Double-girder bridge crane is a commonly used bridge crane, used with electric trolleys. The performance parameters of the double-girder bridge crane include: lifting capacity, lifting height, span, mechanism working speed, working level, wheel pressure, etc. These parameters are explained in detail below:

A single-girder crane, as the name suggests, has only one beam. A double-girder crane generally refers to a double-girder bridge crane. A double-girder crane generally consists of three major parts: mechanical, electrical and metal structures.

The double-girder bridge crane has superior performance, compact structure, light weight, reliability and operation, and can meet various working conditions. It can reduce the overall investment in the factory, improve production efficiency, reduce maintenance costs, and save operating energy consumption.

Its main advantages: strong power, large traction, and strong climbing ability (can climb 25-degree slopes). The maximum load capacity at a 25-degree slope is 32 tons. At present, the diesel engine monorail crane can achieve 12 drives; the traction force of each drive is 25KN, and the maximum traction force reaches 300KN. Its main disadvantages are: the exhaust gas emitted by the diesel engine causes pollution to the narrow tunnel space, noise pollution, and complicated maintenance.

Maintenance of the diesel monorail crane is very important for the normal transportation of underground mining. Especially in some relatively large coal mines, the depth of the mine is large, the ground pressure is high, and the tunnel floor is seriously deformed.

Compared with other equipment in coal mine transportation, the monorail crane has the ability to perform difficult operations in complex external environments. Its transportation is highly safe and consumes less manpower and material resources.