Import Best Sale Double Girder Steel Bridge Crane — Buy in wholesale FOB from Supplier in China

China Nucleon Crane Group manufactures double girder steel bridge cranes at its base in Crane Industrial Park, Changyuan, Henan province, China, a region with dense concentration of overhead crane production. The double girder configuration uses two parallel main girders with a trolley running on top, allowing higher load capacity and greater hook height than single girder designs of equivalent span. The source description highlights automatic submerged arc welding (SAW) for main structural joints, a process that produces deep penetration and consistent weld quality in thick plate. The crane incorporates a new conductive cable device for power transmission to the trolley and crane bridge, though voltage, current rating, and IP enclosure class are not specified.

Structural steel for bridge cranes in this class typically follows GB/T 14406 or FEM 1.001 standards, with Q345B or Q235B carbon steel as standard girder material. Submerged arc welding of flange-to-web connections achieves full penetration in plate thicknesses of 8-30 mm, with post-weld stress relief often specified for heavy-duty classifications. The conductive cable system referenced may refer to a festoon cable or sliding conductor bar arrangement; standard conductor systems for double girder cranes operate at 380V/50Hz three-phase in the Chinese market, with 400V/690V options for export. Duty cycle and mechanism classification (ISO 4301-1: A3-A7) are not stated and require supplier confirmation to match actual operating intensity.

Buyers span steel fabrication, power plant construction, warehousing, shipbuilding, and heavy equipment maintenance sectors where lifts exceed 20 tonnes or spans exceed 25 metres. The double girder format suits applications requiring precision positioning, auxiliary hoisting, or grab/magnet attachments. Trade terms FOB and CIF are referenced without port specification; given the Changyuan location, Qingdao or Tianjin are probable export ports, though confirmation is needed. ISO and CE certifications are mentioned in the source but no certificate numbers or scope details are provided, so buyers must request current documentation with machinery directive 2006/42/EC compliance evidence.

China Nucleon Crane Group operates from Crane Industrial Park in Changyuan, 453400, Henan province, China. Changyuan county is recognised as China's largest concentration of crane manufacturing, with extensive supply chain integration for steel, electromechanical components, and specialised logistics for oversize cargo. The supplier holds a harbor trust tier with zero recorded response rate and zero average response hours, indicating no engagement data is available through the platform profile. Buyers should treat this as an unverified communication channel and establish direct contact protocols.

The company positions itself as a manufacturer of heavy-duty lifting equipment for industrial applications. No founding date, registered capital, annual revenue, employee count, or installed base figures appear in the source data. The reference to ISO and CE certifications lacks certificate identifiers, scope statements, or Notified Body details, so buyers must independently verify quality management system registration and machinery directive conformity. The Changyuan location suggests proximity to component suppliers and industry labour pools, but this geographic advantage should not substitute for supplier due diligence on production capability and after-sales service infrastructure.