Inspected topkit, flat-top tower cranes and dual-cage passenger/material hoists from OEM market leaders, staged across our 30+ acre facility in Huai'an, Jiangsu.
Navigating capital expenditure optimization, OEM supply chain compression, and asset residual valuation across developing and mature building ecosystems.
Global general contractors face severe margin constraints. Investing in late-model used equipment (YOM 2018–2023) saves 45% to 65% in upfront expenditure compared to factory-new machinery, allowing firms to preserve operational liquidity while winning competitive public and commercial bids.
Procuring tier-one OEM tower cranes directly from primary manufacturers frequently incurs backlog wait periods ranging from 6 to 14 months. Our export-ready yard inventory eliminates production delays, enabling delivery to international ports within days of technical verification.
Modern Chinese construction equipment engineered by Zoomlion, XCMG, and SANY is constructed using high-yield structural steels (Q345B, Q460). Having undergone standardized domestic duty cycles, these units maintain pristine chord sections and slewing mechanisms when maintained to OEM protocols.
Our centralized processing base provides full-spectrum quality control, comprehensive dismantling, ultrasonic testing, and containerized logistics solutions.
Dedicated footprint in Huai'an, Jiangsu, holding immediate inventory of structural masts, jibs, and passenger hoist enclosures.
Multi-point structural, mechanical, hydraulic, and electrical safety audits performed on every serial-numbered unit.
Direct trade corridors connecting our East China facilities to North America, Europe, MENA, APAC, and Latin America.
Our operating structure holds full licensed rights for independent international engineering machinery distribution.
Demystifying Chinese National Standard (GB) naming architectures alongside international performance criteria.
| Model Series | Nominal Load Moment | Jib Reach / Tip Rating | Maximum Hook Capacity | Standard Hoist Speed | Primary Industrial Application |
|---|---|---|---|---|---|
| QTZ100 (6013-6) | 100 t·m class | 60 m / 1.3 t | 6,000 kg | 0 - 80 m/min (VF control) | Mid-rise residential & light commercial structures |
| QTZ200 (7020-12) | 200 t·m class | 70 m / 2.0 t | 12,000 kg | 0 - 100 m/min | Prefabricated concrete construction & infrastructure |
| QTZ250 (7025-12) | 250 t·m class | 70 m / 2.5 t | 12,000 kg | 0 - 100 m/min | Heavy industrial plants, bridges, and high-rise cores |
| Potain MC320 | 320 t·m class | 70 m / 3.2 t | 16,000 kg | Variable frequency drive | Complex civil transit, dams, and deep foundation nodes |
| SC200/200 Hoist | N/A (Twin Rack & Pinion) | Standard masts: 650×650 | 2 × 2,000 kg payload | 36 - 63 m/min (VFD option) | Vertical transport of materials and workforce (0-300m) |
We perform ultrasonic thickness testing and magnetic particle inspection across critical weld nodes, including the turntable slewing support, jib root pins, and mast fishplate attachments to verify zero micro-fracturing or fatigue propagation.
Using precision dial gauges, our engineering team measures axial and radial gear ring backlash on brands like Rothe Erde and local OEM slewing bearings, discarding assemblies that exceed factory play tolerances before export approval.
Limiters (weight, moment, height, and trolley travel) are re-calibrated. Hoist brakes and planetary gearboxes undergo thermal and vibration evaluations under simulated 125% rated overload conditions to satisfy destination safety regulators.
Configuring used lifting systems to navigate distinct environmental, jurisdictional, and logistical realities worldwide.
Deployments across Southeast Asia (Vietnam, Philippines, Indonesia) and coastal territories require specialized epoxy re-coating, moisture-sealed electrical cabinets (IP65/IP66), and stainless-steel electrical terminals to mitigate high ambient salinity and monsoonal corrosion.
For installations in Central Asia, Northern Europe, and Canada, hydraulic oils and greases are flushed and replaced with low-temperature synthetic variants (ISO VG 32/46 Arctic grade), while mast steel elements are cross-checked for low-temperature Charpy V-notch impact toughness.
