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Deployment

Robot 557 at Zhengzhou

Conjet's Robot 557 is a robotic hydrodemolition machine that removes deteriorated concrete with a high-pressure water jet moving at constant speed; it preserves rebar and sound concrete, replacing manual jackhammering for bridge decks, tunnels, and surface preparation.

Robot 557 by Conjet · Catalog entry · 1 source · not yet field-verified

Track Robot 557 at Zhengzhou

Machine-readable surfaces

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

Safety record

No incidents on record for Robot 557 at Zhengzhou.

Only active incidents are counted. Retracted incidents are excluded from this summary but remain reachable at their canonical URLs.

Trust tier
Catalog entry · 1 source · not yet field-verifiedhow tiers work →
Last updated
2026-07-12
Model
Robot 557
Company
Conjet
Location
Zhengzhou
Status
operational
First seen
2016-01-01
ID
ec8384af-d8c6-4e2e-812b-389f663432c4

Timeline

  1. Jan 2016
    First recorded
    Robot 557 first documented operating at Zhengzhou.
  2. Jul 2026
    Current status: operational, reviewed
    Latest recorded state. New status transitions append here as the deployment-status recorder produces them.

On the deployment map

Robot 557 operates in Zhengzhou. Explore the full verified map:

Sources (1)

  1. https://www.conjet.com/bridge-huanghe-river/ · 2016-01-01
Methodology: Verified · 1 source (1 primary) · last reviewed 2026-07-12

Verification posture

Verified

High confidence

Review state

Stable

Last reviewed 2026-07-12

Maturity + lifecycle

Lifecycle: active

Architectural position

Cohort: construction

Sources by quality tier

1
primary-company-ir
Company IR disclosure

The framework is documented at /methodology. Corrections at /corrections. Reviewer: DEPLOY editorial team.

Methodology surface for Robot 557 at Zhengzhou.

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.

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