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: 500VAC for one minute
- Rotation: CCW
- Insulation Class: B(130℃)
Defination of Part number
42 | HSL | 20 | D | F | 38 | TRX |
Frame size | Liner hybrid stepper motor | Length | Step angle* | Lead wire** | Winding Type | Screw Type |
*: 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) | Current (A) | Resistance (Ω) | Inductance (mH) | Holding Torque (N.m) | Rotor Inertia (g.cm²) | Lead wires/pins | Weight (g) |
| 42HSL20DF38 | 20 | 0.8 | 3.8 | 4.5 | 0.10 | 24 | 4 | 120 |
| 42HSL28DF8 | 28 | 0.6 | 8 | 10 | 0.12 | 30 | 4 | 150 |
| 42HSL34DF2 | 34 | 1.7 | 2 | 2.8 | 0.25 | 34 | 4 | 220 |
| 42HSL40DF22 | 40 | 1.7 | 2.2 | 3.8 | 0.35 | 54 | 4 | 280 |
| 42HSL48DF31 | 48 | 1.7 | 3.1 | 5 | 0.50 | 68 | 4 | 350 |
| 42HSL60DF21 | 60 | 1.7 | 2.1 | 6.2 | 0.75 | 80 | 4 | 480 |
| Screw Diameter(mm) | Lead(mm) | Step Length(mm) | L2 |
| Tr6.35 | 3.175 | 0.015875 | Customizable |
| Tr6.35 | 2 | 0.01 | Customizable |
| Tr6.5 | 1 | 0.005 | Customizable |
| Tr8 | 2 | 0.01 | Customizable |
| Tr8 | 4 | 0.02 | Customizable |
| Tr8 | 8 | 0.04 | Customizable |
In-Depth Applications for the NEMA 17 Linear Stepper Motor
The 42HSL Series is the common used linear type of the motion control industry. Its balance of size and power makes this NEMA 17 linear stepper motor the preferred choice for a vast array of equipment:
- 3D Printers: The most common application. It serves as the Z-axis drive, where the NEMA 17 linear stepper motor provides the stability and layer-height precision required for high-quality prints.
- Desktop CNC Machines: Provides reliable linear motion for X and Y axes in light-duty milling and engraving machines.
- Precision XY Tables: Drives laboratory translation stages and automated inspection equipment that demand high repeatability.
- Medical Equipment: Used in larger medical pumps and automated pharmacy dispensing systems where higher push force is needed compared to smaller NEMA 11 motors.
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 makes the NEMA 17 linear stepper motor so popular?
A: The NEMA 17 linear stepper motor offers the best price-to-performance ratio in the market. It provides enough torque for most desktop automation tasks while remaining compact and cost-effective.
Q: What screw diameters are available for the 42HSL?
A: We offer a wide range of screw options for this NEMA 17 linear stepper motor, including Tr6.35, Tr6.5, and the robust Tr8 screws, which are standard for heavy-duty lifting applications.
Q: Can this motor handle vertical loads?
A: Yes. The 42HSL series is excellent for vertical lifting (Z-axis). However, it is important to choose the right lead (pitch) for your NEMA 17 linear stepper motor. A smaller lead provides a self-locking effect, preventing the load from dropping when power is off.
Q: How do I choose the right current setting?
A: The 42HSL series typically operates around 1.7A (depending on the model). You should set your driver current to match the rated phase current of the NEMA 17 linear stepper motor to ensure optimal torque without overheating.