Mini Stepper Motor Linear Actuator DC 3V Screw Slide for CNC
Mini Stepper Motor Linear Actuator DC 3V Screw Slide for CNC
Mini Stepper Motor Linear Actuator – High-Precision Screw Slide for CNC & Robotics
Take your small-scale automation projects to the next level with this compact Mini Stepper Motor Linear Actuator. Running on just 3V DC, this precision-engineered push rod and screw slide assembly delivers smooth, repeatable linear motion — ideal for hobbyist CNC machines, robotics, camera sliders, lab equipment, and DIY automation rigs.
Key Specifications
- Working Voltage: 3V DC
- Motor Type: 2-phase, 4-wire stepper motor
- Integrated: Planetary gear reducer for increased torque and precision
- Bearings: Precision ball bearings on the screw rod tip for smooth travel
- Maximum Slide Displacement: 12 mm
- Available Sizes: 34×5 mm and 34×4.5 mm (choose the style that suits your build)
- Items per Pack: 1
- Certification: ISO
- EU LVD Compliance: Low voltage — below 50 V AC or 75 V DC
Why Choose This Linear Actuator?
- ✅ Ultra-compact form factor — fits into tight spaces where full-size actuators simply can't
- ✅ Integrated planetary gear reducer — delivers higher torque output without sacrificing precision
- ✅ Precision ball bearings — ensure consistent, low-friction linear travel every time
- ✅ Two size options — select the exact dimensions your project demands
- ✅ Straightforward wiring — standard 4-wire stepper interface works with common drivers and microcontrollers
- ✅ Versatile application — CNC machines, 3D printers, camera sliders, optical equipment, lab automation, and more
Applications
This miniature linear actuator is well-suited for a wide range of precision motion projects, including:
- Small CNC routing and engraving machines
- DIY 3D printer axes and extruder mechanisms
- Camera focus and slide systems
- Micro-robotics and servo-controlled assemblies
- Laboratory positioning and optical alignment equipment
- Educational electronics and engineering project kits
Important Notes
- A measurement tolerance of ±1–3 mm is possible. Please confirm this is acceptable before purchasing.
- Due to monitor/display differences, the actual product color may vary slightly from product images.
Made in Mainland China.
For guidance on safe use of low-voltage electronic components, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What microcontroller or driver is compatible with this mini stepper motor linear actuator?
A: This 2-phase, 4-wire stepper motor is compatible with most standard stepper motor drivers such as the A4988, DRV8825, or ULN2003. It can be driven by popular microcontrollers including Arduino, ESP32, and Raspberry Pi with the appropriate driver board, making it an ideal choice for DIY CNC and robotics projects.
Q: What is the maximum linear travel (stroke) of this screw slide actuator?
A: The slide table offers a maximum displacement of 12 mm. This compact stroke range is well-suited for fine positioning tasks in small CNC machines, optical equipment, and precision automation applications.
Q: Which size variant should I choose — 34×5 mm or 34×4.5 mm?
A: Both variants share the same 34 mm body length. The difference is in the shaft/rod diameter: 5 mm or 4.5 mm. Choose based on the mounting hardware and clearance available in your project. If in doubt, measure your existing mount or consult your machine's specifications before ordering.
Q: Can this linear actuator be used continuously, or is it rated for intermittent use only?
A: This actuator is designed for intermittent positioning use typical of CNC and automation applications. Continuous high-duty-cycle operation at elevated load may cause heat build-up. For best longevity, allow adequate cooling time between extended motion sequences and operate within the 3V DC rated voltage.