Product details description

Product Introduction

QTZ250(P7030) is a heavy‑duty topkit (hammer‑head) horizontal trolley tower crane with rated lifting moment of 2500 kN·m. It is widely used for large‑scale high‑rise buildings, commercial complexes, industrial plants, bridge and infrastructure construction projects requiring heavy‑load lifting performance.

This heavy‑duty tower crane features a maximum jib length of 70 m, maximum lifting capacity of 16 tons (4‑fall rope), and 3.0 t tip load at 70 m working radius. It adopts a reliable hydraulic self‑climbing jack‑up system for fast on‑site mast adding. The free‑standing height reaches 50 m; with tie‑in attachment frames, the maximum working height can reach up to 200 m according to actual project requirements.

Main Technical Parameters

• Model: QTZ250(P7030) Topkit Tower Crane

• Rated lifting moment: 2500 kN·m

• Max lifting capacity: 16 t (4‑fall rope)

• Max jib length: 70 m

• Tip load @70 m radius: 3.0 t

• Free‑standing height: 50 m

• Max working height (with attachments): 200 m (customizable)

• Standard mast section: 2.0×2.0×3.0 m, panel‑type for container shipment阿里巴巴中...

• Hoist motor: 55 kW

• Control system: Optional PLC & VFD variable‑frequency drive

• Safety devices: Load moment limiter, load limiter, height limit, trolley limit, slewing limit, anemometer, emergency stop

Product Features

1. Heavy‑duty topkit hammer‑head structureRobust frame design with high‑strength Q355 steel components, stable performance for heavy‑load working conditions. The jib can be assembled in multiple lengths (70 m, 65 m, 60 m) to match different site layoutsAlibaba.co....

2. Hydraulic self‑climbing jack‑up systemEfficient hydraulic jack‑up mechanism enables quick height increase on construction site. Panel‑split mast sections are bolt‑connected, convenient for disassembly and cost‑effective container ocean transportation.

3. Optional VFD smooth controlVariable‑frequency drive for hoisting, trolley and slewing mechanisms realizes soft start‑stop, reduces mechanical impact and delivers comfortable, precise operation.

4. Complete multi‑level safety protectionFull set of safety limiters and interlock protections prevent over‑loading and over‑traveling, guaranteeing long‑term safe operation for heavy‑duty jobsites.

5. Export‑ready certificates & global serviceQTZ250(P7030) tower crane from Shandong Gaoan Construction Equipment Co., Ltd. can be provided with CE, ISO, SONCAP certificates, meeting import standards for Middle East, Africa and Southeast Asian markets. We supply full export documents and technical guidance for overseas installation and commissioning.

Application Scenarios

Suitable for super high‑rise residential buildings, large commercial complexes, heavy‑duty industrial workshops, bridge projects, chimneys and other large infrastructure construction. It is an ideal heavy‑lifting solution for projects requiring long jib outreach and high lifting capacity.

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