# FANUC SR-3iA

Hardware · `SR-3iA` · verification: source checked

The FANUC SR-3iA is a 4-axis SCARA robot with a 3 kg maximum wrist load and a 400 mm reach, listed as suitable for small assembly, pick-and-place, inspection and packaging work. It moves within a 360° envelope and has a 200 mm Z-axis stroke. It runs on the FANUC R-30iB Plus controller series and can be programmed through the web-based iRProgrammer interface instead of an iPendant.

## Specification

| Property | Value |
|---|---|
| Category | scara robot |
| Axes | 4 |
| Payload | 3 kg |
| Reach | 400 mm |
| Repeatability | 0.01 mm |
| Weight | 19 kg |
| IP rating | IP20 |

### Joints

| Name | Range min (°) | Range max (°) | Max speed (°/s) |
|---|---|---|---|
| J1 | -142 | 142 | 720 |
| J2 | -145 | 145 | 780 |
| J4 | -720 | 720 | 1800 |

## Connected

- Manufacturer: [FANUC](https://machineschema.com/manufacturer/fanuc.md)
- Controllers: [FANUC R-30iB Plus](https://machineschema.com/controller/fanuc-r-30ib-plus.md)
- Variants: [FANUC SR-3iA/C Food Grade](https://machineschema.com/hardware/fanuc-sr-3ia-c.md), [FANUC SR-3iA/H](https://machineschema.com/hardware/fanuc-sr-3ia-h.md), [FANUC SR-3iA/U](https://machineschema.com/hardware/fanuc-sr-3ia-u.md)

## Safety

- Body and wrist/J3 arm protection rating is IP20.

## Study notes

- Repeatability is stated as ±0.01 mm for J1 and J2, ±0.01 mm for J3, and ±0.004° for J4.
- J3 is a linear Z axis with a 200 mm stroke and a 3000 mm/s maximum speed, so its range and speed are not given in degrees.
- A three-axis variant of the SR-3iA is available according to the datasheet footnote.
- J4 moment/inertia rating is listed as 0.06 kg·m2.
- Datasheet lists a push force of 150 N.
- The robot can be ordered with a bottom cable exit and with wall mounting equipment.
- The overview page also refers to an R-30iB Compact Plus controller for SCARA robots; the technical details section lists the controller series as R-30iB Plus.
- iRProgrammer is a web-based interface used to program the robot from a tablet or desktop computer.

## Sources

1. [SR-3iA SCARA Robot](https://www.fanucamerica.com/products/robot/sr-3ia) (accessed 2026-10-25)
2. [SR 3iA data sheet](https://www.fanucamerica.com/uploads/files/data-sheets/SR-3iA-data-sheet.pdf) (accessed 2026-10-25)

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