Pre-inspected topkit, flat-top, and vertical access systems ready for disassembly, multi-modal packaging, and fast containerized transit.
Strategic re-capitalization, supply chain lead-time mitigation, and the empirical reality of secondary crane markets across developed and emerging construction ecosystems.
Global civil engineering contractors and crane rental fleets are pivoting away from multi-quarter OEM order queues. A prime used tower crane (YOM 2018–2023) has already absorbed the initial 35% steep depreciation curve while retaining over 90% of structural fatigue endurance and certified cycle lifecycle.
The secondary crane trade requires forensic engineering. At our Huai'an hub, our team applies ultrasonic weld flaw detection, magnetic particle inspection on critical pin ear-plates, and precision dial gauge checks on slewing ring raceways, ensuring every asset meets stringent ISO 4301 and FEM classifications.
Exporting complex static and climbing machinery requires professional logistical handling. Mast sections, slewing tables, jib chords, counterweights, and VFD hoist winches are meticulously disassembled, corrosion-inhibited, sequence-marked, and lashed into open-tops, flat racks, or dedicated break-bulk vessels.
Comparative structural metrics across top-tier manufacturers (Potain, Zoomlion, XCMG, SANY, Yongmao, Dahan) for targeted site allocation.
| Equipment Type / Model | OEM Manufacturer | Structural Configuration | Rated Capacity | Jib Reach / Tip Rating | Drive Mechanism System | Prime Operational Target |
|---|---|---|---|---|---|---|
| Potain MC120 / MC320 | Manitowoc / Potain | Topkit Hammerhead (L46A1) | 6.0t – 12.0t | 60m – 70m / 1.5t – 3.2t | RCS Variable Frequency | High-Rise Residential & Urban Infrastructure |
| Zoomlion QTZ200 / QTZ250 | Zoomlion Heavy Industry | Hammerhead / Flat-Top Hybrid | 10.0t – 12.0t | 70m / 2.0t – 2.5t | JOST / Frequency Inverter | Commercial Mixed-Use & Modular Construction |
| XCMG QTZ100 (6013-6) | XCMG Group | Pin-Connected Lattice Tower | 6.0t | 60m / 1.3t | Stepless Hoisting & Slewing | General Civil Contracting & Bridges |
| Yongmao STT153 (7015-10) | Fushun Yongmao | Topless (Flat-Top) Cantilever | 10.0t | 70m / 1.5t | High-Torque VFD Planetary | Multi-Crane Overlapping Airspaces |
| Dahan QTZ100 (6013-6) | Dahan Construction Mach. | Self-Erecting Climbing Tower | 6.0t | 60m / 1.3t | Integrated Standard Control | Medium-Density Housing & Fast Relocation |
| SC200/200 Twin Cage | Tewei / Gaoli / XCMG | Dual-Mast Pinion & Rack Hoist | 2 × 2,000 kg | Up to 250m Mast Height | Centrifugal Brake + Dual VFD | High-Velocity Personnel & Material Transit |
Tailored structural configurations designed to thrive in demanding geopolitical, environmental, and regulatory environments.
Coastal and typhoon-exposed worksites demand cranes engineered for rigorous wind profiles and humidity. We furnish our used Potain and Zoomlion inventory with high-tensile galvanised anchoring collars, high-grade marine anti-corrosive polyurethane primers, and storm weather-vaning slewing release clutches to guarantee site security under tropical cyclonic loads.
Urban downtown jobsites with overlapping crane swing radii require topless/flat-top designs such as the Yongmao STT series. The elimination of the tower head and cathead allows clearance overhead, letting contractors nest crane heights just meters apart, saving tens of thousands in structural climbing cycles and municipal airspace air-rights permits.
Desert mega-projects experience thermal cycles ranging from freezing nights to 50°C summer afternoons. Equipment dispatched to these regions is retrofitted with tropicalized electrical cabinets, forced inverter heat exchangers, heavy-viscosity synthetic gear lubricants, and isolated sand-sealed cab operator consoles.
Bridging second-hand mechanical hardware with contemporary Industry 4.0 safety, telemetry, and anti-collision infrastructure.
Prior to export, we can outfit used mechanical cranes with smart Load Moment Indicators (LMI), optical hook-view camera arrays, and radio-frequency anti-collision radar systems. This enables legacy machines to integrate smoothly with complex BIM environments and comply with European EN 14439 or OSHA jobsite regulations.
Acquiring second-hand equipment without direct parts backing creates project risk. Zhongqiang leverages its long-term relationships with tier-1 Chinese manufacturers to supply complete spare component packages alongside crane exports—including spare slewing motors, contactors, cable rollers, and mast section pins.
Navigating global border control requires meticulous technical compliance. Our in-house export division prepares factory test sheets, CE technical declarations, non-asbestos certifications, third-party SGS/BV inspection dossiers, and bills of lading to ensure predictable customs processing in your destination port.
Explore late-model construction hoists, high-tonnage hammerheads, and industrial climbing systems inspected and cleared for export.
Essential guidance on metallurgical verification, maritime packing, customs clearance, and long-term crane longevity.
