从China供应商批量进口300t Portal Crane

The 300 tonne portal crane from Zhengzhou New Dafang Heavy Industry Science & Technology Co., Ltd. is a rail-mounted gantry crane designed for heavy lifting in ports, shipyards, and large-scale manufacturing yards. The source consultation indicates a main hook rated capacity of 300 tonnes with an auxiliary hook at 20 tonnes, permitting tandem or independent lifting operations. Track gauge options of 20 metres and 10.5 metres are referenced, with a maximum outreach of 50 metres from the rail centreline to the hook centre under load.

Portal cranes of this class typically employ a welded box-section boom and A-frame lattice structure with high-strength structural steel conforming to GB/T 1591 Q345 or equivalent international grades. The lifting mechanism usually incorporates a multi-part reeving system with planetary gearbox and variable-frequency drive for precision load control. The source does not confirm motor power, hoisting speeds, or classification per FEM 1.001 or ISO 4301, so buyers must request the complete machinery specification sheet from the supplier's Erqi District facility.

Primary purchasers include port authorities, heavy marine engineering contractors, large vessel builders, and steel yard operators who require intermittent-duty lifting of modules, ship blocks, and prefabricated assemblies.altha The dual-hook configuration allows handling of auxiliary rigging without swapping main hook attachments. Trade terms, delivery schedule, and installation support are not stated in the source data and require direct negotiation with Zhengzhou New Dafang Heavy Industry Science & Technology Co., Ltd.

Zhengzhou New Dafang Heavy Industry Science & Technology Co., Ltd. is located on Minghui Road, Erqi District, Zhengzhou, Henan Province, China. Zhengzhou is an established base for heavy machinery manufacturing in central China, with established rail and road connections for oversized cargo transport. The supplier holds an imported tier classification and harbor trust tier on the platform, with zero recorded response rate and no average response time data available.

The source provides no information on year of establishment, factory floor area, number of employees, annual crane output, or installed lifting capacity for assembly. No certifications are confirmed in the source data, and claims regarding ISO, CE marking, or China Compulsory Certification must be verified directly with Zhengzhou New Dafang Heavy Industry Science & Technology Co., Ltd. Buyers should request references for installed 300 tonne portal cranes and whether the supplier provides turnkey installation, commissioning, and operator training.