Certified Heavy Equipment Export Authority

High-Quality Used Heavy Machinery Supplier & Exporters

Huaian Zhongqiang International Trade Co., Ltd. delivers OEM-certified, 128-point verified tower cranes, twin-cage hoists, and heavy lifting infrastructure directly from China's 30+ acre logistics hub to global engineering contractors.

Direct Yard Allocation

Featured Export-Ready Heavy Inventory

Immediate dispatch capability across OEM flagship models (YOM 2018–2023) thoroughly documented with verified nameplates and structural calibration reports.

POTAIN OEM Cheap POTAIN MC120-6 YOM 2013-2014 Supplier, Exporters
Cheap POTAIN MC120-6 YOM 2013-2014 Supplier, Exporters
  • Config: Hammerhead / Topkit
  • Capacity: 6.0 Ton Max / 60m Jib
  • Status: Pre-Inspected & Tested
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SANY TIER-1 China SANY QTZ100 6013-6 YOM 2019-2023 Manufacturer, Suppliers
China SANY QTZ100 6013-6 YOM 2019-2023 Manufacturer, Suppliers
  • Config: QTZ Class High-Tensile Mast
  • Capacity: 6.0 Ton / Tip Load 1.3 Ton
  • Status: NDT Weld Flaw Verified
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POTAIN TOPKIT China POTAIN MC120-6 YOM 2018 Factory, Exporters
China POTAIN MC120-6 YOM 2018 Factory, Exporters
  • Config: 1.6m Modular Mast System
  • Capacity: 6.0 Ton Rated Capacity
  • Status: Direct Yard Stock
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TEWEI HOIST Best TEWEI SC200/200 YOM 2019-2023 Manufacturer, Manufacturers
Best TEWEI SC200/200 YOM 2019-2023 Manufacturer, Manufacturers
  • Config: Twin Cage VFD Construction Hoist
  • Payload: 2 x 2000 kg Rated Payload
  • Status: SAJ Safety Device Installed
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XCMG GLOBAL Cheap XCMG SC200/200 YOM 2019-2023 Manufacturers, Suppliers
Cheap XCMG SC200/200 YOM 2019-2023 Manufacturers, Suppliers
  • Config: Galvanized High-Speed Mast
  • Payload: Dual 2-Ton Inverter Drive
  • Status: Brake & Drop Tested
Request Technical Dossier
XCMG CRANE Best XCMG QTZ100 6013-6 YOM 2019-2023 Manufacturers, Supplier
Best XCMG QTZ100 6013-6 YOM 2019-2023 Manufacturers, Supplier
  • Config: Stepless Frequency Conversion
  • Capacity: 6.0 Ton Max / 60m Radius
  • Status: Original Paint & Intact Nameplate
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YONGMAO HEAVY Wholesale YONGMAO STT153 7015-10 YOM 2019-2023 Manufacturers, Exporters
Wholesale YONGMAO STT153 7015-10 YOM 2019-2023 Manufacturers, Exporters
  • Config: Flat-Top (Topless) Architecture
  • Capacity: 10.0 Ton Max / 70m Jib
  • Status: Heavy Precast Infrastructure Ready
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DAHAN SERIES Wholesale DAHAN QTZ100 6013-6 YOM 2019-2023 Manufacturer, Suppliers
Wholesale DAHAN QTZ100 6013-6 YOM 2019-2023 Manufacturer, Suppliers
  • Config: Reinforced Chord Section Mast
  • Capacity: 6.0 Ton Max / 1.3t Tip
  • Status: Calibrated Hydraulic Jacking Cage
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Industry Executive Brief

Secondary Heavy Equipment Sourcing: The Strategic CapEx Pivot

In an era defined by fluctuating commodity pricing, compressed construction delivery windows, and intense fiscal scrutiny, procurement directors across EPC consortia are restructuring their asset acquisition strategies.

128PTS
Comprehensive NDT Structural & Electrical Audit
30+ AC
Huai'an Physical Warehouse & Staging Base
55%
Average Capital Expenditure Optimization vs. New
100%
Direct Export Clearance & OEM Nameplate Integrity

Global mega-infrastructure undertakings—from metropolitan rapid transit grids and high-rise commercial corridors to modular precast housing and industrial logistics megaplexes—demand heavy lifting machinery that guarantees uncompromising structural integrity and operational uptime. Historically, procurement teams faced a binary compromise: accept the multi-quarter order-to-delivery lead times and steep capital depreciation of brand-new OEM machines, or navigate the fragmented, high-risk broker ecosystems of pre-owned equipment.

