# Dobot MG400

Hardware · `MG400` · verification: source checked

The Dobot MG400 is a four-axis collaborative robot with a 440 mm working radius and a 500 g payload (750 g maximum). It has a 190 mm x 190 mm base footprint and ±0.05 mm repeatability for desktop-scale automation. Programming options include drag-to-teach, Lua, and a graphical interface.

## Specification

| Property | Value |
|---|---|
| Category | collaborative robot |
| Axes | 4 |
| Payload | 0.5 kg |
| Reach | 440 mm |
| Repeatability | 0.05 mm |
| Weight | 8 kg |
| Supply voltage | 100~240V AC, 50/60 Hz |
| Power consumption | 0.15 kW |
| IP rating | IP20 |
| Operating temp min | 0 °C |
| Operating temp max | 40 °C |

### Joints

| Name | Range min (°) | Range max (°) | Max speed (°/s) |
|---|---|---|---|
| J1 | -160 | 160 | 300 |
| J2 | -25 | 85 | 300 |
| J3 | -25 | 105 | 300 |
| J4 | -360 | 360 | 300 |

## Connected

- Manufacturer: [Dobot](https://machineschema.com/manufacturer/dobot.md)
- Protocols: [Modbus TCP](https://machineschema.com/protocol/modbus-tcp.md)

## Safety

- Collision detection is included for human collaboration.
- J2 and J3 motors have brakes.
- Operating environment limit is 0 to 40 °C.

## Study notes

- The MG400 uses servo motors and a high-precision encoder; its drive and controller are integrated in the all-in-one base.
- Programming options are drag-to-teach, Lua, and a graphical interface.
- The ENC interface supports ABZ encoders.
- Communication interface includes TCP/IP and Modbus TCP; port 502 is used for Modbus by default and should not be occupied.
- Base size is 190 mm × 190 mm.
- Rated voltage is 48 V.
- Maximum payload is 750 g; the specification table lists payload as 500 g (max. 750 g).
- The base includes a built-in cooling fan.
- Installation is desktop.
- Vibration suppression algorithm is stated to increase multi-joint motion stability time by 60% and reduce residual vibration by 70%.

## Sources

1. [MG400 Collaborative Robot](https://www.dobot-robots.com/products/desktop-four-axis/mg400.html) (accessed 2026-10-26)

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