Metropolitan sites in North America and Western Europe often face extreme airspace oversailing restrictions. We configure flat-top (topless) models (e.g., Yongmao STT series) enabling tight crane-overlapping radiuses, integrated with modern anti-collision radar systems.
The secondary market is pivoting from basic mechanical resale toward intelligent, connected machine ecosystems.
Integrating cellular and satellite CAN-bus loggers allows remote buyers to track load moments, motor winding temperatures, cycle counts, and brake linings in real-time via centralized cloud dashboards, bridging the gap between used assets and smart construction sites.
Legacy slip-ring contactor systems are systematically upgraded with modern Schneider or ABB inverters. This slashes electrical generator consumption on remote sites by up to 35% while providing smooth acceleration curves and minimizing mechanical stress on mast bolts.
Our Huai'an yard aligns with circular economy initiatives, standardizing mechanical abrasive sandblasting, zinc-phosphate priming, and eco-friendly polyurethane top-coating, extending functional operating life cycles by 8 to 12 years per lifecycle turnaround.
We mitigate cross-border shipping risk via strict container layout optimization, specialized rigging crews, and comprehensive customs protocols.
Mast sections (1.6m × 1.6m and 2.0m × 2.0m) and jib segments are systematically nested into 40ft High Cube (HQ) containers or onto specialized Flat Racks (FR), maximizing weight allowances and protecting hydraulic cylinders.
Every shipment is backed by verified commercial invoices, clean Bills of Lading (B/L), Certificates of Origin (CO/Form E/Form F), original machine nameplates, and comprehensive photographic pre-loading inspection logs.
Located in Huai'an, Jiangsu, our logistics team directly interfaces with Shanghai, Ningbo, and Qingdao ports via inland waterways and express heavy-haul corridors, cutting transit turnaround by up to 5 business days.
Our field engineering staff supplies digital electrical schematics, hydraulic schematics, foundation bolt placement templates, and live video supervision during on-site mast jumping and initial jib pinning operations.
Direct, transparent answers regarding machinery provenance, life expectancy, documentation, and international shipping protocols.
YOM stands for Year of Manufacture. Huaian Zhongqiang International focuses exclusively on late-model machinery, predominantly ranging between 2018 and 2023. The authentic manufacturing year is stamped on the original OEM chassis nameplate and cross-verified via manufacturer factory build logs.
Our quality assurance engineers run a 128-point technical inspection protocol. Mast sections, slewing turntables, and jib members undergo ultrasonic thickness measurements to detect metal wall erosion, followed by magnetic particle and dye-penetrant inspection on critical weld roots to guarantee zero stress fractures.
Yes. International buyers are welcome to visit our 30+ acre facility in Huai'an, Jiangsu, China. Alternatively, clients can contract independent third-party inspection firms (e.g., SGS, Bureau Veritas, TÜV) or request a real-time, high-definition video audit covering all structural codes and live functional motor tests.
Equipment is precision-dismantled into designated modular sub-assemblies. All delicate electronic controls, PLC modules, and inverter drives are bubble-sealed in desiccated enclosures. Machined gear teeth and pin connections are treated with marine-grade rust preventatives, lashed inside containers using heavy-duty steel turnbuckles.
We supply a complete document pack: Bill of Lading (B/L), Commercial Invoice, Packing List with detailed piece weights and container packing diagrams, Certificate of Origin (CO), and certified pre-shipment technical test records. Country-specific forms (such as SASO or CE declarations) are arranged upon demand.
Because we specialize in major global brands (Zoomlion, XCMG, SANY, Potain, Dahan), interchangeable standard mast sections (e.g., L46A1, L68B1, 1.6m pin-type, 2.0m bolt-type), wall tie collars, hoist motors, and safety limiters are continuously stocked and ready for immediate consolidated air or sea dispatch.
Explore verified heavy-capacity construction hoists and certified tower cranes configured for international contractors, rental companies, and engineering syndicates.