Huaian Zhongqiang International Trade Co., Ltd. eliminates this dichotomy. Headquartered in Huai'an, Jiangsu Province, China, and backed by a leadership team with more than a decade of specialized expertise in used construction machinery sales and international supply chains, we operate as an institutional-grade exporter. With an active physical footprint spanning a 30+ acre warehouse base and modern engineering offices exceeding 500 m², our organization delivers turn-key, inspected, and verified heavy assets from China’s preeminent construction manufacturers—including Zoomlion, XCMG, SANY, Potain (Manitowoc China), Yongmao, Dahan, Gaoli, and Tewei.

Sourcing Ecosystem

The Chinese Factory Ecosystem: Unrivaled Secondary Machine Liquidity

Analyzing the macro-structural conditions that establish China as the world's highest-value market for late-model, low-hour lifting machinery and construction hoists.

Aggressive Fleet Turnover Cycles

Driven by China's hyper-dense infrastructure modernization programs and evolving national environmental standards, domestic state-owned construction contractors systematically retire Tier-1 lifting machinery within 3 to 5 operating years. This creates an abundant reservoir of late-model machines (predominantly YOM 2018–2023) boasting intact fatigue lifespans and modern VFD variable-frequency control architectures.

OEM Manufacturing Clustering

Jiangsu, Shandong, and Hunan provinces form the world's most concentrated heavy machinery manufacturing nexus. Global benchmark facilities—such as Manitowoc's Zhangjiagang Potain factory, Zoomlion’s Changsha Intelligent Tower Crane Park, and XCMG’s high-precision automated fabrication plants—ensure standardized metallurgy (Q345B/Q460 chords), uniform modular pins, and universal replacement parts compatibility globally.

Direct Legal & Customs Autonomy

Unlike intermediate trading brokers who lack physical stock, Huaian Zhongqiang possesses independent import and export operating rights, combined with head-office Chinese National Second-Level Qualifications. We purchase machines directly onto our balance sheet, centralize them in our Huai'an yard, and issue all bills of lading, consular invoices, and certificates of origin under our own institutional name.

Quality Assurance Matrix

Engineering Verification: The 128-Point Pre-Export Diagnostics

A zero-defect methodology separating verified structural lifting assets from secondary-market liabilities. Every unit shipped from our Huai'an facility conforms to stringent metallurgical and dynamic standards.

Phase 1: Structural Non-Destructive Testing

Ultrasonic flaw detection across all primary load-bearing chord butt welds, fishplate connections, and mast section pin pockets. Verification of diagonal lacing straightness, zero plastic deformation, and metallurgical thickness auditing against OEM wear limits.

Phase 2: Kinematic & Slew Dial Calibration

Micrometer dial-indicator measurement of axial and radial play within the slewing ring bearing raceway. Scrutiny of pinion gear mesh backlash, planetary reduction gear teeth wear profiles, and hydraulic slewing brake torque deceleration parameters.

Phase 3: VFD & Electrical Architecture

Thermal infrared imaging of main PLC cabinets, contactors, and variable-frequency inverters (Schneider, ABB, or Yaskawa systems). Insulation resistance (megohmmeter) testing across hoisting and trolley motors, slip-ring assemblies, and multi-core mast cables.

Phase 4: Dynamic Limiters & Safety Devices

Calibration of the Load Moment Limiter (LMI), maximum weight cut-offs, trolley radius travel stops, hook height sensors, and automated anemometer wind-speed alarms. For construction hoists, certified SAJ progressive anti-drop safety brake drop tests.

OEM Manufacturer Flagship Series Structural Metallurgy Control Topology Primary Global Application Export Compliance Dossier
POTAIN (Manitowoc China) MC 120-6 / MC 320-12 Q345B High-Grade Tubular RCS Contactor / Stepless VFD Commercial Core & Infrastructure EN 14439 / CE / EAC
ZOOMLION QTZ200 / QTZ250 (7025-12) Seamless Square Tube (Q345B) Full Inverter (Hoisting/Slewing) Heavy Precast & Bridge Pylons ISO 9001 / GOST / OSHA
XCMG GROUP QTZ100 (6013-6) / SC200 Manganese Alloy Solid Chords Integrated Smart PLC Control High-Density Residential & Elevators AS 1418 / CE Certified
SANY HEAVY INDUSTRY QTZ100 (6013-6) Anti-Corrosion Shot-Blasted Steel Hydraulic Jacking / Anti-Sway VFD General High-Rise Civil Works RCEP / Form E / SASO
YONGMAO STT153 (Topless 7015-10) Reinforced High-Tensile Plate High-Speed Modular Hoisting Confined Urban Multi-Crane Sites Singapore MOM / CE / ANSI
DAHAN / GAOLI / TEWEI SC200/200 Twin Cage Hot-Dip Galvanized Mast Sections Dual 3-Motor Drive / SAJ Arrestors High-Rise Vertical Logistics GB/T 10054 / International Drops
Deployment Scenarios

Macro Industry Solutions & Engineered Site Deployments

Matching dynamic lifting capacities, foundation configurations, and hoist travel speeds to severe job site constraints across the global construction landscape.

