About the Dobot MG400
The Dobot MG400 is a remarkable machine: an industrial-grade small robot compressed into a desktop footprint the size of a coffee maker. Designed for light industrial automation, benchtop production, and advanced research, it delivers plus or minus 0.05-millimeter repeatability and a 750-gram payload with a motion architecture proven in Dobot’s industrial lines. Unlike typical education arms, the MG400 is built for continuous production duty, with a rigid structure, industrial servo control, and vibration-damped motion that keeps small-part placement precise at speed. It supports drag teaching, graphical programming, scripting, and PLC-style IO, so integrators can drop it into real processes while beginners still find it approachable. Typical deployments include electronics assembly, testing, dispensing, inspection loading, and small-part handling in factories where floor space is precious. Research labs also favor it as a precise, affordable platform for micro-assembly and automation studies. The MG400 proves that serious industrial automation no longer requires serious industrial floor space.
Key Specifications
- ±0.05 mm industrial repeatability
- 750 g payload, 440 mm reach
- Desktop footprint, industrial build
- Continuous production duty rated
- Drag teach and graphical programming
- PLC and IO integration support
- Compact controller for tight spaces
- Ideal for electronics bench automation
Electronics Assembly And Testing
Electronics manufacturers use the MG400 for placing components, loading test fixtures, and handling small boards on crowded benches. Its 0.05-millimeter repeatability positions delicate parts reliably, and the compact body fits between existing stations where no conventional robot could. Quick programming lets lines switch products frequently, suiting the high-mix reality of modern electronics production.
Benchtop Dispensing Applications
Producers of sensors, lighting, and medical consumables use the MG400 for precise adhesive and sealant dispensing at the bench. The arm follows complex 3D paths smoothly, keeping bead width consistent, while its small footprint means dispensing capability can be added exactly where it is needed in an existing manual line, automating one bottleneck at a time.
Laboratory And Research Automation
Research laboratories use the MG400 to automate tube handling, plate loading, and instrument tending where precision and cleanliness matter. The scripting interface integrates with lab software, and the industrial repeatability gives experiments consistent physical execution. Its modest price allows labs to dedicate an arm to a single instrument permanently rather than sharing one expensive robot.
Inspection And Quality Loading
Quality departments use the MG400 to load parts into vision inspection stations, measurement jigs, and test sockets, removing tedious manual handling from repetitive checks. The arm presents each part identically, improving measurement consistency, and IO connections let it receive pass or fail signals and sort parts accordingly, closing the loop automatically.
Frequently Asked Questions
How precise is the MG400?
The MG400 achieves repeatability of plus or minus 0.05 millimeters, an industrial-class figure exceptional for a desktop robot. This precision supports electronics assembly, dispensing, and measurement-loading tasks where placement errors of even a fraction of a millimeter would cause defects.
What payload can it carry?
The MG400 is rated for 750 grams, appropriate for small electronic parts, dispensing tools, test probes, and similar end effectors. It targets precision light-duty work rather than heavier handling, keeping its structure rigid and its motion fast and accurate.
Is it suitable for production use?
Yes, unlike most desktop arms, the MG400 is built for continuous industrial duty with a rigid structure and industrial servo control. Many factories run it in daily production for benchtop assembly, testing, and dispensing tasks where space is limited but precision is essential.
How is the MG400 programmed?
Users can program it through drag teaching, a graphical flow interface, or scripting, depending on skill and application complexity. IO connections and communication interfaces allow integration with PLCs and factory systems, making it equally at home in engineering labs and production environments.
What industries use this robot?
Electronics manufacturing, medical device production, laboratories, consumer goods assembly, and research institutions are typical users. Anywhere small parts must be handled precisely on a bench rather than a factory floor, the MG400 offers a fitting combination of size and capability.
Does it need a safety fence?
The MG400’s low power and collision-aware design suit benchtop collaborative use in many applications, though a risk assessment should always be performed. Its small size and integrated safety features make it practical to deploy beside operators in assembly and testing work.
What controller does it use?
The MG400 uses a compact controller that fits in tight cabinets or under benches, connecting over standard interfaces. The small control footprint matches the arm’s design philosophy: full industrial function delivered without the bulky cabinets that traditional industrial robots require.
Can multiple units work together?
Yes, multiple MG400 arms can be coordinated in a benchtop line, each handling a process step and passing parts along. Their compact size makes multi-arm cells practical on ordinary workbenches, enabling sophisticated small-scale automated production without dedicated factory space.
