Micro 4-Axis Robot Arm ±0.1mm Precision Compact A5 Size for Education & Industry 2026
The Miniature 4-Axis Desktop Robotic Arm offers precise automation for small-scale tasks, ideal for educational purposes, DIY projects, and precision assembly. With its compact size and four degrees of freedom, it delivers high accuracy in a variety of applications, including STEM learning, prototyping, and light-duty automation. Its versatile design makes it the perfect tool for hobbyists, students, and engineers seeking a reliable, affordable robotic arm for precision work and hands-on learning.
4-Axis Desktop Robot Arm: Compact, Precise, Versatile Automation for Education, Industry & Makers (2026)
⚙️ Core Features: Power Packed in a Small Footprint
Ultra-Compact Design
Our 4-axis desktop robot arm occupies A5 paper-sized space (smaller than most laptops!) with a working radius of 300–340mm — ideal for benchtop deployment without sacrificing workspace. The all-in-one, fully enclosed structure ensures safety while maintaining a sleek, modern aesthetic that complements any environment.
- 🛒 Why Choose Our 4-Axis Desktop Robot Arm?
- ✅ Precision Performance: ±0.1mm repeatability for micro-manipulation
✅ Unlimited Versatility: Modular end-effectors for endless applications
✅ User-Friendly: Open-source software + drag-and-drop programming
✅ Safe Collaboration: Enclosed structure, collision detection
✅ Cost-Effective: Industrial power at consumer-friendly prices
✅ Future-Ready: AI, machine vision, and ecosystem compatibility built-in
Modular End-Effector Ecosystem
Transform your robot in seconds with our standardized quick-connect interface (disc-style rotary switch). Swap between:
- Electric grippers (for object manipulation)
- Vacuum suction cups (for flat/irregular items)
- Laser engraving heads (for precision marking)
- 3D printing nozzles (for additive manufacturing)
- Custom tools (via open interface)
Maximize ROI by adapting to diverse tasks without investing in multiple machines.
Open-Source & User-Friendly
Compatible with ROS, ROS2, Python, C++, and Arduino — plus intuitive graphical programming tools like Dobot Blockly, myBlockly, and Luban. Drag-and-drop coding makes it accessible to students and beginners, while advanced APIs empower developers to create custom applications. Perfect for both education and professional use.
Safety First: Collaborative Design
Engineered with full-enclosure construction and finger-safe components to minimize pinch points and foreign object intrusion risks. The robot stops immediately upon contact, ensuring safe human-robot collaboration in shared workspaces — no safety barriers required.
🚀 Applications: From Classroom to Factory Floor
- Teach robotics, programming, and automation principles with hands-on projects
- Compete in robotics challenges with pre-built templates and G-code compatibility
- Create stunning art, write calligraphy, or build custom projects with ease
- Ideal for K-12 STEM programs, university labs, and maker spaces worldwide
Light Industrial Automation
Automate repetitive tasks with 0.5–2kg payload capacity:
- Pick-and-place for small components (electronics, pharmaceuticals, cosmetics)
- Assembly of precision parts (PCBs, toys, medical devices)
- Screwdriving and dispensing (adhesives, sealants)
- Soldering and inspection (quality control for small batches)
Reduce labor costs by 50–70% and achieve ROI in as little as 6 months.
Personalized Manufacturing
Unleash your creativity with:
- Laser engraving on wood, leather, acrylic, and metal (0.1mm precision)
- 3D printing with dual-color capability and grayscale pattern reproduction
- Custom signage and prototyping for product development
- Craft production (jewelry making, leatherworking, woodworking)
Perfect for small businesses and artisans looking to scale without losing customization.
Research & Development
A versatile platform for innovation:
- Integrate sensors (e.g., MAX30102 for physiological monitoring) for medical device testing
- Combine with machine vision for autonomous object recognition and sorting
- Test AI path planning algorithms (like TSP optimization) for efficient trajectory generation
- Develop cutting-edge automation solutions for healthcare, agriculture, and beyond

| Model |
MG400 |
|---|---|
| Number of Robot Arms |
4 |
| Maximum Load |
750g |
| Maximum Reach |
440mm |
| Repeated Accuracy |
±0.05 mm |
| Power Supply |
100~240 VAC, 50/60 Hz |
| Rated Voltage |
48 V |
| Rated Power |
240 W |
| Communication Protocols |
TCP/IP, Modbus TCP |
| Robot Weight |
8 kg |
| Base Dimensions |
190 mm × 190 mm |
