ZE550EK-10-1125 | Built 2021 | 3,620 hrs | Parked in Weinan — Fitted with hook arm (鹰钩臂)

Overview

• Model: Zoomlion ZE550EK‑10‑1125
• Manufacture: 2021 (month not specified)
• Operating hours: 3,620 hrs
• Location: Weinan, Shaanxi, China
• Attachment: Hook arm (鹰钩臂) installed — please confirm exact type and function (lifting hook, material‑handling hook, demolition hook, integrated winch or grapple, etc.)

Condition highlights (what to focus on)

• Usage: 3,620 hrs is relatively high for a 2021 machine; remaining life depends on maintenance and the severity of past use.
• Hook arm / structural: Because this is a lifting/handling modification, inspect all welds, reinforcement plates, hook wear, latch/safety devices, and any non‑OEM alterations. Verify load‑rating/engineering certificates if used for lifting.
• Engine & hydraulics: Cold start, smoke, idle, and listen for abnormal noises; test hydraulic pump/valve pressures and flow, especially circuits feeding the hook arm or auxiliary attachments.
• Boom/arm & pivots: Check pin/bushing clearances, look for cracks or prior repairs, and check for lateral play at joints — critical for safe lifting.
• Undercarriage: Measure track shoe thickness, pin/bushing wear, rollers/idlers and inspect travel motors/final drives for leaks/noise. Higher hours increase likelihood of undercarriage replacement.
• Safety & controls: Verify control response for hook operations, any remote or foot controls, emergency stop and safety interlocks, and operator visibility/camera systems if used for lifting.