# Robot 557 at Zhengzhou: deployment

Canonical ID: `ec8384af-d8c6-4e2e-812b-389f663432c4`

A Conjet ACR Robot 557 hydrodemolition robot was used for emergency deck repair on the Liujiang Huanghe (Yellow) River Bridge near Zhengzhou, China, after a truck collision damaged the deck. Operator Beijing Fayan Engineering Technology used the robot with a 480 kW power pack to remove 20 to 30 cm of damaged concrete without harming the reinforcing steel.

## Key facts

- **Site:** Liujiang Huanghe (Yellow) River Bridge, near Zhengzhou, China
- **Operator:** Beijing Fayan Engineering Technology LTD
- **Task:** Hydrodemolition of damaged bridge-deck concrete (emergency repair)
- **Depth removed:** 20 to 30 cm without harming rebar
- **Power pack:** 480 kW MPA

**Trust tier:** Unverified

_Last updated: 2026-07-12_

- **Slug:** conjet-557-huanghe-river-bridge
- **Status:** operational
- **Model:** [Robot 557](/models/conjet-robot-557.md) (id: `f0ebc1c4-594a-4d17-9e4c-316d95ab80a3`)
- **Company:** [Conjet](/companies/conjet.md) (id: `66518764-e427-4799-a320-8d054fdbeb50`)
- **Location:** [Zhengzhou](/locations/zhengzhou.md) (id: `6f8a0ba6-3950-4902-bc2b-451d05e02cd2`)
- **First seen:** 2016-01-01T00:00:00.000Z

## Verification log (0, append-only)

_No verifications recorded._

## Sources (1)

1. https://www.conjet.com/bridge-huanghe-river/ · 2016-01-01

## Common questions

### What is the Robot 557 deployment at Zhengzhou?

Robot 557, built by Conjet, is recorded as a deployment at Zhengzhou on the DEPLOY registry. Conjet operates the deployment directly.

### Who operates Robot 557 at Zhengzhou?

Conjet, the manufacturer of Robot 557, operates this deployment directly. This is a maker-deploys-its-own-product arrangement rather than a customer pilot.

### When did the Robot 557 deployment at Zhengzhou go live?

The deployment is recorded as starting January 1, 2016 on the DEPLOY registry. Earlier activity may exist but is not yet sourced.

### Have there been incidents at the Robot 557 deployment at Zhengzhou?

No active incidents affecting this deployment are recorded on the DEPLOY registry. Absence of recorded incidents is not a guarantee no incident occurred; DEPLOY records only sourced incidents and suppresses retracted ones.


_API: GET /v1/robots/ec8384af-d8c6-4e2e-812b-389f663432c4 · feeds: GET /v1/feeds?deploymentId=ec8384af-d8c6-4e2e-812b-389f663432c4 · canonical URL: /deployments/conjet-557-huanghe-river-bridge_