# Nachi Robotics SRA166L

Hardware · `SRA166L` · verification: source checked

The Nachi SRA166L is a six-axis articulated industrial robot. It is intended for spot welding, machine tending, material handling, palletizing, and dispensing. The document lists a 166 kg payload, 2951 mm reach, ±0.15 mm position repeatability, and 980 kg robot mass.

## Specification

| Property | Value |
|---|---|
| Category | industrial robot |
| Axes | 6 |
| Payload | 166 kg |
| Reach | 2951 mm |
| Repeatability | 0.15 mm |
| Weight | 980 kg |
| Operating temp min | 0 °C |
| Operating temp max | 45 °C |

## Connected

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

## Safety

- Operating height limit: not higher than 1,000 m above sea level; at higher altitudes the permitted temperature is affected by height.
- No condensation is allowed.
- Explosion proof is not available.
- Noise level is 79.6 dB, measured as A-weighted equivalent sound level under JB-Z 873-1 (ISO 11201) at maximum payload and maximum speed.

## Study notes

- The SRA series is designed for robotic spot welding in automotive applications.
- The document specifies FD controllers for SRA series robots; no matching controller id is in the provided reference list.
- The specification table lists SRA120EL-01, SRA133L-01, and SRA168L-01; the page title and additional information identify SRA166L with 166 kg payload and 2951 mm reach.
- SRA series payloads range from 100 kg to 240 kg, with floor-mount, invert-mount, and long-reach models over 3 meters.
- Hollow-arm SRA models route spot welding utilities internally: cooling water, weld power, signals, and servo gun cables.
- Nachi's integrated spot weld timer is available in AC and DC versions; it is programmable from the robot teach pendant and stores weld results for traceability.
- Pressure calibration supports up to 10 points for spot welding pressure accuracy.
- The document states that the controller display shows axis labels J1 through J6.

## Sources

1. [SRA166L](https://www.nachirobotics.com/product/sra166l/) (accessed 2026-10-25)

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