General Specification
- Step Angle Accuracy: ±5%（full step， no load）
- Resistance Accuracy: ±10%
- Inductance Accuracy: ±20%
- Temperature Rise: 80℃ max （rated current, 2 phase on）
- Ambient Temperature: -20℃~+50℃
- Insulation Resistance: 100MΩ min，500VDC
- Dielectric Strength: 500VDC for one minute
- Shaft Radial Play: 0.02mm max（450g load）
- Shaft Axial Play: 0.08mm max（450g load）
- Max. radial force: 28N(20mm from the flange)
- Max. axial force: 10N
- Rotation: CCW
- Insulation Class: B(130℃)
Defination of Part number
39 | HS | 20 | M | F | 10 | X |
Frame size | Square hybrid stepper motor* | Length | Step angle** | Lead wire*** | Winding Type | External code |
**: This code shows the sharp of the motor. HS = Square hybrid stepper motor; HY = Round hybrid stepper motor.
**: This code shows the stepper angle of the motor. M = 0.9°; D =1.8°.
***: This code shows the lead wire number of the motor, the detail code defination is: F = 4; V = 5; S = 6; E = 8.
Specifications
| Model | Length (mm) | Step angle deg | Resistance (Ω) | Current (A) | Voltage | Holding torque (N.cm) | Lead wires/pins | Rotor inetia （g.cm²） | Weight （kg） |
|---|---|---|---|---|---|---|---|---|---|
| 39HS20MF10 | 20 | 0.9° | 10 | 0.5 | 5 | 8 | 4 | 10 | 0.13 |
| 39HS20MF13 | 20 | 0.9° | 12 | 0.48 | 5.76 | 7 | 4 | 10 | 0.13 |
| 39HS20MS24 | 20 | 0.9° | 24 | 0.5 | 12 | 7.5 | 4 | 10 | 0.13 |
| 39HS22MF3 | 22 | 0.9° | 3 | 1.2 | 3.6 | 8.2 | 4 | 12 | 0.135 |
| 39HS24MF6 | 24 | 0.9° | 6 | 0.67 | 4.02 | 10 | 4 | 13 | 0.14 |
| 39HS24MF01 | 24 | 0.9° | 3.5 | 1 | 3.5 | 12 | 4 | 13 | 0.14 |
| 39HS24MF9 | 24 | 0.9° | 9 | 0.5 | 4.5 | 10 | 4 | 13 | 0.14 |
| 39HS24MF23 | 24 | 0.9° | 23 | 0.48 | 11.04 | 14 | 4 | 13 | 0.14 |
| 39HS26MF202 | 26 | 0.9° | 2.2 | 1 | 2.2 | 12 | 4 | 14 | 0.13 |
| 39HS26MF8 | 26 | 0.9° | 8 | 0.6 | 4.8 | 9 | 4 | 14 | 0.13 |
| 39HS26MF903 | 26 | 0.9° | 8.5 | 0.6 | 5.1 | 8.5 | 4 | 14 | 0.13 |
| 39HS27MF11 | 27 | 0.9° | 11 | 0.5 | 5.5 | 13 | 4 | 14 | 0.13 |
| 39HS33MF05 | 33 | 0.9° | 12 | 0.6 | 7.2 | 20 | 4 | 17 | 0.18 |
| 39HS33MS40 | 33 | 0.9° | 40 | 0.3 | 12 | 12 | 6 | 17 | 0.18 |
| 39HS37MS30 | 37 | 0.9° | 26 | 0.4 | 10.4 | 18 | 6 | 27 | 0.22 |
| 39HS39MF14DL | 39 | 0.9° | 14 | 0.5 | 7 | 20 | 4 | 29 | 0.26 |
In-Depth Applications for the NEMA 16 Hybrid Stepper Motor 0.9°
The 39HSM Series 0.9° step angle provides double the resolution of standard steppers, making it crucial for applications where exceptionally smooth micro-movement is required. Key application areas include:
- Optical & Scientific: Ideal for high-precision lens positioning, microscopic stage control, and scientific scanning devices that require fine angular resolution.
- Fluid Control & Dispensing: Provides smoother, more accurate control for fluid metering and dosing pumps, minimizing pulsation and maximizing dispensing precision.
- 3D Printing & Laser: Used in high-end additive manufacturing and laser engraving equipment where exceptional surface finish depends on fine, smooth axis movements.
Outline
Customization
 |  |  |  | |  |
| Shaft | Encoder | Brake | Connector | Pulley | Gearbox |
| Item | Description |
|---|---|
| Shaft Extensions | Motors can be configured with single or double-ended shafts, manufactured to your specific length. |
| Encoder Options | We offer integration with various encoders to meet specific resolution and application needs. |
| Brake Options | Motors can be equipped with an optional brake, available with or without a manual hand release. |
| Cable Harnesses | Custom cable harnesses, with or without connectors, are available upon request. |
| Pulleys & Pinion Gears | Pulleys or pinion gears can be supplied and mounted to your specifications. |
| Gearbox Integration | Most motors can be paired with various gearbox types, including planetary, worm wheel, and parallel shaft gearboxes. |
Frequently Asked Questions (FAQ)
Q: What is the main benefit of the 0.9° step angle?
A: The 0.9° step angle means this NEMA 16 hybrid stepper motor 0.9° has 400 steps per revolution. This provides double the inherent resolution and significantly smoother low-speed operation compared to the 1.8° model, which is beneficial for optical or scanning systems.
Q: Should I choose the 0.9° model or the 1.8° model?
A: Choose the 0.9° model (39HSM) when **smoothness, high resolution, and low vibration** are primary goals. The 1.8° model (39HSD) offers similar torque but is often selected when maximizing speed or minimizing driver complexity is the priority.
Q: Does this 39mm hybrid stepper motor support customization options?
A: Yes. The 39HSM Series is highly customizable. Options include various shaft extensions, integrated connectors, gearboxes (such as planetary gearboxes), and the addition of a brake or encoder for closed-loop operation.
Q: What is the step angle accuracy of the 39HSM Series?
A: This 39mm hybrid stepper motor 0.9° offers an accurate 0.9° step angle. Utilizing micro-stepping technology with your driver is essential to achieve the full potential of this high-resolution motor.