# FANUC ER-4iA

Hardware · `ER-4iA` · verification: source checked

The FANUC ER-4iA is a 6-axis industrial robot in the Education Series. It has a 4 kg payload, 550 mm reach, ±0.01 mm repeatability, and 20 kg mechanical weight. It is paired with the R-30iB Plus controller and includes integrated iRVision, a touchscreen iPendant, 26 inputs/22 outputs, dual Ethernet ports, and pneumatic readiness.

## Specification

| Property | Value |
|---|---|
| Category | industrial robot |
| Axes | 6 |
| Payload | 4 kg |
| Reach | 550 mm |
| Repeatability | 0.01 mm |
| Weight | 20 kg |
| Power consumption | 0.5 kW |
| IP rating | IP50 |

### Joints

| Name | Max speed (°/s) |
|---|---|
| J1 | 460 |
| J2 | 360 |
| J3 | 520 |
| J4 | 560 |
| J5 | 560 |
| J6 | 900 |

## Connected

- Manufacturer: [FANUC](https://machineschema.com/manufacturer/fanuc.md)

## Safety

- Smooth stop is included as standard and cannot be disabled.
- Maximum wrist moments/inertia: J4 8.86 N·m / 0.2 kg·m²; J5 8.86 N·m / 0.2 kg·m²; J6 4.9 N·m / 0.067 kg·m².

## Study notes

- Motion range: J1 340°, J2 230°, J3 402°, J4 380°, J5 240°, J6 720°.
- Repeatability is based on ISO 9283.
- I/O: 26 inputs and 22 outputs total.
- Dual Ethernet ports.
- Integrated iRVision and touchscreen iPendant.
- Air solenoids and pneumatic readiness.
- IP50 on body; IP50 on wrist and J3 arm is an option.
- Controller is described as R-30iB Mate Plus in the overview and R-30iB Plus in the specifications and compatibility sections.
- FANUC's product page and datasheet give different values for controllers. Check with FANUC before relying on it.

## Sources

1. [ER-4iA](https://www.fanucamerica.com/products/robot/er-4ia) (accessed 2026-10-25)
2. [er 4ia datasheet](https://www.fanucamerica.com/uploads/files/data-sheets/er-4ia-datasheet.pdf) (accessed 2026-10-25)

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