What is the difference between bridge-type and beam-type cranes?
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The scope of application of TSG Q0002-2008 \"Regulations on Safety Technical Inspection of Lifting Machinery – Bridge Cranes\" includes explosion-proof bridge cranes and explosion-proof girder cranes, but I have never understood what the difference is between \"bridge type\" and \"girder type\" cranes There are single and double beam types for the beam structure, and it seems there are similar types for the bridge structure as well, so I was confused for a moment. Those who understand the differences among them have stepped forward to answer questions; thank you.
My personal opinion: In the smaller model, the upper part functions as a bridge while the lower part acts as a beam; one supports and the other suspends, resulting in different designs.