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Double girder overhead crane is a relatively common type of crane, mainly use with electric winch trolley. The main performance parameters of double girder overhead crane generally include: lifting height, lifting capacity, span, working class, wheel pressure, etc. The specific explanation is as follows：

1. Lifting Capacity: It is the maximum lifting weight allow when the double girder bridge crane is working normally.

2. Working Class:The working status index of the crane's full load and the frequency of lifting work. The working class of the crane can be divid into 8 levels from A1 to A8, light level (A1 to A3), intermediate level ( A4, A5), Heavy (A6, A7) and Extra Heavy (A8).

3. Span: the distance between the vertical centerlines of the wheels at both ends of the main girder of the crane.

4. Wheel Pressure: when the crane girder self-weight and the trolley are in the limit position, the maximum vertical pressure of the trolley's self-weight and rated lifting capacity on the crane wheel.

5. Lifting Height: the distance between the upper limit position and the lower limit position of the spreader.

double beam overhead crane

Flagcrane have a professional technical team. which can design and produce standard and non-standard crane hoist and spare parts. If there are other special requirements. it can be customize according to user needs and negotiate by both parties.