Prefabricated & Modular Integrated Construction (MiC)

Modern building methodologies demand immense tip-load capacities to position massive 3D volumetric volumetric pods and structural precast slabs. Equipment such as the Zoomlion QTZ250 (7025-12) or Yongmao STT153 provides the requisite 2.5-ton capacity at extreme 70-meter radii, operating with micro-inching VFD drives that safeguard against joint collision during critical alignment.

Vertical Personnel & Material Logistics

On supertall skyscrapers exceeding 150 meters, material bottlenecks severely compromise project milestones. Our supplied SC200/200 Twin-Cage Construction Hoists from XCMG, Dahan, Gaoli, and Tewei deliver synchronized vertical transit with payloads of 2 x 2,000 kg and operating velocities reaching up to 63 m/min, backed by hot-dip galvanized mast enclosures resistant to marine salinity.

Constrained Urban Overlapping Envelopes

Where multiple tower cranes operate within overlapping jib radii, topkit hammerhead cranes present catastrophic anti-collision risks. Zhongqiang’s fleet of flat-top (topless) tower cranes allows horizontal jib passes with vertical clearances as low as 3 meters between jibs, eliminating tie-rod tension stress and dramatically accelerating multi-crane city-center project timelines.

Financial Optimization

Enterprise TCO Comparison: Refurbished Tier-1 vs. New Acquisition

A quantifiable financial assessment revealing how global contractors achieve early asset payback, conserve debt lines, and preserve liquidity without trading off operational reliability.

Evaluation Parameter Brand-New Tier-1 European Crane Brand-New Domestic Chinese Crane Zhongqiang Inspected Used (YOM 2018–2023)
Initial Capital Outlay (CapEx) 100% Benchmark ($420k - $750k+) 60% - 75% of Benchmark 30% - 45% of Benchmark ($110k - $240k)
Delivery Lead Time to Port 26 to 48 Weeks (Factory Queue) 12 to 20 Weeks (Assembly Cycle) Immediate Stock (Dispatched in 7-14 Days)
Year 1 Depreciation Write-Down 25% – 35% Steep First-Year Loss 20% – 30% Market Drop Minimal (Linear, Stabilized Residual Value)
Mechanical Life Expectancy 20 – 25 Operating Years 15 – 20 Operating Years 12 – 18 Operating Years Remaining
Spare Parts Availability High Cost / Long Regional Lead Time Moderate Cost / Good Availability Low Cost / Universal Standardization in Stock
Internal Rate of Return (IRR) Moderate (Long Capital Amortization) Healthy (Standard Contract Amortization) Exceptional (Payback in Single 18-Mo Project)
Global Supply Chain

Engineering Packaging, Containerization, and Multi-Modal Transit

Safeguarding structural integrity across thousands of nautical miles through scientific dismantling, component tagging, and heavy-gauge ocean packaging.

Precision Demounting & Match-Marking

Every tower crane jib section, counter-jib arm, tie-rod bundle, and mast tie frame is systematically tagged with alphanumeric color-coded maritime steel tags matching our supplied computer-generated reassembly blueprints. High-tensile pins, retaining clips, and bolts undergo ultrasonic cleaning, immersion anti-corrosion grease dipping, and boxed crate grouping.

Specialized Ocean Stowage Configurations

We engineer cargo layouts optimized for sea freight economics: standard 1.6m and 2.0m mast sections are nested within 40ft High Cube (HC) open-top containers, while oversized slewing rings, jibs, and climbing frames are lashed onto 40ft Flat Racks (FR) or booked via heavy-lift breakbulk vessels. Steel cable turnbuckle securing adheres strictly to IMO maritime cargo lashing codes.

End-to-End Customs & Consular Paperwork

Our dedicated in-house export operations department generates the full legal and customs pack required for friction-free discharge at destination ports: Clean on Board Ocean Bills of Lading, Verified Gross Mass (VGM) certificates, preferential Certificates of Origin (Form E, RCEP, Form A), packing lists specifying weight/cube metrics, and certified third-party inspection certifications (SGS, BV, CCIC).

Emerging Horizon

Macro Industry Trends: Decarbonization, Telematics, and Circularity

How the secondary heavy equipment sector is transforming from transactional machine trading into technology-enabled lifecycle asset management.

