# Nachi SRA250-01

Hardware · `SRA250-01` · verification: source checked

The Nachi SRA250-01 is a six-axis articulated industrial robot with a 250 kg wrist payload and a 2,792 mm reach. It is floor-mounted and uses AC servo motors, with applications listed as machine tending, material handling, palletizing, and spot welding. The document states that it is paired with a Nachi FD controller and servo-gun software for spot welding.

## Specification

| Property | Value |
|---|---|
| Category | industrial robot |
| Axes | 6 |
| Payload | 250 kg |
| Reach | 2792 mm |
| Repeatability | 0.2 mm |
| Weight | 1030 kg |
| Operating temp min | 0 °C |
| Operating temp max | 45 °C |

### Joints

| Name | Range min (°) | Range max (°) | Max speed (°/s) |
|---|---|---|---|
| J1 | -180 | 180 | 100 |
| J2 | -80 | 60 | 90 |
| J3 |  |  | 95 |
| J4 | -360 | 360 | 125 |
| J5 | -130 | 130 | 125 |
| J6 | -360 | 360 | 190 |

## Connected

- Manufacturer: [Nachi Robotics](https://machineschema.com/manufacturer/nachi-robotics.md)

## Safety

- Explosion proof is not available.
- Permitted height is not higher than 1.000 m above sea level; use at higher place affects the permitted temperature.
- Operating humidity is 20 to 85 %RH with no dew condensation; installation-face vibration must not exceed 0.5 G (4.9 m/s²).
- Noise is 79.6 dB(A) at maximum payload and maximum speed.

## Study notes

- The specification table lists the robot model as SRA250-01; the page title and additional information use SRA250.
- Construction is articulated with six axes and AC servo motor drive.
- Applications listed: machine tending, material handling, palletizing, and spot welding.
- The document names a Nachi FD controller with 4th-generation servo gun software; this controller has no matching id in the reference list.
- Wrist protection is IP67 equivalent; body protection is IP54 equivalent.
- A hollow arm series is available for internal routing of spot-welding utilities such as cooling water, weld power, signals, and servo gun cables.
- An integrated spot weld timer is available in AC and DC versions, with pressure calibration up to 10 points.
- Forearm allowable load for the SRA250-01 column is listed as 20 kg (45 kg at maximum).
- Position repeatability is stated to conform to JIS B 8432; noise is measured under JIS Z 8737-1 (ISO 11201).

## Sources

1. [SRA250](https://www.nachirobotics.com/product/sra250/) (accessed 2026-10-25)

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