エネルギー機器吊り上げ用QD 50Tダブルガーダー天井クレーン

2025 年 11 月 28 日

Qinghai Baolihua Energy Technology Co., Ltd. has achieved a breakthrough in heavy equipment handling by introducing the QD50t double girder overhead crane. The solution not only resolves the technical bottlenecks associated with lifting large-scale energy equipment but also delivers significant improvements in operational safety and efficiency. This case provides a scalable upgrade model—combining high load capacity, intelligent control, and low maintenance cost—for similar heavy-industry environments, advancing double girder cranes toward modularization and intelligent operation.

Qinghai Baolihua Energy Technology Co., Ltd. Overview

Qinghai Baolihua Energy Technology Co., Ltd., established in 2013 and headquartered in Xining, Qinghai Province, China, specializes in energy-recycling technologies and advanced aluminum materials. The company focuses on residual pressure, heat, and energy recovery, recycled aluminum utilization, new-material development, and aluminum-alloy processing. It also provides R&D, manufacturing, and technology transfer services for non-ferrous metal processing equipment and automation systems. With integrated capabilities across research, production, and technical services, Baolihua drives efficient resource use and sustainable industrial development.

Double Girder Overhead Crane Equipment Overview

The QD50t 二重桁天井クレーン, custom-designed for Qinghai Baolihua Energy Technology, is a heavy-duty lifting system with a rated capacity of 50 tons. The double girder overhead crane offers a span range of 26–31.5 meters (customized according to workshop layout) and a lifting height of 9–22 meters. It is equipped with dual hooks (main hook 50 tons + auxiliary hook 10 tons) and achieves working class A6 for high-frequency operations.

The main girders adopt a welded box-girder structure combined with lightweight European-style design technology, reducing overall crane weight by 15% while maintaining high structural strength for heavy-duty applications.

Double Girder Overhead Crane Core Application Scenarios

Energy Equipment Lifting

Tasks: Lifting large pressure vessels (35–45 tons each) and reactor modules (12 m long, 28 tons).
結果： Dual-hook coordinated lifting enables precise positioning of complex equipment (accuracy ±3 mm), improving lifting efficiency by 40%.

Production Line Material Handling

Tasks: Transferring steel pipes and metal plates (15–20 tons per bundle) across multi-bay workshops.
結果： The long-span design covers the entire production area, reducing secondary handling and increasing logistics efficiency by 35%.

Equipment Maintenance Support

Tasks: Assisting in the maintenance of large motors and gearbox assemblies (up to 25 tons).
結果： The wireless remote-control system enables operators to complete precise lifting from a safe distance, reducing maintenance-related risks.

Double Girder Overhead Crane Technical Innovations

Intelligent Safety System

Integrated overload protection, 3D anti-collision sensors, and wind-speed monitoring (automatic shutdown at ≥12 m/s).
PLC + touchscreen control supports fault self-diagnosis and remote monitoring.

Structural Optimization

Main girders built with Q345B high-strength steel and pre-cambering (mid-span deflection ≤ L/1000).
Trolley mechanism uses a compact three-in-one drive system (motor + reducer + brake), simplifying maintenance.

Environmental Adaptability

Equipped with dust-proof covers and high-temperature-resistant lubricants (operating range −20°C to 60°C).
Uses QU120 hardened rails to withstand high-frequency heavy load impacts.

User Feedback & Benefits

Efficiency: Equipment failure rate kept below 0.3%, reducing annual maintenance downtime by 60 hours.
Cost Optimization: Energy consumption reduced by 18% compared to conventional cranes (via variable-frequency drive technology).
Safety: Zero safety incidents in three years of operation; certified to ISO 13849 safety standards.