Scope-3 Carbon Abatement & ESG Compliance

The manufacturing of a new 100-ton-meter tower crane generates roughly 45 to 65 metric tons of embodied carbon dioxide in steel blast-furnace processing alone. Procuring audited, factory-refurbished second-hand machinery directly eliminates this industrial manufacturing footprint, enabling tier-1 EPC contractors to fulfill green building ratings and satisfy strict Scope-3 ESG supply chain disclosure criteria.

IoT Telematics Retrofitting & Smart Diagnostics

Secondary machinery is no longer analog. Zhongqiang facilitates the installation of secondary-market intelligent sensor architectures onto used cranes: 4G/5G remote black-box telematics, digital wind-speed logging, remote operational hour tracking, and multi-camera blind-zone hook monitoring systems that feed telemetry straight into cloud BIM site-management portals.

Grid Compatibility & Universal VFD Conversions

International cross-border deployments often encounter varying power grids—such as converting between 380V 50Hz (common across China, Central Asia, and Europe) and 440V/480V 60Hz (prevalent across the Americas, Saudi Arabia, and the Philippines). Zhongqiang's electrical engineering specialists calibrate transformer coils and adjust inverter bus parameters to guarantee instantaneous, plug-and-play field power integration.

Technical Knowledge Base

Frequently Answered Technical & Procurement Inquiries

Addressing the core metallurgical, contractual, logistical, and operational questions posed by international heavy equipment buyers.

How does Zhongqiang verify that the Year of Manufacture (YOM) is authentic?
Every tower crane and hoist listed in our inventory retains its original riveted OEM brass nameplate displaying the factory serial number, stamped YOM, and tare weight. Furthermore, we cross-reference this data against official Chinese Ministry of Housing and Urban-Rural Development (MOHURD) national equipment safety registry databases and original manufacturer factory logbooks.
What non-destructive testing (NDT) reports are supplied prior to purchase?
We provide full ultrasonic testing (UT) reports covering primary chord welds and fishplates, magnetic particle inspection (MPI) data for mast connection pins and bolts, and precision dial-indicator slewing ring backlash clearance reports. Buyers may also appoint independent third-party surveyors (e.g., SGS, Bureau Veritas, TÜV SÜD) to carry out localized auditing in our Huai'an yard.
How are electrical frequency mismatches (50Hz vs. 60Hz) handled for export?
Because modern cranes from Zoomlion, SANY, and Potain utilize Variable Frequency Drives (VFD) for hoisting, slewing, and trolley mechanisms, the incoming line frequency is rectified to direct current (DC) before outputting controlled alternating current. For contactor-based auxiliary circuits and hydraulic jacking pumps, we install multi-tap isolation step-up/step-down transformers and rated 60Hz pump motors where required.
Can you provide additional mast sections and anchor collar frames for climbing heights?
Yes. Our 30+ acre logistics base maintains thousands of certified standard modular mast sections (including L46A1, L68B1, L68B2, and 1.6m/2.0m fishplate/monobloc designs) along with OEM wall tie collars, internal climbing frames, foundation anchor stools, and fixing angles, allowing you to configure customized hook heights for tall structural projects.
What are the standard international payment security terms for equipment orders?
We work through institutional, secure banking channels, routinely accommodating Irrevocable Letters of Credit (LC at Sight) issued by top-tier international commercial banks, as well as telegraphic transfers (T/T) tied directly to verified staging milestones: deposit against contract, pre-shipment balance upon inspection release and video validation, and release of original Bill of Lading.
What anti-corrosion protection is applied to withstand transoceanic shipping?
Before packing, all exposed machine elements—including wire ropes, open gear rings, pin connections, and hydraulic cylinder rods—are coated with industrial-grade marine heavy rust inhibitors and sealed in waterproof protective wrapping. Electrical cabinets contain desiccant bags and are vacuum-sealed with vapor-corrosion-inhibiting (VCI) films to prevent moisture damage during humid voyages.
How does Zhongqiang support the erection and commissioning process on foreign sites?
Along with complete mechanical assembly manuals, hydraulic jacking sequence schematics, and wiring diagrams, we supply complete video records of the crane operating in our yard before disassembly. For complex commercial sites, our certified commissioning engineers can be dispatched internationally to supervise foundation anchoring, mast climbing, and load moment limiter testing.
Can overseas buyers inspect equipment in person before committing capital?
Contractors and their appointed technical teams are always welcome to visit our 30+ acre facility in Huai'an, Jiangsu. We arrange full airport transfers from Shanghai Pudong (PVG), Nanjing Lukou (NKG), or Huai'an Lianshui (HIA), host on-site dynamic testing, provide live micrometer measurements, and allow unhindered access to inspect our full machine fleet.
Additional Heavy Fleet Deployments

High-Capacity Lifting & Vertical Conveyance Portfolio

Explore heavy-tonnage tower cranes and dual-cage vertical elevators pre-staged for immediate ocean dispatch to your destination port.

