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300 Tons Shipbuilding Gantry Crane: Heavy-duty lifting equipment for shipyards & offshore engineering, with 300t main lifting capacity, customizable span/lifting height, 坚固的结构, high precision & 全面安全. ISO/CE认证, ideal for hull assembly & marine component handling.
As a core piece of heavy lifting equipment in modern shipbuilding and offshore engineering, 这 300 tons shipbuilding gantry crane is specifically engineered to meet the rigorous demands of ship hull assembly, section hoisting, and offshore module handling. With its exceptional lifting capacity, 运行稳定, and versatile performance, this crane serves as the “backbone” of shipyards, dry docks, and large-scale marine structure manufacturing sites, significantly enhancing production efficiency and construction safety while adapting to the complex working environments of marine engineering.
这 300 tons shipbuilding gantry crane is a large-span, heavy-duty lifting device designed for outdoor and semi-outdoor operations, integrating advanced mechanical, 电气, and hydraulic technologies. Unlike traditional overhead cranes, it features a gantry frame supported by rigid and flexible legs, allowing it to move freely along ground rails and cover large working areas—making it ideal for hoisting heavy ship sections, 钢板, and marine components with high precision. It is available in both single-girder and double-girder designs, with the single-girder option recommended for large spans and heavy loads due to its cost-effectiveness, while the double-girder design offers enhanced stability for complex lifting tasks.
这 300 tons shipbuilding gantry crane is customizable to meet diverse project requirements, with the following standard technical parameters (customizations available based on client needs):
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技术参数
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细节
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提升能力
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300 吨 (main lifting); auxiliary lifting capacity optional (例如, 32 吨) for light-load operations. Supports dual-trolley lifting (例如, 125t+125t upper trolley and 150/32t lower trolley) for section flipping and precise positioning.
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跨度
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50m – 89m (customizable up to 185m for large shipyards), covering dry docks, slipways, and assembly platforms of various sizes.
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举升高度
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28m – 76m (above and below rail); standard lifting height is 51m for most shipbuilding scenarios, suitable for tall ship hulls and deep dry dock operations.
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工作级别
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A5 (重负), designed for continuous operation in harsh marine environments, with a service life of over 20 years under normal maintenance.
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运行速度
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起升速度 (满载): 0.5 - 5.3 米/分钟; trolley travel speed: 2 - 25 米/分钟; crane travel speed: 3 - 30 米/分钟, ensuring efficient and smooth operation with high precision.
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电源
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3-phase AC 50Hz, 10kV or 380V (可定制), with a total power of up to 1300kW to support heavy-load operations.
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轮重
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Maximum 40 吨, ensuring stable operation on standard crane rails without damaging the ground foundation.
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工作温度
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-20℃ ~ +40℃, adaptable to coastal and offshore climates with high humidity (到 100%) 和腐蚀性环境.
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The gantry frame is made of high-strength Q355B steel, After shot blasting and anti-corrosion painting (epoxy zinc-rich primer + 面漆) to resist salt spray, 湿度, and marine corrosion—extending the crane’s service life in harsh coastal environments. The frame adopts a variable cross-section optimization design to ensure structural strength while reducing overall weight, and the rigid-flexible leg combination prevents structural deformation during heavy-load operation and long-span movement.
Equipped with a frequency conversion control system, the crane achieves stepless speed regulation, 确保平稳提升, 降低, and movement without impact—protecting fragile ship sections and components from damage. The dual-trolley design allows for single lifting, double-hook 举起, and air flipping of ship sections, enabling seamless assembly of hull segments and significantly improving shipbuilding efficiency. A deviation rectification system can be equipped for extra-large spans to ensure stable movement of rigid and flexible legs, 防止结构损坏.
安全是重中之重, with multiple protection devices to ensure operator and equipment safety: 过载限制器, 起升高度限制器, trolley travel limiter, crane travel limiter, wind speed and direction monitoring system, rail clamp device, and anchor device. The overload limiter automatically cuts off power when the load exceeds the rated capacity, while the wind speed monitoring system stops operation in strong winds (≥15m/s) to avoid accidents. All electrical components comply with international standards (例如, Schneider) 性能可靠.
The crane is suitable for various shipbuilding scenarios, including dry dock operations, slipway construction, offshore platform assembly, and steel structure handling. It can be customized with different spans, 起升高度, and trolley configurations to meet the specific needs of small, 中等的, and large shipyards. Optional configurations include a 10t 360° rotating maintenance crane for convenient equipment maintenance, 无线遥控, and cabin control for flexible operation.
这 龙门起重机 is designed with maintenance in mind, featuring accessible components, centralized lubrication systems, and clear maintenance instructions. Routine maintenance is simple and cost-effective, 减少停机时间和运营成本. The modular design allows for quick replacement of damaged parts, ensuring continuous operation of the shipbuilding line.
我们的 300 tons shipbuilding gantry crane complies with international standards, 包括ISO, CE, SGS, Gost, and BV certifications, ensuring reliable quality and safe operation worldwide. We have rich experience in manufacturing heavy-duty shipbuilding gantry cranes, with products widely used in national key projects and global shipyards. Each crane undergoes strict factory testing, 包括负载测试, 性能测试, 和安全测试, before delivery to ensure it meets design requirements and industry standards.
We provide comprehensive after-sales service to support our clients throughout the crane’s lifecycle: 由经验丰富的工程师专业安装调试, on-site operator training, regular maintenance guidance, 和 24/7 技术支援. We also offer spare parts supply and on-site repair services to minimize downtime and ensure the crane operates at peak performance. Engineers are available to service machinery overseas to meet the needs of global clients.
这 300 tons shipbuilding gantry crane combines power, 精确, and durability to become an indispensable piece of equipment for modern shipbuilding and marine engineering. With customizable configurations, 可靠的性能, 和全面的安全防护, it helps shipyards improve production efficiency, 降低成本, and achieve sustainable development in the competitive marine industry.
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