The Double Trolley Explosion Proof Bridge Crane (QBE Type) is a specialized heavy-duty overhead lifting solution manufactured by Henan Mine, engineered for the most demanding hazardous environments where both explosion safety and high-capacity, flexible lifting are required. This crane represents the largest explosion-proof crane equipment category in China and is widely used in the aerospace and petrochemical industries .

The crane features two independent explosion-proof trolleys operating on a robust double-girder bridge structure. Each trolley is equipped with an explosion-proof hoisting mechanism, allowing the crane to operate in two distinct modes: Independent Mode, where each trolley works separately to handle two different loads simultaneously (effectively doubling handling capacity), and Synchronous Mode, where both trolleys work together in perfect coordination for synchronous lifting, lowering, and workpiece flipping operations .

The crane conforms to strict explosion-proof standards, including GB3836.1, GB3836.2, and FEM European standards. Available explosion-proof grades include ExdⅡBT4 (for ethylene, propane, acetone, gasoline environments) and ExdⅡCT4 (for hydrogen, acetylene, water gas – the highest gas hazard level) .

Designed for hazardous areas with explosive gas or dust, such as chemical plants, oil & gas facilities, pharmaceutical workshops and dust production plants. It handles material handling, equipment installation and maintenance, with dual trolleys enabling synchronized lifting and turning of long or irregular loads safely and efficiently.

Core Applications – Double Trolley Explosion Proof Bridge Crane
1.Aerospace Industry – Lifting large aircraft components, missile sections, satellite assemblies, and heavy aerospace structures in assembly and maintenance hangars where flammable materials and high safety requirements coexist .
2.Petrochemical & Refinery Plants – Transporting chemical raw materials, finished products, and equipment parts in refineries and chemical plants containing flammable and explosive substances; dual-trolley design enables simultaneous lifting of different materials .
3.Natural Gas Extraction & LNG Facilities – Lifting large pipelines, pressure vessels, and heavy equipment at gas wellheads, compressor stations, and LNG terminals where explosive gas atmospheres require ExdⅡCT4 certification .
4.Coal Mining Industry – Underground equipment installation, longwall mining system maintenance, and coal transportation equipment handling in environments filled with flammable gases such as methane .
5.Paint & Coating Facilities – Paint mixing rooms, spray booths, and storage areas where solvent vapors create hazardous conditions requiring spark-proof lifting equipment .
6.Defense & Military Facilities – Arsenals, ammunition depots, and ordnance facilities handling high-risk materials where strict explosion-proof compliance is mandatory .