DAHAN FACTORY High-Quality DAHAN SC200/200 YOM 2019-2023 Manufacturer, Factory
High-Quality DAHAN SC200/200 YOM 2019-2023 Manufacturer, Factory
  • Config: Dual Passenger / Material Hoist
  • Payload: 2 x 2000 kg Payload Capacity
  • Status: Galvanized Mast Sections
Request Technical Dossier
POTAIN HEAVY Cheap POTAIN MC320-12 YOM 2019-2023 Supplier, Exporter
Cheap POTAIN MC320-12 YOM 2019-2023 Supplier, Exporter
  • Config: Heavy Topkit Heavy Lifting Crane
  • Capacity: 12.0 Ton Max / 70m Jib
  • Status: Precast Core Construction Ready
Request Technical Dossier
ZOOMLION FLAGSHIP China ZOOMLION QTZ250 7025-12 YOM 2019-2022 Factories, Exporter
China ZOOMLION QTZ250 7025-12 YOM 2019-2022 Factories, Exporter
  • Config: QTZ250 Industrial Heavy Crane
  • Capacity: 12.0 Ton Max / 2.5 Ton at 70m
  • Status: Original Factory Paint & Verified Log
Request Technical Dossier
GAOLI OEM Wholesale GAOLI SC200/200 YOM 2019-2023 Factory, Exporter
Wholesale GAOLI SC200/200 YOM 2019-2023 Factory, Exporter
  • Config: High-Speed VFD Hoist
  • Speed: Up to 63 m/min High Travel Rate
  • Status: Certified Overload Device
Request Technical Dossier
ZOOMLION QTZ China ZOOMLION QTZ200 7020-12 YOM 2019-2023 Manufacturers, Exporter
China ZOOMLION QTZ200 7020-12 YOM 2019-2023 Manufacturers, Exporter
  • Config: QTZ200 Heavy Tower Crane
  • Capacity: 12.0 Ton Max / 2.0 Ton at 70m
  • Status: Calibrated Jacking Cage Included
Request Technical Dossier
POTAIN CERTIFIED China POTAIN MC120-6 YOM 2018 Factory, Exporters
China POTAIN MC120-6 YOM 2018 Factory, Exporters
  • Config: Standard Monobloc Mast System
  • Capacity: 6.0 Ton Max Load
  • Status: NDT Flaw Tested & Cleared
Request Technical Dossier
SANY VERIFIED China SANY QTZ100 6013-6 YOM 2019-2023 Manufacturer, Suppliers
China SANY QTZ100 6013-6 YOM 2019-2023 Manufacturer, Suppliers
  • Config: 60m Reach High Tensile Jib
  • Capacity: 6.0 Ton Capacity Class
  • Status: Full Functional Video Log
Request Technical Dossier
XCMG PRO Best XCMG QTZ100 6013-6 YOM 2019-2023 Manufacturers, Supplier
Best XCMG QTZ100 6013-6 YOM 2019-2023 Manufacturers, Supplier
  • Config: Modular Mast Pin Interlock
  • Capacity: 6.0 Ton Max / 1.3 Ton at 60m
  • Status: Complete Tie-Frame Assemblies
Request Technical Dossier
Direct Corporate Engagement

Huaian Zhongqiang International Trade Co., Ltd.

Institutional backing, direct equipment ownership, and comprehensive export logistics based in Huai'an, Jiangsu Province, China.

Head Office & Engineering Center

Office Address: No. 1 R&D Building, Jianghuai Science and Technology Park, Intersection of Huaihe Road and Shuangba Road, Huaiyin District, Huai'an, Jiangsu, China.
Executive Direct Line: +86 158 6170 3388 / +86 139 5237 6668
Engineering Desk Email: [email protected]

Central Staging & Inspection Yard

Yard Facility: West Side of Wenzhou Industrial Park, Qianjiang Road, Huaiyin District, Huai'an, Jiangsu, China.
Footprint: 30+ physical acres dedicated to heavy equipment staging, test erections, ultrasonic weld auditing, and multi-crane containerization bays.

Statutory & Trade Qualifications

Licensing: Chinese National Second-Level Qualification for specialized construction machinery operations.
Trade Rights: Unrestricted autonomous import and export operating certification, enabling direct cross-border trade without intermediary surcharges.