 |
28HS2A41-064 | 6.0 | 0.6 | 7.0 | 6.0 | 0.5 | 11 | 41 | 140 |
28HS2A41-044 | 6.0 | 0.35 | 20 | 15 | 0.5 | 11 | 41 | 140 |
28HS2A50-064 | 10 | 0.6 | 9.0 | 7.2 | 0.8 | 13 | 50 | 180 |
28HS2A50-044 | 10 | 0.35 | 24 | 18.5 | 0.8 | 13 | 50 | 180 |
nema11 stepper motors are available with different winding and mechanical modification to meet specific applications.
nema11 stepper motor Figure


UNI-POLAR(6 LEADS) BI-POLAR(4LEADS)