For small tonnage crane, there are 2 wheels on one side of bridge.
For large tonnage crane, there are 4 wheels on one side of bridge.
Please note we are talking about the no of wheel assuming that it's
top running crane.
For underhung crane the no of wheel is doubled compared to the
same condition top running crane as shown below.
For underhung crane please key in ( 0.5* no of wheel ) as input.
Sample for underhung crane input
